本文件规定了通过循环设备测定表面活性剂的起泡性和发泡度的方法，由此表面活性剂的溶液处于快速循环状态。 该方法适用于许多表面活性剂，特别是对于低和中等泡沫表面活性剂和含有表面活性剂的产品

This document specifies a method for the determination of foamability and degree of foamability of surface active agents by means of a circulation equipment, whereby the solution of the surface active agent is under fast circulation. The method is applicable to many surface active agents, especially for low and medium foaming surface active agents and products containing surface active agents.