Standard No.:	GB/T 12737-1991
English Name:	Chemical products for industrial use－General method for determination of traces of sulfate by reduction and titrimetry
Chinese Name:	化工产品中痕量硫酸盐测定的通用方法 还原滴定法
Chinese Classification:	G10    Inorganic chemicals in general
Professional Classification:	GB    National Standard
ICS Classification:	71.040.40 71.040.40    Chemical analysis 71.040.40
Source Content Issued by:	CSBTS
Issued on:	1991-02-09
Implemented on:	1992-2-1
Status:	superseded
Superseded by:	GB/T 12737-2008 Chemical products for industrial use-General method for determination of traces of sulphur compounds as sulphate by reduction and titrimetry
Superseded on:	2008-9-1
Abolished on:	2008-09-01
Target Language:	English
File Format:	PDF
Word Count:	4500 words
Translation Price(USD):	130.0
Delivery:	via email in 1~3 business day

本标准规定了化工产品中痕量硫酸盐测定的通用方法。本方法适用于所取试料或试验溶液中硫酸根含量为4.5~450μg。所取试验溶液中水含量不超过2mL。其他离子的允许限量见附录A。应用本方法时，产品中的硫应以硫酸根形式存在。对于含其他硫化合物的样品应进行适当的预处理，使转化为硫酸根。