GB 12374-90

Standard method for determination of nitrate in air of residential areas — Cadmium column reduction–N-(1-naphthyl)ethylenediamine dihydrochloride spectrophotometric method

居住区大气中硝酸盐检验标准方法镉柱还原－盐酸萘乙二胺分光光度法

Standard Type

GB

ICS

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CCS

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Implementation

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