This document specifies a method for the determination of the content of unsulfated matter present in ordinary commercial neutralized products of sulfation of ethoxylated alcohols or alkylphenols [alkyl oxyethylene sulfates (ethoxylated alcohol sulfates) or alkylphenol oxyethylene sulfates (ethoxylated alkyphenol sulfates)] containing an average of not more than 20 oxyethylene groups per molecule. The unsulfated matter is separated from a methanolic solution of the test portion on an ion-exchange column and is recovered from the eluate by evaporation and weighing of the residue.
DIN EN ISO 8799-2010由德国标准化学会 DE-DIN 发布于 2010-04。
DIN EN ISO 8799-2010 在中国标准分类中归属于: G72 表面活性剂基础标准与通用方法,在国际标准分类中归属于: 71.100.40 表面活性剂及其他助剂。
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