CATEGORIES

    GB/T 25267-2010
    Determination of DDT in coatings

    GB/T 25267-2010 "Determination of DDT Content in Coatings" specifies the method for determining the content of DDT and its metabolites in coatings. The principle involves extracting the sample with an acetone-n-hexane mixed solvent, followed by purification, nitrogen blowing, and volume adjustment. Detection is performed using a gas chromatograph equipped with an electron capture detector (ECD), and quantification is carried out using the external standard method. The detection requires instruments such as a nitrogen evaporator, chromatographic column, and analytical balance, providing precise technical support for the environmental safety and quality control of coatings.

    This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
    Status Active
    CCS G50 ICS 87.040
    Release Date 2010-09-26 00:00:00 Implementation Date 2011-08-01 00:00:00

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