Standard No.:	HG/T 2156-2009
English Name:	Determination of anionic surfactants in industrial circulating cooling water-Spectrophometric method using methylene blue
Chinese Name:	工业循环冷却水中阴离子表面活性剂的测定 亚甲蓝分光光度法
Chinese Classification:	G76    Basic standards and general methods for water treatment agent
Professional Classification:	HG    Professional Standard - Chemistry
ICS Classification:	71.040.40 71.040.40    Chemical analysis 71.040.40
Issued by:	Ministry of Industry and Information Technology
Issued on:	2009-12-4
Implemented on:	2010-6-1
Status:	valid
Superseding:	HG/T 2156-1991 Determination of anionic surface active agent in industrial circulating cooling water Methylene blue spectrophotometric method
Language:	English
File Format:	PDF
Word Count:	2500 words
Price(USD):	145.0
Delivery:	via email in 1~3 business day

本标准规定了测定工业循环冷却水中阴离子表面活性剂的方法。
本方法适用于含量为0.05mg/L～2.0mg/L工业循环冷却水中阴离子表面活性剂（统称为亚甲蓝活性物质）的测定。
本方法不适用于有机硫酸盐或磺酸盐等阴离子物质和季铵盐化合物等阳离子物质的浓度分别超过直链烷基苯磺酸钠浓度的15%和8%时阴离子表面活性剂的测定。