Reference number
ISO 6889:1986
© ISO 2024
International Standard
ISO 6889:1986
Surface active agents — Determination of interfacial tension by drawing up liquid films
Edition 2
1986-03
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Published (Edition 2, 1986)
This publication was last reviewed and confirmed in 2024. Therefore this version remains current.

ISO 6889:1986

Language
Format
CHF 63
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 1986-03
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 2
    Number of pages
     : 10
  • Technical Committee :
    ISO/TC 91
    ICS :
    71.100.40 
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