BS 4651-4:1988现行
Ammonia solution. Method for determination of residue after heating at 850C
出版：British Standards Institution
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基本信息
标准编号： BS 4651-4:1988
发布时间：1988/8/31 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：8
标准简介
Applicable to ammonia solutions of concentrations within the range 25% to 35%, by mass, and with a residue after heating of not less than 3 mg/kg.
标准备注
© British Standards Institution 2013
本标准替代的旧标准
