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首批２５９项卫生国家标准发布（续）（续本刊１９９７年第３１卷第４期第２４２页）ＧＢ／Ｔ１６０３１－１９９５车间空气中氨的纳氏试剂分光光度测定方法ＧＢ／Ｔ１６０３２－１９９５车间空气中氧化氮的盐酸萘乙二胺分光光度测定方法ＧＢ／Ｔ１６０３３－１９９５车间...
First batch of 259 national standards for health (Continued) (Continuation of Volume 47, Issue 4, page 242) GB / T16031-1995 workshop Naphthalene reagent ammonia spectrophotometric method GB / T16032-1995 workshop Nitrogen oxide in air - Determination of naphthyl ethylenediamine hydrochloride spectrophotometric method GB / T16033-1995 Workshop ...