1.1本试验方法描述了测定表面活性剂无机硫酸盐含量的电位滴定程序。其旨在分析-烯烃磺酸盐、烷烃磺酸盐、醇硫酸盐、醇醚硫酸盐、烷基苯磺酸盐等。 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定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。 ====意义和用途====== 阴离子表面活性剂，如 1.1 ，通常用于洗涤剂配方中。其使用的可接受性取决于其纯度。通过本试验方法测量的硫酸盐含量可用于估计受试阴离子表面活性剂的纯度。

1.1 This test method describes a potentiometric titration procedure for determining the inorganic sulfate content of surfactants. It is intended for the analysis of -olefin sulfonates, alkane sulfonates, alcohol sulfates, alcohol ether sulfates, alkylbenzenesulfonates, and the like. 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. ====== Significance And Use ====== Anionic surfactants, such as those listed in 1.1 , commonly are used in detergent formulations. Their acceptability for use depends on their purity. Sulfate content, as measured by this test method, can be used to estimate the purity of an anionic surfactant under test.