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ISO
ISO 4318 : 1989

ISO 4318 : 1989

Surface active agents and soaps — Determination of water content — Azeotropic distillation method

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General Information

Status : Active

Standard Type : Main

Document No : ISO 4318 : 1989

Document Year : 1989

Pages : 2

Edition : 2

Section Volume : Surface active agents (ISO/TC 91.)

ICS : Surface active agents (71.100.40)

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.