1.1本试验方法基于普通阴离子表面活性剂和阴离子表面活性剂与水滑石混合物的电位滴定。本试验方法仅用于分析以下表面活性剂中的活性物质:醇醚硫酸盐、α-烯烃磺酸盐、烷基苯磺酸盐/二甲苯磺酸钠混合物（5:1）、烷基苯磺酸钠/二甲苯磺酸钠混合物（16:1）和烷基苯磺酸钠/二甲苯磺酸钠混合物（22:1） 1). 尚未对表面活性剂配方进行测试。 1.2本标准无意解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全和健康实践，并确定监管限制的适用性。试剂和材料有材料安全数据表。使用前检查其危险性。

1.1 This test method is based on a potentiometric titration of common anionic surfactants and blends of anionic surfactant with a hydrotrope. This test method solely is intended for the analysis of active matter in the following surfactants: alcohol ether sulfate, alpha olefin sulfonate, alkylbenzene sulfonate/sodium xylene sulfonate blend (5:1), sodium alkylbenzene sulfonate/sodium xylene sulfonate blend (16:1), and sodium alkylbenzene sulfonate/sodium xylene sulfonate blend (22:1). It has not been tested for surfactant formulations. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.