ISO 6889:1986 表面活性剂.用拉起液膜测定界面张力

标准编号：ISO 6889:1986

中文名称：表面活性剂.用拉起液膜测定界面张力

英文名称：Surface active agents — Determination of interfacial tension by drawing up liquid films

发布日期：1986-03

标准范围

通过以下方式进行测定:测量膜破裂前可施加的最大力，垂直施加在箍筋或环上的力，与放置在量杯中的两个不互溶液相之间的界面液膜接触，以拉起界面液膜。力必须通过最大值，否则测量无效。

The determination is carried out in the following way: Measurement of the maximum force which can be exerted before the film breaks, the force being exerted vertically on a stirrup or ring, in contact with he interfacial liquid film between two immiscible liquid phases placed in a measuring cup, in order to draw up the interfacial film. The force must pass through a maximum, otherwise the measurement is not valid.

标准预览图