ISO 6889:1986 Preview

Surface active agents -- Determination of interfacial tension by drawing up liquid films

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

  • Current status : Published
    Publication date : 1986-03
  • Edition : 2
    Number of pages : 10
  • :
    ISO/TC 91
    Surface active agents
  • 71.100.40
    Surface active agents

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