Standard Number: HJ 479-2009(HJ479-2009)
Chinese:环境空气 氮氧化物（一氧化氮和二氧化氮）的测定 盐酸萘乙二胺分光光度法
English:Determination of nitrogen oxides (nitric oxide and nitrogen dioxide) in ambient air Naphthylenediamine hydrochloride spectrophotometric method
Effective Date:2009-11-01
Standard Applicability:
PDF Downloadable: Y
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