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  • 12842

    For accuracy checks in copper determinations.

    更新时间:2026-05-27
    产品型号:
    浏览量:835
  • 2833149

    Wastewater Influent Inorganics Quality Control Standard. Ready to use; no dilutions required. Mixed standard contains: Ammonia Nitrogen 15 mg/L NH3-N, Nitrate Nitrogen 10 mg/L NO3--N, COD: 500 mg/L. P

    更新时间:2026-05-27
    产品型号:
    浏览量:708
  • 2602853

    For accuracy checks in determinations by the Platinum-Cobalt Standard Method. Hach Method 8025. 15 platinum-cobalt units. 1 Liter Bottle

    更新时间:2026-05-27
    产品型号:
    浏览量:1158
  • 257849

    For accuracy checks in sulfate determinations

    更新时间:2026-05-27
    产品型号:
    浏览量:818
  • 2343267

    For spectrophotometer wavelength checks.

    更新时间:2026-05-27
    产品型号:
    浏览量:741
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