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SRPS ISO 9101:1996

Surface active agents — Determination of interfacial tension — Drop volume method

Feb 1, 1996
Feb 1, 1996

General information

95.60     Apr 25, 2025

ISS

H091

International Standard

71.100.40  

Serbian  

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Scope

The volume of a drop of an aqueous phase formed at the end of a vertical capillary tube is measured when it detaches from the tube in contact with the organic phase. The interfacial tension between two liquid phases is obtained by balancing the weight of the drop with the interfacial tension force supporting it and applying a correction factor. Then the interfacial tension is calculated from the volume of the falling drop, the outer capillary radius, the density difference between the two liquid phases and the acceleration due to gravity.

Life cycle

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PUBLISHED
SRPS ISO 9101:1996
95.60 Close of voting
Apr 25, 2025

Related project

Adopted from ISO 9101:1987

National regulations and standards

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