GB/T 5560-2003 in English

《GB/T 5560-2003非离子表面活性剂 聚乙二醇含量和非离子活性物（加成物）含量的测定 Weilbull法》由TC63（全国化学标准化技术委员会）归口，TC63SC8（全国化学标准化技术委员会(特种)界面活性剂分会）执行，主管部门为中国石油和化学工业联合会。
本标准规定了测定脂肪醇及烷基酚的乙氧基化衍生物中的聚乙二醇含量和非离子活性物(加成物)含量的方法。
本标准适用于含2-80个氧乙烯基的加成数的非离子表面活性剂。

Scope

This standard specifies the method for determining the content of polyethylene glycol and non-ionic active substances (adducts) in fatty alcohols and ethoxylated derivatives of alkylphenols. The Weilbull method can determine both non-ionic active substances (adducts) and polyethylene glycol content. This standard applies to nonionic surfactants with addition numbers of 2 to 80 oxyethylene groups. The corresponding molecular formula (1) and molecular formula (2) of alkyl polyethoxylate are as follows: RO(CH2CH20)nOH…………………………………………………… …………………(1) R---o(cH2CH20)nOH……………………………………………………………………………………………………………………………………………………………………………………… In (2) where: n— ——is the average number of oxyethylene groups on the polyoxyethylene chain in the molecule; R——R in the molecular formula (1) is a linear or branched alkyl group, usually C10-C18; R——in the molecular formula (2) R is a branched alkyl group, usually nonyl or octyl.