GB/T 12374-1990
AbolishedStandard method for examination of nitrate in air of residential areas--Reduction of the cadmium column--Spectrophotometry of N-(1-naphthyl) ethylene diaminehydrochloride
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
Application Summary AI generated
This standard specifies a method for measuring nitrate concentrations in the air of residential areas using cadmium column reduction followed by spectrophotometric detection with N-(1-naphthyl) ethylene diamine dihydrochloride. It is applied in environmental monitoring and public health contexts to assess air quality in urban residential zones, particularly for evaluating particulate matter pollution and its potential health impacts. The method is used by environmental protection agencies and testing laboratories for routine surveillance of ambient air nitrate levels.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.