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General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ??????

Professional Standard - Environmental Protection, ??????

Professional Standard - Chemical Industry, ??????

Professional Standard - Urban Construction, ??????

Professional Standard - Geology, ??????

中華人民共和國(guó)國(guó)家衛(wèi)生和計(jì)劃生育委員會(huì), ??????

中華人民共和國(guó)環(huán)境保護(hù)部, ??????

Professional Standard - Petrochemical Industry, ??????

YU-JUS, ??????

Korean Agency for Technology and Standards (KATS), ??????

British Standards Institution (BSI), ??????

SCC, ??????

  • NS-ISO 6595:1982 Water quality — Determination of total arsenic — Silver diethyldithiocarbamate spectrophotometric method

TR-TSE, ??????





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