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GB/T 7492-1987 PDF English

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GB/T 7492-1987: Water quality. Determination of BHC and DDT. Gas chromatography
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GB/T 7492-1987English279 Add to Cart 3 days [Need to translate] Water quality. Determination of BHC and DDT. Gas chromatography

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Standard ID GB/T 7492-1987 (GB/T7492-1987)
Description (Translated English) Water quality. Determination of BHC and DDT. Gas chromatography
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Z16
Classification of International Standard 13.06
Word Count Estimation 8,86
Date of Issue 3/6/1987
Date of Implementation 8/1/1987
Issuing agency(ies) National Environmental Protection Agency
Summary This standard applies to surface water, groundwater, and part of the sewage BHC, DDT analysis. The water was extracted with petroleum ether standard BHC, DDT, after purification with electronic capture detector gas chromatography. When the instrument is not used at the same time, the range of different detection methods. ��-BHC usually detected to 4ng/L, DDT can be detected to 200ng/L. Organic samples organophosphorus pesticides, unsaturated hydrocarbons and phthalate esters in the electronic capture device also responds on the identification of these interfering substances can be used to get rid of concentrated sulfuric acid.

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