GB/T 6366-1992 in English

《GB/T 6366-1992表面活性剂 无机硫酸盐含量的测定 滴定法》由606（中国石油和化学工业联合会）归口，主管部门为中国石油和化学工业联合会。
本标准规定了表面活性剂中无机硫酸盐含量的测定方法。本标准适用于含有硫酸钠、硫酸铵、烷醇胺、硫酸盐的阴离子表面活性剂。本标准不适用于含有在试验条件下会生成微溶铅盐的其他化合物。如磷酸盐或多量氯化物的产品，也不适用于会妨碍准确调节pH值的含有多量弱酸盐（例如：肥皂或丁二酸单酯磺酸盐）的产品。

Scope

This standard specifies the method for the determination of inorganic sulfate content in surfactants. This standard applies to anionic surfactants containing sodium sulfate, ammonium sulfate, alkanolamines, and sulfates. This standard does not apply to products containing other compounds that form sparingly soluble lead salts under the test conditions, such as phosphates or large amounts of chloride, nor does it apply to products containing large amounts of weak salts (such as soaps) that would prevent accurate pH adjustment. or succinate monoester sulfonate) products.