Codes & Standards - Purchase
ISO 6889:1986
Surface active agents -- Determination of interfacial tension by drawing up liquid films
SKU: iso_013412_105584
Published by ISO
Publication Year 1986
2 Edition
10 pages
Product Details
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.