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  <url>
    <loc>https://samplingdepot.com/</loc>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-4ll</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Hydrogen Sulfide - Range - 0.25-120 ppm 4LL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-4lb</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Hydrogen Sulfide - Range - 0.5-12 ppm 4LB</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-4lk</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Hydrogen Sulfide - Range - 1-40 ppm 4LK</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/water-vapor-6llp</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.6LLP_Front_01crop-1920w_d29b8c9c-ec92-4380-9059-af19c65aa8bb.jpg?v=1636524915</image:loc>
      <image:title>Water Vapor - Range - 2-10 LB/MMCF 6LLP</image:title>
      <image:caption></image:caption>
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  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-4h</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.4H_Front_01crop-1920w_3f0cfae0-f70b-4b3e-81f1-48411d26b878.jpg?v=1636524916</image:loc>
      <image:title>Hydrogen Sulfide - Range - 10-4000 ppm 4H</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-refrig-tube-4lt</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.4LT_Front_01crop-1920w_520e1ee3-a0a4-41a5-8197-763f307cd9c5.jpg?v=1636524917</image:loc>
      <image:title>Hydrogen Sulfide REFRIG TUBE - Range - 0.05-4 ppm 4LT</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/water-vapor-6lp</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.6LP_Front_01crop-1920w_0a5ff22a-5204-4015-abe2-fe9036909c5a.jpg?v=1636524918</image:loc>
      <image:title>Water Vapor - Range - 3-100 LB/MMCF 6LP</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-chloride-14l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.14L_Front_01crop-1920w.jpg?v=1636524919</image:loc>
      <image:title>Hydrogen Chloride - Range - 0.2-76 ppm 14L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-4m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.4M_Front_01crop-1920w_8155b7b2-3ada-48ba-9475-03402af9de2d.jpg?v=1636524920</image:loc>
      <image:title>Hydrogen Sulfide - Range - 12.5-500 ppm 4M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-4hh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.4HH_Front_01crop-1920w_dd5f484f-ff5e-48d8-9c58-9504628db0ec.jpg?v=1636524921</image:loc>
      <image:title>Hydrogen Sulfide - Range - 0.1-4.0% 4HH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethyl-mercaptan-72l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.72L_Front_01crop-1920w_57ba562f-a3d8-4625-82f2-80485a111f67.jpg?v=1636524923</image:loc>
      <image:title>Ethyl Mercaptan - Range - 0.2-75 ppm 72L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ammonia-3l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.3L_Front_01crop-1920w.jpg?v=1636526677</image:loc>
      <image:title>Ammonia - Range - 0.5-78 ppm 3L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfur-dioxide-5dh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.5DH_Front_01crop-1920w_c74a2df4-747d-4900-ab7c-60f9f643dae7.jpg?v=1636524929</image:loc>
      <image:title>Sulfur Dioxide - Range - 10-600 ppm 5DH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-2l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.2L_Front_01crop-1280w_1.jpg?v=1639341430</image:loc>
      <image:title>Carbon Dioxide - Range - 0.13-6% 2L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-4hm</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.4HM_Front_01crop-1920w_d6b5d56a-d875-4532-b6af-0053ad587f1b.jpg?v=1636524931</image:loc>
      <image:title>Hydrogen Sulfide - Range - 25-1600 ppm 4HM</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethyl-mercaptan-72p</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.72P_Front_01crop-1920w_f8217915-54ef-4c70-95e4-38ac29445142.jpg?v=1636524932</image:loc>
      <image:title>Ethyl Mercaptan - Range - 2.5-30 ppm  72P</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-2h</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.2H_Front_01crop-1920w_c268e6bb-8f43-46e3-bda0-294df307f9fd.jpg?v=1636524934</image:loc>
      <image:title>Carbon Dioxide - Range - 0.5-20% 2H</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ammonia-3la</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.3La_Front_01crop-1920w_7212994f-7cb8-4b7f-98e0-afe475cbf35b.jpg?v=1636524935</image:loc>
      <image:title>Ammonia - Range - 2.5-200 ppm 3LA</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/benzene-121l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.121L_Front_01crop-1920w_bdf1081c-a26d-4816-9a0d-675aa39e0acc.jpg?v=1636524936</image:loc>
      <image:title>Benzene - Range - 0.1-65 ppm 121L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/benzene-121sp</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.121SP_Front_03crop-1920w_a899f6fa-77a6-440a-a5d1-46adfe4bca42.jpg?v=1636524947</image:loc>
      <image:title>Benzene - Range - 0.2-66 ppm 121SP</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nitrogen-oxides-11l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.11L_Front_02crop-1920w.jpg?v=1636524948</image:loc>
      <image:title>Nitrogen Oxides - Range - 0.03-14 ppm 11L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-monoxide-1lk</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.1LK_Front_01Crop-1920w_7d30f3d1-606f-4e0a-a20e-b040eab0ae1c.jpg?v=1636524949</image:loc>
      <image:title>Carbon Monoxide - Range - 5-600 ppm 1LK</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfur-dioxide-5lc</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.5LC_Front_01crop-1920w_2a61eb00-2437-40ea-8069-f29c99dea44e.jpg?v=1636524950</image:loc>
      <image:title>Sulfur Dioxide - Range - 0.1-25 ppm 5LC</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/phosphine-7la</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.7LA_Front_02crop-1920w_69bbe0ce-96ea-4911-9f4e-f7d5a40cd8a0.jpg?v=1636524951</image:loc>
      <image:title>Phosphine - Range - 0.05-9.8 ppm 7LA</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/chlorine-8la</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.8La_Front_01crop-1920w_59693e61-912c-420e-867c-ca87409750ff.jpg?v=1636524953</image:loc>
      <image:title>Chlorine - Range - 0.1-16 ppm 8LA</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/water-vapor-6l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.6L_Front_02crop-1920w.jpg?v=1636524954</image:loc>
      <image:title>Water Vapor - Range - 0.95-2 mg/L 6L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-4hp</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.4HP_Front_01crop-1920w_398cf75a-f434-41b0-9f2c-f2554cd38450.jpg?v=1636524955</image:loc>
      <image:title>Hydrogen Sulfide - Range - 0.25-20% 4HP</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethanol-112l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.112L_Front_01crop-1920w_ae6fe0df-b6e7-4aa4-a08a-0c19992980ce.jpg?v=1636524956</image:loc>
      <image:title>Ethanol - Range - 50-2000 ppm 112L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/acetaldehyde-refrig-tube-92m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.1LL_Front.jpg?v=1652381907</image:loc>
      <image:title>Carbon Monoxide - Range - 5-50 ppm 1LL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbonyl-sulfide-refrig-tube-21la</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.21LA_Front_01crop-1920w_770f15ec-a86c-4ce7-bd6f-5a650d377c70.jpg?v=1636524961</image:loc>
      <image:title>Carbonyl Sulfide REFRIG TUBE - Range - 2-125 ppm 21LA</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/oxygen-31b</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.31B_Front_01crop-1920w_d5fdf570-e43b-4877-a5c8-cb968e71ffd8.jpg?v=1636524963</image:loc>
      <image:title>Oxygen - Range - 3-24% 31B</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfide-ion-211</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.211_Front_01crop-1280w_1.jpg?v=1639341298</image:loc>
      <image:title>Sulfide Ion - Range - 1-100 ppm 211</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/mercaptans-70l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.70L_Front_01crop-1920w_9549b4d9-1e0c-4c8f-9d85-7962b193ba5e.jpg?v=1636524966</image:loc>
      <image:title>Mercaptans - Range - 0.1-8 ppm 70L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-fluoride-17</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.17_Front_01crop-1280w_1.jpg?v=1639341094</image:loc>
      <image:title>Hydrogen Fluoride - Range - 0.25-100 ppm 17</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ammonia-3m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.3M_Front_01crop-1920w_20628a52-245c-4a4c-921b-b0ad1a4dfa91.jpg?v=1636524968</image:loc>
      <image:title>Ammonia - Range - 10-1000 ppm 3M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethyl-mercaptan-72</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.72_Front_01crop-1280w_1.jpg?v=1639342543</image:loc>
      <image:title>Ethyl Mercaptan - Range - 0.5-120 ppm 72</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-2ll</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.2LL_Front_01crop-1920w_76e60c88-fba3-4081-a0e9-b00451c12e65.jpg?v=1636524970</image:loc>
      <image:title>Carbon Dioxide - Range - 300-5000 ppm 2LL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/methanol-111ll</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.111LL_Front_01crop-1920w_38322d02-b385-4e67-95a6-182035b67db0.jpg?v=1636524971</image:loc>
      <image:title>Methanol - Range - 2-56 ppm 111LL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/water-vapor-6</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.6_Front_01crop-1280w_1.jpg?v=1639341593</image:loc>
      <image:title>Water Vapor - Range - 0.5-32 mg/L 6</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/formaldehyde-refrig-tube-91l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.91L_Front_01crop-1920w_3c45d03f-08d8-4ea9-ae6e-f3ab2137bb44.jpg?v=1636524973</image:loc>
      <image:title>Formaldehyde REFRIG TUBE - Range - 0.1-40 ppm 91L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/mercaptans-70</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.70_Front_01crop-1280w_1.jpg?v=1639341655</image:loc>
      <image:title>Mercaptans - Range - 0.5-120 ppm 70</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/acetic-acid-81d</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.81D_Front_01crop-1920w_188ea264-641d-447b-9e68-b9a67554b765.jpg?v=1636524976</image:loc>
      <image:title>Acetic Acid - Range - 0.5-100 ppm 81D</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfide-ion-211ll</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.211LL_Front_01crop-1920w_8a36fe65-0fd7-428a-a072-d8b0bf85685e.jpg?v=1636524978</image:loc>
      <image:title>Sulfide Ion - Range - 0.5-20 ppm 211LL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-nx169lm</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX169LM-Tube-box-Combo-2024.jpg?v=1771749379</image:loc>
      <image:title>Hydrogen Sulfide - Range - 0.75-300 ppm NX169LM</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-nx169l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX169L-Tube-box-Combo-2024.png?v=1771748980</image:loc>
      <image:title>Hydrogen Sulfide - Range - 1-60 ppm NX169L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-mercaptans-nx170</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX170-Tube-box-Combo-2024-no-tube_1.png?v=1771748686</image:loc>
      <image:title>Hydrogen Sulfide-Mercaptans - Range - H2S 1-30 ppm ;RSH 0.5-5.5 ppm NX170</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/water-vapor-nx222pl</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX222PL-tube-box-2024_combo.jpg?v=1771748980</image:loc>
      <image:title>Water Vapor - Range - 2-12 LB/MMCF NX222PL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-nx169h</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX169H-Tube-box-Combo-2024.jpg?v=1771748442</image:loc>
      <image:title>Hydrogen Sulfide - Range - 0.05-1.2% NX169H</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-nx169vvl</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX169VVL-Tube-box-Combo-2024.jpg?v=1771749126</image:loc>
      <image:title>Hydrogen Sulfide - Range - 0.1-6 ppm NX169VVL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/water-vapor-nx222ph</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX222PH-Tube-box-Combo-2024.jpg?v=1771748980</image:loc>
      <image:title>Water Vapor - Range - 3-80 LB/MMCF NX222PH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/water-vapor-nx222pm</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX222PM-Tube-box-Combo-2024.jpg?v=1771749379</image:loc>
      <image:title>Water Vapor - Range - 2-25.2 LB/MMCF NX222PM</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-chloride-nx164l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX164L-Tube-box-Combo-2024.jpg?v=1771749126</image:loc>
      <image:title>Hydrogen Chloride - Range - 0.4-40 ppm NX164L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-nx169vh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX169VH-Tube-box-Combo-2024.jpg?v=1771748442</image:loc>
      <image:title>Hydrogen Sulfide - Range - 0.1-4% NX169VH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethyl-mercaptan-nx156m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX156M-Tube-box-Combo-2024.jpg?v=1771749126</image:loc>
      <image:title>Ethyl Mercaptan in LP Gas - Range - 2.5-80 ppm NX156M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ammonia-nx108vl</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX108VL-Tube-box-Combo-2024.jpg?v=1771748441</image:loc>
      <image:title>Ammonia - Range - 0.2-20 ppm NX108VL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-nx117h</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX117H-Tube-box-Combo-2024.jpg?v=1771748980</image:loc>
      <image:title>Carbon Dioxide - Range - 1-20% NX117H</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-nx117m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX117M-Tube-box-Combo-2024.jpg?v=1771748980</image:loc>
      <image:title>Carbon Dioxide - Range - 0.1-5.2% NX117M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-nx169m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX169MH-Tube-box-Combo-2024.jpg?v=1771749127</image:loc>
      <image:title>Hydrogen Sulfide - Range - 25-2000 ppm NX169M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-nx169mh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX169MH-Tube-box-Combo-2024.jpg?v=1771749127</image:loc>
      <image:title>Hydrogen Sulfide - Range - 5-1600 ppm NX169MH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-nx117l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX117L-Tube-box-Combo-2024.jpg?v=1771748687</image:loc>
      <image:title>Carbon Dioxide - Range - 0.021-1% NX117L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ammonia-nx108m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX108MH-Tube-box-Combo-2024.jpg?v=1771749255</image:loc>
      <image:title>Ammonia - Range - 5-260 ppm NX108M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/benzene-nx111l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX111L-Tube-box-Combo-2024.jpg?v=1771748441</image:loc>
      <image:title>Benzene - Range - 0.1-75 ppm NX111L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/methyl-iodide-nx185l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX185L-Tube-box-Combo-2024.jpg?v=1771749255</image:loc>
      <image:title>Methyl Iodide - Range - 0.4-50 ppm NX185L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/benzene-nx111h</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX111H-Tube-box-Combo-2024.jpg?v=1771748441</image:loc>
      <image:title>Benzene - Range - 0.2-80 ppm NX111H</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nitrogen-oxides-nx196l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX196L-Tube-box-Combo-2024.jpg?v=1771748687</image:loc>
      <image:title>Nitrogen Oxides - Range - 0.5-30 ppm NX196L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nitrogen-dioxide-nx505</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX505-Tube-box-Combo-2024.jpg?v=1771749380</image:loc>
      <image:title>Nitrogen Oxide - Range - 0.01-0.2 ppm NX505</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-monoxide-nx119h</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX119H-Tube-box-Combo-2024.jpg?v=1771749380</image:loc>
      <image:title>Carbon Monoxide - Range - 5-2000 ppm NX119H</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-monoxide-nx119m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX119M-Tube-box-Combo-2024.jpg?v=1771748442</image:loc>
      <image:title>Carbon Monoxide - Range - 30-500 ppm NX119M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfur-dioxide-in-co2-nx211sb</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX211SB-Tube-box-Combo-2024.jpg?v=1771748980</image:loc>
      <image:title>Sulfur Dioxide in CO2 - Range - 0.1-25 ppm NX211SB</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/phosphine-nx204lm</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX204LM-Tube-box-Combo-2024.jpg?v=1771749379</image:loc>
      <image:title>Phosphine/Arsine - Range - 0.25-20 ppm NX204LM</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/chlorine-nx122h</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX122H-Tube-box-Combo-2024.jpg?v=1771748686</image:loc>
      <image:title>Chlorine - Range - 1-40 ppm NX122H</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/chlorine-nx122m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX122M-Tube-box-Combo-2024.jpg?v=1771748442</image:loc>
      <image:title>Chlorine - Range - 0.1-10.0 ppm NX122M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/bromine-nx112c</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX112C-Tube-box-Combo-2024.jpg?v=1771748441</image:loc>
      <image:title>Bromine - Range - 1-20 ppm NX112C</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/water-vapor-nx222l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX222L-Tube-box-Combo-2024.jpg?v=1771749127</image:loc>
      <image:title>Water Vapor - Range - 0.05-2 mg/L NX222L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-nx169vvh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX169VVH-Tube-box-Combo-2024.jpg?v=1771748442</image:loc>
      <image:title>Hydrogen Sulfide - Range - 2-20% NX169VVH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethanol-nx148vl</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX148VL-tube-box-2024_combo.png?v=1771748686</image:loc>
      <image:title>Ethanol - Range - 30-1000 ppm NX148VL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethanol-nx148vvl</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX148VVL-Tube-box-Combo-2024.jpg?v=1771749475</image:loc>
      <image:title>Ethanol - Range - 20-300 ppm NX148VVL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/acetaldehyde-nx101vl</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX101VL-Tube-box-Combo-2024.jpg?v=1771749379</image:loc>
      <image:title>Acetaldehyde - Range - 1-30 ppm NX101VL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbonyl-sulfide-nx121</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX121-Tube-box-Combo-2024.jpg?v=1771749255</image:loc>
      <image:title>Carbonyl Sulfide - Range - 5-60 ppm NX121</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/organic-gas-checker-nx197c</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX197C-Tube-box-Combo-2024-no-tube_1.png?v=1771749255</image:loc>
      <image:title>Organic Gas Checker - Range - Qualitative NX197C</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/oxygen-non-heating-type-nx198</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX198-Tube-box-Combo-2024.jpg?v=1771748443</image:loc>
      <image:title>Oxygen Non-Heating Type - Range - 1.5-24% NX198</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/oxygen-heating-type-nx198sa</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX198SA-Tube-box-Combo-2024.jpg?v=1771749479</image:loc>
      <image:title>Oxygen - Heating Type - Range - 2-24% NX198SA</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/oxygen-heating-type-nx198sb</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX198SB-Tube-box-Combo-2024.jpg?v=1771749425</image:loc>
      <image:title>Oxygen - Heating Type - Range - 2-24% NX198SB</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/oxygen-co2-separate-meas-nx199</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/Oxygen-CO2_Sep_Meas_NX199-1920w.jpg?v=1636525028</image:loc>
      <image:title>Oxygen-CO2 Separate Measurement - Range - O2: 2-10%; CO2: 1-20% NX199</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfide-ion-nx406h</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX406H-Tube-box-Combo-2024.jpg?v=1771748980</image:loc>
      <image:title>Sulfide Ion - Range - 2-1000 ppm NX406H</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/tert-butyl-mercaptan-nx188l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX188L-Tube-box-Combo-2024.jpg?v=1771749380</image:loc>
      <image:title>tert-Butyl Mercaptan - Range - 0.5-10.0 ppm NX188L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethyl-mercaptan-nx188l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX188L-Tube-box-Combo-2024.jpg?v=1771749380</image:loc>
      <image:title>Ethyl Mercaptan - Range - 0.5-10 ppm NX188L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/methyl-mercaptan-nx188l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX188L-Tube-box-Combo-2024.jpg?v=1771749380</image:loc>
      <image:title>Methyl Mercaptan - Range - 0.5-10 ppm NX188L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/propyl-mercaptan-nx188l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX188L-Tube-box-Combo-2024.jpg?v=1771749380</image:loc>
      <image:title>Propyl Mercaptan - Range - 0.5-10.0 ppm NX188L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-fluoride-nx166</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX166-Tube-box-Combo-2024.jpg?v=1771748157</image:loc>
      <image:title>Hydrogen Fluoride - Range - 0.17-30 ppm NX166</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ammonia-nx108mh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX108MH-Tube-box-Combo-2024.jpg?v=1771749255</image:loc>
      <image:title>Ammonia - Range - 50-900 ppm NX108MH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethyl-mercaptan-nx156mh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX156MH-Tube-box-Combo-2024.jpg?v=1771748157</image:loc>
      <image:title>Ethyl Mercaptan - Range - 1-160 ppm NX156MH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-conc-chart-meth-nx117cvl</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX117CVL-Tube-box-Combo-2024.jpg?v=1771747524</image:loc>
      <image:title>Carbon Dioxide - Range - 0.01-0.7% NX117CVL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-nx117vl</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX117VL-Tube-box-Combo-2024.jpg?v=1771747507</image:loc>
      <image:title>Carbon Dioxide - Range - 0.02-1.4% NX117VL</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/methanol-nx178l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX178L-Tube-box-Combo-2024.jpg?v=1771747492</image:loc>
      <image:title>Methyl Alcohol - Range - 20-1000 ppm NX178L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/water-vapor-nx222m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX222M-Tube-box-Combo-2024.jpg?v=1771747478</image:loc>
      <image:title>Water Vapor - Range - 1.7-33.8 mg/L NX222M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/formaldehyde-nx157m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX157M-Tube-box-Combo-2024.jpg?v=1771747467</image:loc>
      <image:title>Formaldehyde - Range - 1-35 ppm NX157M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/cyclohexanone-nx130</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX130-Tube-box-Combo-2024.jpg?v=1771747413</image:loc>
      <image:title>Cyclohexanone - Range - 2-100 ppm NX130</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/diisobutyl-ketone-nx184l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX184L-Tube-box-Combo-2024.png?v=1771747399</image:loc>
      <image:title>Diisobutyl Ketone - Range - 20-1000 ppm NX184L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/isopropyl-mercaptan-nx188l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX188L-Tube-box-Combo-2024.jpg?v=1771749380</image:loc>
      <image:title>Isopropyl Mercaptan - Range - 0.575-11.5 ppm NX188L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfide-ion-nx406l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX406L-Tube-box-Combo-2024.jpg?v=1771747369</image:loc>
      <image:title>Sulfide Ion - Range - 0.5-10 ppm NX406L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/gastec-sampling-pump-kit-gv-110-s-tr</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/Gastec_Pump02-1920w.jpg?v=1636654850</image:loc>
      <image:title>Gastec Deluxe Sampling Pump Kit GV-110-S</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/gastec-sampling-pump-w-thermal-ring-kit-gv-100-s-tr</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/Gastec_Kits_1-1920w.png?v=1639284708</image:loc>
      <image:title>Gastec Sampling Pump Kit GV-100-S</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/lubricant-grease-gv-100-2</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/SamplingDepot-logo-light_59631a83-6e52-4e1b-bb80-566c617201ad.jpg?v=1639289886</image:loc>
      <image:title>Lubricant / Grease GV-100-2</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/rubber-tube-holder-pkg-2-gv-100-3p1</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/SamplingDepot-logo-light_9d9cf3b3-d7af-40b8-b273-0111d5820f5b.jpg?v=1639289984</image:loc>
      <image:title>Gastec Rubber Tube Holder (pkg 2) GV-100-3P1</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/gastec-soft-leather-carrying-bag-gv-110-31</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/Gastec_CarryingCase_1-1920w.png?v=1639284921</image:loc>
      <image:title>Gastec Soft Leather Carrying Bag GV-110-31</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/inlet-clamping-nut-gv-201-p1</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/Gastec_INLETCLAMPINGNUT_1-1920w.png?v=1639284995</image:loc>
      <image:title>Inlet Clamping Nut GV-201-P1</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/one-hand-adapter-gv-700</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/NX-2200_Gastec_Photo_300px_43.jpg?v=1646425295</image:loc>
      <image:title>One-Hand Adapter For Gastec GV-100 GV-700</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/deluxe-tube-tip-breaker-722</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTipBreaker-1920w.png?v=1639284572</image:loc>
      <image:title>Deluxe Tube Tip Breaker For Gastec GV-100 722</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/telescoping-extension-pole-350bp</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTelescopeExtensionPole-1920w.png?v=1639284031</image:loc>
      <image:title>Telescoping Extension Pole For Gastec GV-100 350BP</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/diffuser-stainless-steel-90101</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX90101SSDiffuser.jpg?v=1709738598</image:loc>
      <image:title>Diffuser - (Stainless Steel) For Detector Tubes and Sampling Pumps NX90101</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hot-air-probe-340</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecHotAirProbe-1920w.png?v=1639284147</image:loc>
      <image:title>Hot Air Probe For Gastec GV-100 340</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hot-air-probe-holder-345a</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/ce6209ed-eb28-4c6b-a833-2bd6fa076bd5.png?v=1639284193</image:loc>
      <image:title>Hot Air Probe Holder For Gastec GV-100 345A</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/pyrotec-pyrolyzer-840</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecPyrotecPyrolyzer-1920w.png?v=1639284441</image:loc>
      <image:title>Pyrotec Pyrolyzer For Gastec GV-100 840</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/gastec-handbook-gv-100-shb</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecHandbookBlock-1920w.png?v=1639284591</image:loc>
      <image:title>Gastec Handbook For Gastec GV-100 GV-100-SHB</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nx-1000-pump-kit-nx-1000-130</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/gas-sampling-kit-standard-model-v08.jpg?v=1771495885</image:loc>
      <image:title>NX-1000 Pump Kit For Nextteq NX-1000 NX-1000-130</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/lubricant-grease-nx90113</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/BreakOutPages_NX01_1-1920w.png?v=1637120796</image:loc>
      <image:title>Lubricant / Grease For Nextteq NX-1000 NX90113</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/rubber-tube-inlet-pkg-2-nx90114</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/BreakOutPages_02_1-1920w.png?v=1637120955</image:loc>
      <image:title>Rubber Tube Inlet (pkg 2) For Nextteq NX-1000 NX90114</image:title>
      <image:caption></image:caption>
    </image:image>
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      <image:title>Air Flow Control Orifice for specific tubes For Nextteq NX-1000 NX90160</image:title>
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      <image:title>Tube Tip Cutter (Pkg 2) For Nextteq NX-1000 NX90139</image:title>
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      <image:title>10 Meter Extension Hose For Nextteq NX-1000 NX90147</image:title>
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      <image:title>20 Meter Extension Hose (for single tube applications) For Nextteq NX-1000 NX90148</image:title>
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      <image:title>20 Meter Extension Hose (for dual tube applications) For Nextteq NX-1000 NX90149</image:title>
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    <image:image>
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      <image:title>Telescoping Extension Pole for Nextteq NX-1000 NX90150</image:title>
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    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Hot Air Probe For Nextteq NX-1000 NX90151</image:title>
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    <image:image>
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      <image:title>VeriFit® - Irritant Smoke Generators (10 Pack) 50811000-310N</image:title>
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      <image:title>VeriFit® - Irritant Smoke Generators (6 Pack) 90095</image:title>
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      <image:title>Nextteq Irritant Smoke Tubes NX9501-5 (5 Tubes)</image:title>
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      <image:title>VeriAir Flex® 1-Liter Foil Sample Bag Ni Valve 31000</image:title>
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      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/veriair-1-liter-tedlar-31019-v01_1.png?v=1771727729</image:loc>
      <image:title>VeriAir Flex® 1-Liter Tedlar® Sample Bag 31019</image:title>
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      <image:title>VeriAir Flex® Foil 5 Liter Sampling Bag (Ni-Brass Valve) 31029</image:title>
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      <image:title>VeriAir Flex® 4-Liter Tedlar® Sample Bag 31047</image:title>
      <image:caption></image:caption>
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      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/FoldableRespriratorBoxandMask-1920w.png?v=1637207501</image:loc>
      <image:title>VeriFit N95 Respirator - Flat Fold (Box of 50) NX-N95FFAB-B50</image:title>
      <image:caption></image:caption>
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    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/single-gas-straight-front-NXSOnly-Color_H2S.jpg?v=1642013062</image:loc>
      <image:title>NXS Series Single Gas Detectors NX90201 Single Gas Detector (NXS-H2S)</image:title>
      <image:caption></image:caption>
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  <url>
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    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/single-gas-straight-front-NXSOnly-Color_CO.jpg?v=1642013043</image:loc>
      <image:title>NXS Series Single Gas Detectors NX90202 Single Gas Detector (NXS-CO)</image:title>
      <image:caption></image:caption>
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    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/single-gas-straight-front-NXSOnly-Color_O2.jpg?v=1642013028</image:loc>
      <image:title>NXS Series Single Gas Detectors NX90203 Single Gas Detector (NXS-O2)</image:title>
      <image:caption></image:caption>
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    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/single-gas-straight-front-NXSOnly-Color_SO2.jpg?v=1642013006</image:loc>
      <image:title>NXS Series Single Gas Detectors NX90204 Single Gas Detector (NXS-SO2)</image:title>
      <image:caption></image:caption>
    </image:image>
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  <url>
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    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/single-gas-straight-front-NXSOnly-Color_NH3_1.jpg?v=1642012967</image:loc>
      <image:title>NXS Series Single Gas Detectors NX90205 Single Gas Detector (NXS-NH3)</image:title>
      <image:caption></image:caption>
    </image:image>
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  <url>
    <loc>https://samplingdepot.com/products/single-gas-detector-nxs-h2-nx90206</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/single-gas-straight-front-NXSOnly-Color_H2.jpg?v=1642012937</image:loc>
      <image:title>NXS Series Single Gas Detectors NX90206 Single Gas Detector (NXS-H2)</image:title>
      <image:caption></image:caption>
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    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/single-gas-straight-front-NXSOnly-Color_NO2_1.jpg?v=1642012913</image:loc>
      <image:title>NXS Series Single Gas Detectors NX90207 Single Gas Detector (NXS-NO2)</image:title>
      <image:caption></image:caption>
    </image:image>
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    <loc>https://samplingdepot.com/products/nxs-docking-station-nx90225</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/NXS_Block03-1920w_05374fc6-423c-49e7-a67d-254674a05732.png?v=1639288158</image:loc>
      <image:title>NXS Docking Station NX90225</image:title>
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  <url>
    <loc>https://samplingdepot.com/products/pc-interface-nx90812</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/irlink4.png?v=1652987573</image:loc>
      <image:title>NX IR Link PC Interface NX90182</image:title>
      <image:caption></image:caption>
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  <url>
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    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/NXS_Block05-9ae00a9a-1920w.png?v=1639288383</image:loc>
      <image:title>Calibration Cup NX90209</image:title>
      <image:caption></image:caption>
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    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/NXSHatClip-3a170cd3-1920w.png?v=1639288443</image:loc>
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      <image:title>NXM Series Multi Gas Detectors NX90221 Multi Gas Detector (H2S, CO, O2, LEL - IR sensor)</image:title>
      <image:caption></image:caption>
    </image:image>
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  <url>
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      <image:caption></image:caption>
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      <image:title>NXM Series Multi Gas Detectors NX90213 Calibration Cup</image:title>
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    <loc>https://samplingdepot.com/products/nx-300-low-flow-constant-flow-sampling-pump-10-300-ml-nx-300-100</loc>
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      <image:title>NX-300-100 NX-300 Low Flow Constant Flow Sampling Pump 10-300 mL</image:title>
      <image:caption></image:caption>
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    <loc>https://samplingdepot.com/products/calgas-o2-18-0-n2-nx90214-58</loc>
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    <loc>https://samplingdepot.com/products/calgas-h2s-25ppm-o2-20-9-n2-nx90215-58</loc>
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    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/CalibrationGasCanister_02_ff70a149-a068-49d7-9dfe-77cdb818a4b1.jpg?v=1646768371</image:loc>
      <image:title>H2S 25ppm/O2 20.9%/N2 - Range - 58 Liters CalGas, P/N NX90215-58</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/calgas-co-100ppm-o2-20-9-n2-nx90216-58</loc>
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    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/CalibrationGasCanister_02.jpg?v=1646768310</image:loc>
      <image:title>CO 100ppm/O2 20.9%/N2 - Range - 58 Liters CalGas, P/N NX90216-58</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/calgas-nh3-50ppm-o2-20-9-n2-nx90217-58</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/CalibrationGasCanister_02_88186acb-04a3-4c72-a521-db4a4ccddd59.jpg?v=1646768390</image:loc>
      <image:title>NH3 50ppm/O2 20.9%/N2 - Range - 58 Liters CalGas, P/N NX90217-58</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/calgas-so2-10ppm-o2-20-9-n2-nx90218-58</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/CalibrationGasCanister_02_8ddb87a7-3cdb-4f93-851e-4a6c62a7282d.jpg?v=1646768444</image:loc>
      <image:title>SO2 10ppm/O2 20.9%/N2 - Range - 58 Liters CalGas, P/N NX90218-58</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/calgas-h2-500ppm-o2-20-9-n2-nx90219-58</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/CalibrationGasCanister_02_9b6cacd0-d581-4f7f-bfd8-043fb64e31aa.jpg?v=1646768328</image:loc>
      <image:title>H2 500ppm/O2 20.9%/N2 - Range - 58 Liters CalGas, P/N NX90219-58</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/calgas-no2-10ppm-o2-20-9-n2-nx90220-58</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/CalibrationGasCanister_02_7af19a92-f9da-4867-8a9a-c7b198041f32.jpg?v=1646768410</image:loc>
      <image:title>NO2 10ppm/O2 20.9%/N2 - Range - 58 Liters CalGas, P/N NX90220-58</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/airteq-kit-standard</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NextteqCBAKit.jpg?v=1723136998</image:loc>
      <image:title>Nextteq Compressed Breathing Air Deluxe Kit (Deluxe CBA Kit)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nx-300-belt-clip-case-nx90436</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/NX300_in_Case_Front_Left_01.jpg?v=1771578976</image:loc>
      <image:title>NX90436 NX-300 Belt Clip Case</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/spare-inlet-filter-element-5-pack-nx90168</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/NX-300_SpareInletFilter-f1475a38-1920w.png?v=1639286258</image:loc>
      <image:title>NX90168 Spare Inlet Filter Element (5 pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/tripod-mount-with-case-nx90438</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/NX-300_TripodMountwithCase-81f6a5c8-1920w.png?v=1636779196</image:loc>
      <image:title>NX90438 Tripod Mount with Case</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nextteq-mini-calibrator-1-6000-cc-min-nx90441</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/AP_Buck_Kit_02-09eaeaa7-2880w.png?v=1639286014</image:loc>
      <image:title>Nextteq Mini Calibrator 1-6000 cc/min NX90441</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/spare-calibration-soap-nx90439</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/Calibrator_01-2b7db423-1920w.png?v=1639286087</image:loc>
      <image:title>Spare Calibration Soap NX90439</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/spare-tubing-nx90440</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/Calibration_02-c5cf115b-1920w.png?v=1639286149</image:loc>
      <image:title>Spare Tubing NX90440</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-nx169vl</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/HydrogenSulfide_NX169VL-1920w_882ee1c8-8d93-4791-adbc-1f672d4f15ca.jpg?v=1636524979</image:loc>
      <image:title>Hydrogen Sulfide - Range - 0.5-40 ppm NX169VL2</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ammonia-nx108l-2</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX108L-Tube-box-Combo-2024.jpg?v=1771747246</image:loc>
      <image:title>Ammonia - Range - 1-200 ppm NX108L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/isopropyl-mercaptan-nx188l-05</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX146-Tube-box-Combo-2024-no-tube_1.png?v=1771747236</image:loc>
      <image:title>Isopropyl Mercaptan - Range - 0.5-10.0 ppm NX188L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/diffuser-std-910-02</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX90102CFDiffuser.jpg?v=1709739283</image:loc>
      <image:title>Diffuser - (Carbon Fiber) for Detector Tubes and Sampling Pumps - NX90102</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/verifit-n95-respirator-convex-style-p-n-nx-n95csr-b20-box-of-20</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/ConvexRespiratorBoxandRespirator-1920w.jpg?v=1639279675</image:loc>
      <image:title>VeriFit N95 Respirator Convex Style  (box of 20) NX-N95CSR-B20</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/epichlorohydrine-range-5-50-ppm-nx146</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX146-Tube-box-Combo-2024-no-tube_1.png?v=1771747236</image:loc>
      <image:title>Epichlorohydrine - Range - 5-50 ppm NX146</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-range-5-50-nx117vh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX117VH-tube-box-2024_combo.jpg?v=1771747194</image:loc>
      <image:title>Carbon Dioxide - Range - 5-50% NX117VH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethylene-oxide-range-50-1000-ppm-nx155h</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX155H-tube-box-2024_combo.jpg?v=1771747168</image:loc>
      <image:title>Ethylene Oxide - Range - 50-1000 ppm NX155H</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethylene-oxide-range-1-15-ppm-nx155l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX155L-Tube-box-Combo-2024.jpg?v=1771747153</image:loc>
      <image:title>Ethylene Oxide - Range - 1-15 ppm NX155L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethylene-oxide-range-5-100-ppm-nx155m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX155M-tube-box-2024_combo.jpg?v=1771747141</image:loc>
      <image:title>Ethylene Oxide - Range - 5-100 ppm NX155M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethylene-oxide-range-0-01-4-0-nx155vh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX155VH-Tube-box-Combo-2024-no-tube_1.png?v=1771747112</image:loc>
      <image:title>Ethylene Oxide - Range - 0.01-4.0% NX155VH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/monoethanol-amine-range-0-5-50-ppm-nx191</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX191-tube-box-2024_combo.jpg?v=1771747085</image:loc>
      <image:title>Monoethanol Amine - Range - 0.5-50 ppm NX191</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nitrogen-dioxide-range-0-5-30-0-ppm-nx194m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX194M-tube-box-2024.jpg?v=1771747070</image:loc>
      <image:title>Nitrogen Dioxide - Range - 0.5-30.0 ppm NX194M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/propylene-oxide-range-0-2-5-0-ppm-nx208l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX208L-Tube-box-Combo-2024-no-tube_1.png?v=1771747057</image:loc>
      <image:title>Propylene Oxide - Range - 0.2-5.0 ppm NX208L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/triethyl-amine-range-0-5-20-ppm-nx219</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX219-Tube-box-Combo-2024-no-tube_1.png?v=1771748687</image:loc>
      <image:title>Triethyl Amine - Range - 0.5-20 ppm NX219</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-monoxide-range-1-30-ppm-1lc</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.1LC_CarbonMonoxide_01crop.jpg?v=1646237370</image:loc>
      <image:title>Carbon Monoxide - Range - 1-30 ppm 1LC</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-range-10-100-2ht</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.2HT_CarbonDioxide_01crop.jpg?v=1646244337</image:loc>
      <image:title>Carbon Dioxide - Range - 10-100% 2HT</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-range-100-4000-ppm-2lc</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.2LC_CarbonDioxide_01crop.jpg?v=1646244879</image:loc>
      <image:title>Carbon Dioxide - Range - 100-4000 ppm 2LC</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulphide-range-1-40-4ht</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.4HT_HydrogenSulphide_01crop.jpg?v=1646244935</image:loc>
      <image:title>Hydrogen Sulphide - Range - 1-40% 4HT</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/iodine-range-0-2-12-ppm-9l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.9L_Iodine.jpg?v=1646245201</image:loc>
      <image:title>Iodine - Range - 0.2-12 ppm 9L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-cyanide-range-0-5-150-ppm-12l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.12L_HydrogenCyanide_01crop.jpg?v=1646245421</image:loc>
      <image:title>Hydrogen Cyanide - Range - 0.5-150 ppm 12L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-chloride-range-20-500-ppm-14m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.14M_HydrogenChloride_ddfae0b7-1059-4fcd-9980-ac56e44e63f1.jpg?v=1646424864</image:loc>
      <image:title>Hydrogen Chloride - Range - 10-1000 ppm 14M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfuric-acid-range-0-5-5-mg-m3-35</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.35_SulfuricAcid.jpg?v=1646245822</image:loc>
      <image:title>Sulfuric Acid - Range - 0.5-5 mg/m3 35</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/methanol-range-20-1000-ppm-111l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.111L_Methanol_01crop.jpg?v=1646245929</image:loc>
      <image:title>Methanol - Range - 20-1000 ppm 111L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethylene-oxide-range-0-4-550-ppm-163l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.163L_EthyleneOxide_01crop.jpg?v=1646246198</image:loc>
      <image:title>Ethylene Oxide - Range - 0.4-550 ppm 163L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/acetaldehyde-range-2-5-100-ppm-92m</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.92M_Front_01.jpg?v=1652382428</image:loc>
      <image:title>Acetaldehyde - Range - 2.5-100 ppm 92M</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-range-2-5-40-2hh</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.2HH_Front.jpg?v=1652382644</image:loc>
      <image:title>Carbon Dioxide - Range - 2.5-40% 2HH</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulphide-range-1-240-ppm-4l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.4L_Front.jpg?v=1652382834</image:loc>
      <image:title>Hydrogen Sulphide - Range - 1-240 ppm 4L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulphur-dioxide-range-1-25-200-ppm-5l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.5L_Front.jpg?v=1652383058</image:loc>
      <image:title>Sulphur Dioxide - Range - 1.25-200 ppm 5L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfur-dioxide-range-0-05-10-0-ppm-5lb</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.5Lb_Front.jpg?v=1652795944</image:loc>
      <image:title>Sulfur Dioxide - Range - 0.05-10.0 ppm 5LB</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nitrogen-oxides-range-2-5-200-ppm-10</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.10_Front.jpg?v=1652796335</image:loc>
      <image:title>Nitrogen Oxides - Range - 2.5-200 ppm 10</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nitrogen-oxides-range-5-625-ppm-11s</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.11S_Front.jpg?v=1652796480</image:loc>
      <image:title>Nitrogen Oxides - Range - 5-625 ppm 11S</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-disulfide-range-0-63-100-ppm-13</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.13_Front.jpg?v=1652796616</image:loc>
      <image:title>Carbon Disulfide - Range - 0.63-100 ppm 13</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hydrogen-sulfide-sulphur-dioxide-range-1-25-120-ppm-45s</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.45S_Front.jpg?v=1652797363</image:loc>
      <image:title>Hydrogen Sulfide &amp; Sulphur Dioxide - Range - 1.25-120 ppm 45S</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/methyl-mercaptan-range-0-25-140-ppm-71</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.71_Front.jpg?v=1652797752</image:loc>
      <image:title>Methyl Mercaptan - Range - 0.25-140 ppm 71</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/hexane-range-4-1200-ppm-102l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.102L_Front.jpg?v=1652797862</image:loc>
      <image:title>Hexane - Range - 4-1200 ppm 102L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/toulene-range-1-100-ppm-122l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.122L_Front.jpg?v=1652798150</image:loc>
      <image:title>Toluene - Range - 1-100 ppm 122L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/tetrachloroethylene-range-1-75-ppm-133l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.133L_Front.jpg?v=1652798325</image:loc>
      <image:title>Tetrachloroethylene - Range - 1-75 ppm 133L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/amines-range-0-5-10-ppm-180l</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/GastecTubeNo.180L_Front.jpg?v=1652798454</image:loc>
      <image:title>Gastec Amines Gas Detection Tube - Range - 0.5-10 ppm 180L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ready-go-hydration-original-strawberry-lemonade</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/Strawlemon-1920w_02-1920w.jpg?v=1700507999</image:loc>
      <image:title>Ready/Go® Hydration ORIGINAL STRAWBERRY LEMONADE</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ready-go-hydration-energy-blackberry-pomegranate</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/products/BlackberryPome-1920w_02-1920w.jpg?v=1700508023</image:loc>
      <image:title>Ready/Go® Hydration ENERGY BLACKBERRY POMEGRANATE</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/copy-of-ready-go%C2%AE-hydration-orange-mango</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/Orange-Mango_3-1920w.webp?v=1700507979</image:loc>
      <image:title>Ready/Go® Hydration ORANGE MANGO</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/copy-of-ready-go%C2%AE-hydration-watermelon-limeade</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/Watermelon-Lime-large-box-alone-angle-01-1920w.webp?v=1700508009</image:loc>
      <image:title>Ready/Go® Hydration WATERMELON LIMEADE</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/verifit%C2%AE-aerosol-generator-kit-bitrex%C2%AE</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/Bitrex.jpg?v=1691768872</image:loc>
      <image:title>VeriFit® Aerosol Generator Fit Test Kit - Bitrex® Solution NX90450</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ready-go%C2%AE-hydration-original-strawberry-lemonade-50-count-bags-5-pack</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/5PackBagsSL.png?v=1710952069</image:loc>
      <image:title>Ready/Go® Hydration ORIGINAL STRAWBERRY LEMONADE 50 Count Bags (5 Pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ready-go%C2%AE-hydration-orange-mango-50-count-bags-5-pack</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/5PackBagsOM.png?v=1710951982</image:loc>
      <image:title>Ready/Go® Hydration ORANGE MANGO 50 Count Bags (5 Pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ready-go%C2%AE-hydration-watermelon-limeade-50-count-bags-5-pack</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/5PackBagsWL.png?v=1710952146</image:loc>
      <image:title>Ready/Go® Hydration WATERMELON LIMEADE 50 Count Bags (5 Pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ready-go%C2%AE-hydration-energy-blackberry-pomegranate-50-count-bags-5-pack</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/5PackBagsBP.png?v=1710952036</image:loc>
      <image:title>Ready/Go® Hydration ENERGY BLACKBERRY POMEGRANATE 50 Count Bags (5 Pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nxi-airflow-test-kit</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/AirFlow-Test-Kit.png?v=1697643786</image:loc>
      <image:title>NXI Airflow Test Kit</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/nxi-airflow-smoke-tubes-refill</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/Airflow-product-in-use-01-DRAFT-01.jpg?v=1697644378</image:loc>
      <image:title>NXI Airflow Smoke Tubes Refill (5 Pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfur-dioxide-passive-dosimeter-tube</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX917-tube-box-2024_combo.png?v=1771749605</image:loc>
      <image:title>Sulfur Dioxide Passive Dosimeter Tube - Range - 10-600 ppm NX917</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/sulfur-dioxide-range-1-60-ppm-nx211lm</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX211LM-Tube-box-Combo-2024.jpg?v=1771747033</image:loc>
      <image:title>Sulfur Dioxide - Range - 1-60 ppm NX211LM</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ethyl-mercaptan-inline-propane-range-2-5-30ppm-nx156p-no-sampling-pump-required</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX156P-Tube-box-Combo-2024-no-tube_1.png?v=1771747018</image:loc>
      <image:title>Ethyl Mercaptan Inline Propane - Range - 2.5-30ppm NX156P *Sampling Pump Not Required*</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/copy-of-ready-go%C2%AE-hydration-original-strawberry-lemonade-50-count-bags-5-pack</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/Strawberry-Lemonade-50-pack_1.png?v=1710952544</image:loc>
      <image:title>Ready/Go® Hydration ORIGINAL STRAWBERRY LEMONADE 50 Count Bag (Single Pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/copy-of-ready-go%C2%AE-hydration-energy-blackberry-pomegranate-50-count-bags-5-pack</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/Blackberry-Pomegranate-50-pack_1.png?v=1710961603</image:loc>
      <image:title>Ready/Go® Hydration ENERGY BLACKBERRY POMEGRANATE 50 Count Bag (Single Pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/copy-of-ready-go%C2%AE-hydration-orange-mango-50-count-bags-5-pack</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/Oranage-Mango-50-pack_1.png?v=1710961773</image:loc>
      <image:title>Ready/Go® Hydration ORANGE MANGO 50 Count Bag (Single Pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/copy-of-ready-go%C2%AE-hydration-watermelon-limeade-50-count-bags-5-pack</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/Watermelon-Limade-50-pack_b3f282c3-bc81-4daf-aa44-c87a000891eb.png?v=1710961923</image:loc>
      <image:title>Ready/Go® Hydration WATERMELON LIMEADE 50 Count Bag (Single Pack)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ready-go%C2%AE-hydration-welcome-pack-20-bags-50-sticks-bag-4-different-flavors</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/Stack.png?v=1717505993</image:loc>
      <image:title>Ready/Go® Hydration Welcome Pack (20 bags - 50 sticks/bag) 4 Different Flavors</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/ready-go%C2%AE-hydration-welcome-pack-20-bags-50-sticks-bag-4-different-flavors-copy</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/ReadyGo-Hydration-boxe-silo.png?v=1717506294</image:loc>
      <image:title>Ready/Go® Hydration Variety Pack (4 boxes - 500 sticks/box) 4 Different Flavors</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-cba-tube-range-100-3000-ppm-nx801</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX801-Tube-box-Combo-2024-no-tube_1.png?v=1771746996</image:loc>
      <image:title>Carbon Dioxide CBA Tube - Range: 100 - 3000 ppm NX801</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-dioxide-cba-tube-range-100-3000-ppm-nx801-copy</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX802-tube-box-2024_combo.jpg?v=1771749471</image:loc>
      <image:title>Carbon Monoxide CBA Tube - Range: 2.5-100 ppm NX802</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/carbon-monoxide-cba-tube-range-2-5-100-ppm-nx802-copy</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX803-tube-box-2024_combo.jpg?v=1771746834</image:loc>
      <image:title>Oil Mist CBA Tube - Range: 0.3-5 mg/m3 NX803</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/oil-mist-cba-tube-range-0-3-5-mg-m3-nx803-copy</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX804-Tube-box-Combo-2024-no-tube_1.png?v=1771746821</image:loc>
      <image:title>Oxygen CBA Tube - Range: 2-24% ppm NX804</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://samplingdepot.com/products/oxygen-cba-tube-range-2-24-ppm-nx804-copy</loc>
    <lastmod>2026-06-30T12:49:31-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0606/0425/2412/files/NX805-tube-box-2024_combo.jpg?v=1771746808</image:loc>
      <image:title>Water Vapor CBA Tube - Range: 20-160 mg/m3 NX805</image:title>
      <image:caption></image:caption>
    </image:image>
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