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Homepage>ISO Standards>ISO 6889:1986-Surface active agents — Determination of interfacial tension by drawing up liquid films
download between 0-24 hoursReleased: 1986
ISO 6889:1986-Surface active agents — Determination of interfacial tension by drawing up liquid films

ISO 6889:1986

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

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Standard´s number:ISO 6889:1986
Pages:10
Edition:2
Released:1986
DESCRIPTION

ISO 6889:1986


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.
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