Reference number
ISO 4318:1989
ISO 4318:1989
© ISO 2024
International Standard
ISO 4318:1989
Surface active agents and soaps — Determination of water content — Azeotropic distillation method
Edition 2
1989-07
1989-07
ISO 4318:1989
10189
Publicado
(Edición 2, 1989)
Esta publicación se revisó y confirmó por última vez en 2019.
Por lo tanto, esta versión es la actual.
Resumen
The water in a test portion is removed by azeotropic destillation with boiling xylene or petroleum. The volume of the water collected is measured. The method is applicable to products in the form of powders having water contents greater than 5 % (m/m), and in the form of pastes ans solutions. It is not applicable to samples containing water-soluble volatile compounds, for example ethanol.
Ciclo de vida
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Anteriormente
RetiradaISO 4318:1978
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Ahora