GB/T 7463-2008 in English

本标准首次发布于１９８７年，本次为第一次修订。本标准代替ＧＢ／Ｔ ７４６３—１９８７《表面活性剂　钙皂分散力的测定　酸量滴定法（改进的Ｓｃｈｅｎｆｅｌｄｔ法）》。本标准规定了一种酸量滴定法，以测定使至少95%的钙皂完全分散保持1h所需的分散剂最低量。本标准适用于所有类型的表面活性剂，只要这些表面活性剂不干扰钙皂的酸量滴定即可，但不应存在碱性无机盐，例如磷酸盐、碳酸盐和硅酸盐等。

Scope

This standard specifies an acid titration method to determine the minimum amount of dispersant (surfactant, the same below) required to keep at least 95% of the calcium soap completely dispersed for 1 hour. This standard is applicable to all types of surfactants, as long as these surfactants do not interfere with the acid titration of calcium soap, but there should be no basic inorganic salts, such as phosphate, carbonate and silicate.