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    ชุดทดสอบCOD Tube Test (400 – 4000 mg/L O2)


    Photometric determination of the COD

    Photometric determination of chromium(III) concentration after two hours of oxidation with potassium dichromate/sulphuric acid/silver sulphate at 148 °C
    The chemical oxygen demand of a water is determined by silver-catalysed oxidation with potassium dichromate/sulphuric acid at 148 °C during a two hour period.

    Data and ordering information

    REF 985 011
    Type tube test 0-11
    Range 400 – 4000 mg/L O2
    Sufficient for 20 determinations
    Shelf life at least 1 year at 15 – 25 °C
    Sea water suitability no

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