Standard No.:	GB/T 7380-1995
English Name:	Surface active agents and detergents－Determination of water content－Karl Fischer method
Chinese Name:	表面活性剂和洗涤剂 含水量的测定 卡尔.费休法
Chinese Classification:	G72    Basic standards and general methods for surface active agent
Professional Classification:	GB    National Standard
ICS Classification:	71.100.40 71.100.40    Surface active agents 71.100.40
Issued by:	STSB
Issued on:	1995-01-02
Implemented on:	1996-8-1
Status:	superseded
Superseded by:	GB/T 11275-2007 Surface active agents—Determination of water content
Superseded on:	2008-2-1
Abolished on:	2008-02-01
Superseding:	GB 7380-1987 Surface active agents--Determination of water content--Karl Fischer method
Language:	English
File Format:	PDF
Word Count:	2500 words
Price(USD):	224.00
Delivery:	via email in 1~3 business day

本标准规定了用卡尔・费休试剂测定表面活性剂和洗涤剂中含水量的方法。本标准适用于粉状、浆状及溶液的产品。对于含水量低于1%（m/m）的试样，本法是采用的唯一方法。若试样含有碱金属硅酸盐、碳酸盐、氢氧化物和硼酸盐，碱性化合物与卡尔・费休试剂反应，得到偏高的测定值。在测定前应先分析试样中的碱金属盐。