Standard No.:	GB/T 7385-1994
English Name:	Non－ionic Surface active agents - Polyethoxylated derivatives－Iodometric determination of oxyethylene groups
Chinese Name:	非离子型表面活性剂 聚乙氧基化衍生物中氧乙烯基含量的测定 碘量法
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:	AQSIQ
Issued on:	1994-1-2
Implemented on:	1995-10-1
Status:	superseded
Superseded by:	GB/T 7385-2012 Non-ionic surface active agents - Polyethoxylated derivatives - Iodometric determination of oxyethylene groups
Superseded on:	2013-8-1
Superseding:	GB 7385-1987 Surface active agents--Ethylene oxide adducts--Iodometric determination of oxyethylene groups
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	304.00
Delivery:	via email in 1 business day

1 Scope



This Standard specifies a method for the iodometric determination of oxyethylene groups in polyethoxylated non-ionic surface active agents.

This Standard is applicable to the analysis of polyethoxylated derivatives of primary saturated fatty alcohols, oleyl alcohol, saturated fatty acids, straight and branched chain alkylphenols. It is also applicable in the presence of unreacted alcohols, fatty acids or alkylphenols of the types mentioned above.

This Standard is not applicable in the presence of: compounds containing sulfur or nitrogen; compounds containing oxygen or halogen atoms on adjacent carbon atoms other than as oxyethylene groups, for example compounds containing oxypropylene groups; aldehydes or acetals; sterols and derivatives.