<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">
  <url>
    <loc>https://shop.waltron.net/nl</loc>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hydrazine-calibration-standard-1000ppm-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/HydrazineCalibrationStandard_1000ppm_1L.png?v=1752074018</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hydrazine-calibration-standard-100ppb-1-gal-4l-cube-calibration-kit</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/H12340587-HydrazineCalibrationStandard_100ppb_1Gal_4LCube_CalibrationKit.png?v=1752076123</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hydrazine-cell-recharge-gel-kit</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/H3500-415A-HydrazineCellRechargeGelKit.png?v=1752089360</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ammonium-hydroxide-reagent-grade-2-5l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N1234-116-AmmoniumHydroxicide-3.5L_1.png?v=1752076646</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-low-calibration-standard-100ppb-1-gal-4l-cube</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SodiumLowCalibrationStandard_100ppb_1Gal4LCubeBackgroundRemoved.png?v=1752072808</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-high-calibration-standard-1000ppb-1-gal-4l-cube</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SodiumHighCalibrationStandard_1000ppb_Red_1Gal4LCubeBackgroundRemoved.png?v=1752073620</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-electrode-regeneration-solution-2-oz</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/IMG_0321.jpg?v=1521749219</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/3-5m-kcl-reference-electrode-refill-kit</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N1234-548-3.5MKClReferenceElectrodeRefillKit.png?v=1752085150</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hardness-reagent-2-buffer-solution-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-092-HardnessReagent_2_BufferSolution_2L.png?v=1752089859</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hardness-calibration-standard-50ppb-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-093-HardnessCalibrationStandard_50ppb_2L.png?v=1752076010</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/dissolved-iron-reagent-1-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-094-DissolvedIronReagent_1_1L.png?v=1752179728</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/dissolved-iron-calibration-solution-150ppb-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-095A-DissolvedIronCalibrationSolution_150ppb_1L.png?v=1752179877</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-reagent-3-reducing-agent-2-5l-w1234-098e</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-098E-SilicaReagent_3_ReducingAgent_2.5L.png?v=1752086768</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-calibration-standard-200ppb-2-5l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SilicaCalibrationStandard_200ppb2.5L-NoBR2.png?v=1752073503</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/phosphate-calibration-standard-2ppm-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/PhosphateCalibrationStandard_2ppm_2L.png?v=1752073907</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/phosphate-calibration-standard-100ppm-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-108-PhosphateCalibrationStandard_100ppm_2L.png?v=1752075933</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/copper-reagent-1-copper-reducing-agent-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-120-CopperReagent_1_CopperReducingAgent_2L.png?v=1752087974</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/copper-reagent-2-copper-citrate-buffer-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-121-CopperReagent_2_CopperCitrateBuffer_2L.png?v=1752088054</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/copper-calibration-standard-50ppb-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-12350ppbCopperCalibration-2LBackgroundRemoved.png?v=1752072326</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/copper-reagent-3-copper-color-reagent-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-129-CopperReagent_3_CopperColorReagent_2L.png?v=1752088243</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-low-calibration-standard-100ppb-5-gal-20l-cube</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N1234-544-SodiumLowCalibration-100ppb-20LBackgroundRemoved.png?v=1752072630</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-high-calibration-standard-1000ppb-5-gal-20l-cube</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N1234-545-SodiumHighCalibration-1000ppb-20LBackgroundRemoved.png?v=1752072946</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/3-5-kcl-reference-electrode-filling-solution-2-oz</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N1234-547-3.5MKClReferenceElectrodeFillingSolution_2Oz.png?v=1752076829</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-reagent-1-sulfuric-molybdate-2-5l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-065E-SilicaReagent_1_Sulfuric_Molybdate_2.5L.png?v=1752086567</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-reagent-2-oxalic-acid-2-5l-w1234-097e</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-097E-SilicaReagent_2_OxalicAcid_2.5L.png?v=1752086651</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/copper-reagent-3-color-reagent-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-122-CopperReagent_3_ColorReagent_1L.png?v=1752088153</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/cation-resin-pre-rinsed-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-605-CationResin-Pre-Rinsed2L.png?v=1752088386</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/phosphate-blue-reagent-1-molybdate-sulfuric-acid-reagent-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-103-PhosphateBlueReagent_1_Molybdate_SulfuricAcidReagent_2L.png?v=1752180551</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/phosphate-blue-reagent-2-reducing-reagent-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/IMG_0368.jpg?v=1504116912</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ammonium-hydroxide-reagent-grade-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N1234-117-AmmoniumHydroxide_ReagentGrade_1L.png?v=1752076751</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-calibration-standard-100ppm-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-W566A-SilicaCalibrationStandard_100ppm_1L.png?v=1752075846</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/phosphate-calibration-standard-100ppm-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/PhosphateCalibrationStandard_100ppm_1L.png?v=1752074122</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-calibration-standard-200ppb-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-566-SilicaCalibrationStandard_200ppb_1L.png?v=1752075733</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-calibration-standard-2ppm-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SilicaCalibrationStandard_2ppm_1L.png?v=1752075498</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/dissolved-iron-standard-50ppb-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/DissolvedIronCalibrationStandard_50ppb_1L.png?v=1752075403</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/phosphate-calibration-standard-1ppm-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-055-PhosphateCalibrationStandard-1ppm-1L.png?v=1752073823</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hardness-reagent-1-hydrochloric-acid-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-091-HardnessReagent_1_HydrochloricAcid_2L.png?v=1752089640</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/copper-calibration-standard-1-5ppm-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/CopperCalibrationStandard_1.5ppm_2L.png?v=1752075299</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/copper-calibration-standard-25ppb-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/CopperCalibrationStandard_25ppb_2L.png?v=1752075221</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-calibration-standard-75ppm-2-5l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SilicaCalibrationStandard_75ppm_2.5L.png?v=1752075059</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-calibration-standard-150ppm-2-5l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SilicaCalibrationStandard_150ppm_2.5L.png?v=1752074863</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hydrazine-cell</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/H3010-165-HydrazineCell.png?v=1752089245</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/oxygen-sensor-kit</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/OxygenSensorKit_K3010-161A_WaltronDO.png?v=1752087413</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/dissolved-oxygen-sensor-full-body-complete</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/DissolvedOxygenSensor_K3010-200_FullBody_Complete.png?v=1752087487</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/3-5m-reference-electrode-w-bnc-connector</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N3010-171B-3.5MReferenceElectrodew_BNCConnector.png?v=1752085246</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/refillable-reference-electrode-with-side-arm-84mm</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N3010-174-RefillableReferenceElectrodeWithSideArm_84mm.png?v=1752085529</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-measuring-probe-80mm-pg-13-5</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N3010-177-SodiumMeasuringProbe.png?v=1752085734</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-bundle-w1234-096e-097e-098e-099e</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W2000-001-Silica_Bundle_-_W1234-096E_097E_098E_099E.png?v=1752086881</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ldo-zero-point-calibration-kit</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/K6000-101.-LDOZero-PointCalibrationKit.png?v=1752087585</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/consumables-kit-3040-series-peristaltic-version</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W3040-001-ConsumablesKit.png?v=1752087179</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ethylene-glycol-reagent-1-periodic-acid-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-046-EthyleneGlycolReagent_1_PeriodicAcid_1L.png?v=1752088564</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ethylene-glycol-reagent-2-potassium-hydroxide-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-047-EthyleneGlycolReagent_2_PotassiumHydroxide_1L.png?v=1752088808</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ethylene-glycol-reagent-3-potassium-persulfate-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-048-EthyleneGlycolReagent_3_PotassiumPersulfate_1L.png?v=1752088966</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodalime-cartridge-filled</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-606A-SodalimeCartridge_Filled.png?v=1752088454</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ethylene-glycol-reagent-4-set-w-dry-purpald-color-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-049L-Ethylene_Glycol_Reagent_4_Set_w_Dry_Purpald_Color_1L.png?v=1752089056</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ethylene-glycol-standard-8-ppm-1-l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-0500NoBR.png?v=1752074752</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ethylene-glycol-standard-75-ppm-1l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/EthyleneGlycolCalibrationStandard_75ppm_1L-NoBR.png?v=1752074546</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/special-handling</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/Speical.jpg?v=1521490303</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-bundle-n1234-116-540-541-548-special-handling</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/2000-004-SODIUMBUNDLE-N1234-116_540_541_548_SPECIALHANDLING.png?v=1752085400</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/iron-bundle-w1234-094-095</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W2000-003-Dissolved_Iron_Bundle_-_W1234-094_095.png?v=1752179990</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hardness-bundle-w1234-091-092-093-special-handling</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W2000002-Hardness_Bundle_-_W1234-091_092_093.png?v=1752090184</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-spare-parts-kit</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/N3500-325_sm.jpg?v=1520544002</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sensor-spot</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/K5000-010-SensorSpotfor9065LDOAnalyzer.png?v=1752087655</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/kit-9060-retubing</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/K3500-356KIT_9060_61_62RE-TUBING.png?v=1752087737</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/kit-tubing-oring-9071</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/P2000-017_sm-KIT_TUBING_O_RING_9071.png?v=1752089432</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/tubing-kit-complete-9033</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/P2000-050-TubingKit.png?v=1752085615</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/tubing-kit-complete-9032x</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/P2000-049-TUBINGKIT_COMPLETE_9032X_1f593e80-075e-472e-8965-9f69f88e6a28.png?v=1752085814</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/phosphate-calibration-standard-1-ppm-swan-compatible</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-709-Molybdo-VanadateReagentforSwanAMIPhosphateHL_2L.png?v=1752515056</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-reagent-1-for-swan-ami-moybdate-swan-compatible</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-705-SilicaReagent_1Moybdate_forSwanAMISilicaorSilitraceanalyzer_2L.png?v=1752516878</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sulfuric-acid-reagent-1-for-swan-ami-silica-analyzer-2-liter</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-706-SulfuricAcidReagent_2forSwanAMISilicaorSilitraceanalyzer_2Liter.png?v=1752516788</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/oxalic-acid-reagent-3-for-swan-ami-silica-analyzer-2-liter</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-707-OxalicAcidReagent_3forSwanAMISilicaorSilitraceanalyzer_2Liter.png?v=1752516716</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/oxalic-acid-reagent-3-for-swan-copra-silica-analyzer-10-liter</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-703-OxalicAcidReagent_3forSwanCOPRASilicaanalyzer_10Liter.png?v=1752516632</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/molybdate-reagent-2-for-swan-copra-silica-analyzer-10-liter</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-702-MolybdateReagent_2forSwanCOPRASilicaanalyzer_10Liter.png?v=1752516563</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sulfuric-acid-reagent-1-for-swan-copra-silica-analyzer-10-liter</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-701-Sulfuric_Acid_Reagent_1_for_Swan_COPRA_Silica_analyzer_10_Liter.png?v=1752516385</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/fas-reagent-4-for-swan-copra-silica-analyzer-10-liter</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-704-FAS_Reagent_4_for_Swan_COPRA_Silica_analyzer_10_Liter.png?v=1752516229</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/swan-ami-phosphate-hl-reagent-set</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-709-w1234-055-Reagent_Set_for_Swan_AMI_Phosphate_HL_-_One_Month_Supply_A-85.420.760.png?v=1752515976</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/swan-ami-silica</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-810-Reagent_Set_for_Swan_AMI_Silica_and_Silitrace_A-85.420.560.png?v=1752515832</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/fas-reagent-4-for-swan-ami-silica-analyzer-2-liter</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-708-FAS_Reagent_4_for_Swan_AMI_Silica_or_Silitrace_analyzer_2_Liter.png?v=1752515486</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/swan-copra-older-model-silica-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/A-85.420.130-Reagent_Set_for_Swan_COPRA_Silica_analyzer_compatible.png?v=1752515340</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/dipa-di-isopropylamine-99-4l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/DIPA_4L_image_sm.jpg?v=1527781681</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/tubing</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N106231-Tubing_PE_Lined_4.0mm_OD_x_2.5mm_ID_x_50m.png?v=1752515192</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/oil-in-water-analyzer-waltron-2410</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/2410-Oil-in-Water-Analyzer.jpg?v=1603488207</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3141-silica-analyzer-0-1000ppb</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3141SilicaAnalyzer.png?v=1752087302</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3042-phosphate-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3142_with_border.png?v=1741875559</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3144-hydrazine-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3144ColormetricHydrazineAnalyzer.png?v=1752089486</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3145-dissolved-copper-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3145DissolvedCopperAnalyzer.png?v=1752088307</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3146-ammonia-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3146_with_border.png?v=1741877095</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3148-dissolved-iron-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3148DissolvedIronAnalyzer.png?v=1752180386</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3149-ethylene-glycol-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3149Ethylene_PropyleneGlycolAnalyzer.png?v=1752089135</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3151-hardness-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3151CalciumHardnessAnalyzer.png?v=1752179613</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3152-disinfectants-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3152_with_border.png?v=1741873047</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3154-filming-amines-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3154_with_border.png?v=1741722577</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9131c-sodium-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/9131C_SodiumAnalzyer-Compact.png?v=1752085926</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-90313x-sodium-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9033XNew.jpg?v=1655235931</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9096-degas-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9096Analyzer.png?v=1599845987</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9095-multi-conductivity-ph-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9095MultiConSingle_New.jpg?v=1599846453</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-6051-total-hardness-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/6051EnclosurewithWaltronMembranecrop.png?v=1602792389</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-4165p-portable-luminescent-dissolved-oxygen-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron_4165P_No_Background_1.png?v=1752076244</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9091-dissolved-hydrogen-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9091.jpg?v=1602794962</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9092-free-chlorine-analyzer-with-ph-sensor</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9092ChlorineAnalyzer.jpg?v=1602795675</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9072-hydrazine-analyzer-potentiostatic</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9091_f1e2f758-09c5-4560-8e0e-2cba5d8eb966.jpg?v=1602796066</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-quoted-shipping</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9165-luminescent-dissolved-oxygen-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/Waltron9165Transmitter.png?v=1676666207</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9165s-luminescent-dissolved-oxygen-smart-sensor</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/9165S_LDO_Smart_Sensor_Photo_213d0bf1-523c-4610-80bb-c064ee1f9f38.png?v=1752087807</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-zero-oxygen-water-k6000-112</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Zerooxygen-200ml.png?v=1752071955</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/copy-of-waltron-zero-oxygen-water-4-pack-of-200ml-bottles</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Zero_Oxygen_4pack_-_no_br.png?v=1752071702</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9135-sodium-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron9135SodiumAnalyzer.png?v=1752086000</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/4000-ph-ph-and-orp-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-Series-Transmitter-Showing-pH.png?v=1744637329</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/4000-ec-electrodeless-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-Series-Transmitter-1024x1024-1.png?v=1744638452</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/4000-sc-specfic-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-Series-Transmitter-1024x1024-1.png?v=1744638452</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/4095-multi-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4095_Screen.jpg?v=1745444526</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/4000-dc-degas-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-DC_c4dc4c15-c4d0-4f79-bd71-3c2db367a38a.png?v=1744654100</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/3040-series-wet-section-upgrade-kit</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3040_WS_JG2.png?v=1749657432</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-4000-do-single-channel-ldo-analyzer-transmitter-only</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-Series-Transmitter-1024x1024-1.png?v=1744638452</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/9010-sequencer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/9010-sequencer.webp?v=1746564538</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/soft-sided-carrying-case</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/G-MIXERBAG-1212_FRONT_RT.jpg?v=1747143307</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/data-logging-usb-stick</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/easylog-data-logger-EL-USB-4-Straight.png?v=1747143670</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/replacement-oxygen-impermeable-hoses-4165p-ldo</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/ReplacementHoses.png?v=1747146469</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/replacement-oxygen-impermeable-hose-4165p-ldo-3-8</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/ReplacementHoses.png?v=1747146469</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/4073-multi-sensor-analyzer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4073Multi-Sensor.jpg?v=1745446200</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/conductivity-sensor-cmc15-cc-0-01-cm-with-flowcell-assembly</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SensorandFlowCellAssembly.png?v=1751467996</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/conductivity-sensor-cmc34-cc-0-01-cm-with-flowcell-assembly</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/CMC34_5db4d7d2-8ba3-42ca-81c4-a6c2b4e8233c.png?v=1751469926</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/conductivity-sensor-cmc34-cc-0-1-cm-with-flowcell-assembly</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/CMC34_5db4d7d2-8ba3-42ca-81c4-a6c2b4e8233c.png?v=1751469926</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/conductivity-sensor-cmc34-cc-10-0-cm-with-flowcell-assembly</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/CMC34_5db4d7d2-8ba3-42ca-81c4-a6c2b4e8233c.png?v=1751469926</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/conductivity-sensor-cmc34-cc-1-0-cm-with-flowcell-assembly</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/CMC34_5db4d7d2-8ba3-42ca-81c4-a6c2b4e8233c.png?v=1751469926</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-electrode-regeneration-solution-1-litre</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-ClearSolution-1L.png?v=1751475988</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-low-calibration-standard-100ppb-1-gal-4l-cube-copy</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-SodiumStandard-4LCube.png?v=1751476527</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/3-5m-kcl-reference-electrode-filling-solution-2-oz-copy</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-ReferenceElectronSolution-2oz.png?v=1751477022</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/dipa-di-isopropylamine-for-swan-analyzers-1-litre-bottle</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/GenTemp.png?v=1761747835</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/dipa-di-isopropylamine-for-swan-analyzers-6-1-litre-bottles</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Generic6pack.png?v=1761747649</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/dipa-di-isopropylamine-for-thermo-fisher-6-800-ml-bottles</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Generic6pack.png?v=1761747649</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sodium-spare-parts-kit-copy</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N3500-325-Sodium-Spare-Parts-Kit.jpg?v=1751480972</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ami-phosphate-ii-reagent-1-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-PhosphateReagent1-2L.png?v=1751482231</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/ami-phosphate-ii-reagent-2-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-Phophate-Reagent2-2ML.png?v=1751482449</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/swan-copra-siliica-reagent-set-4-x-10-litre-bottles</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-800-4x10LBottles.png?v=1751552165</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/phosphate-p-1-reagent</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-ClearSolution-1L_0a573095-a4b3-4a4e-bf7c-68d3264c977b.png?v=1751553324</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/phosphate-p-2-reducing-agent</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-ClearSolution-1L_0a573095-a4b3-4a4e-bf7c-68d3264c977b.png?v=1751553324</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-si-1-reagent</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-ClearSolution-1L_0a573095-a4b3-4a4e-bf7c-68d3264c977b.png?v=1751553324</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-si-b-reducing-agent</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-ClearSolution-1L_0a573095-a4b3-4a4e-bf7c-68d3264c977b.png?v=1751553324</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/calcium-buffer</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-ClearSolution-1L_0a573095-a4b3-4a4e-bf7c-68d3264c977b.png?v=1751553324</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/std-edta-titrant-0-02-n-edta</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-ClearSolution-10L.png?v=1751555275</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/std-edta-titrant-0-02-n-edta-copy</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-ClearSolution-10L.png?v=1751555275</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hach-biotector-acid-reagent-w-catalyst-20l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-20LCube.png?v=1751555626</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/hach-biotector-base-reagent-20l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron-20LCube.png?v=1751555626</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/pelican-durable-carrying-case</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4165p-HardPelicanCase.jpg?v=1758636192</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/reagent-set-for-swan-ami-siltrace-a-85-420-860</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-813-SwanSiltraceReagentKit-TempImage.png?v=1760622541</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/silica-reagent-1-moybdate-for-swan-ami-siltrace-analyzer-swan-compatible-2l</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SiltraceReagent1.png?v=1760626058</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/sulfuric-acid-reagent-2-for-swan-ami-siltrace-analyzer-2-liter-copy</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SiltraceReagent2.png?v=1760626355</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/oxalic-acid-reagent-3-for-swan-ami-siltrace-analyzer-2-liter</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SiltraceReagent3.png?v=1760626501</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/reducing-reagent-4-for-swan-ami-siltrace-analyzer-2-liter</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SiltraceReagent4.png?v=1760626629</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-4000-sc-specific-conductivity-analyzer-high-voltage</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-Series-Transmitter-1024x1024-1.png?v=1744638452</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/refillable-reference-electrode-with-side-arm-84mm-copy</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4010-003.png?v=1766499909</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/4010-003-in-line-cartridge-holder-with-flow-cells-copy</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/ImageNA.png?v=1766500447</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9096-degas-conductivity-analyzer-copy</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9096Analyzer.png?v=1599845987</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-3054-filming-amines-analyzer-new-with-wet-section-upgrade</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3054-FilimingAmines.png?v=1766501728</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/4010-002-in-line-cartridge-holder-with-single-channel-channel-flow-cell</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/ImageNA.png?v=1766500447</image:loc>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/nl/products/waltron-9091-dissolved-hydrogen-analyzer-copy</loc>
    <lastmod>2026-06-09T15:56:19-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9091C.jpg?v=1602794962</image:loc>
    </image:image>
  </url>
</urlset>
