ISO 6889:1986
Surface active agents; Determination of interfacial tension by drawing up liquid films

Standard No.

ISO 6889:1986

Release Date

1986

Published By

International Organization for Standardization (ISO)

Latest

ISO 6889:1986

Scope

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.

ISO 6889:1986 history

• 1986 ISO 6889:1986 Surface active agents; Determination of interfacial tension by drawing up liquid films
• 1982 ISO 6889:1982 Surface active agents — Determination of interfacial tension by drawing up liquid films