BS 4258-3:1975被替代
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of sulphate content
出版：British Standards Institution
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基本信息
标准编号： BS 4258-3:1975
发布时间：1975/9/30 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：0
标准简介
Reduction of the sulphate in a test portion to sulphide, absorption of the evolved hydrogen sulphide in acetone and sodium hydroxide solution and titration with mercury (II) acetate using dithizone as indicator.
标准备注
© British Standards Institution 2013
等同采用的国际标准
ISO 2997:1974 - Equivalent
