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ISO 4322:1977

Non-ionic surface active agents — Determination of sulphated ash — Gravimetric method ISO 4322:1977

Publication date:   May 1, 1977

General information

90.92   Standard to be revised   Mar 14, 2025

ISO

ISO/TC 91 Surface active agents

International Standard

71.100.40   Surface active agents

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Published

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Scope

The method consists in calcination of a test portion in the presence of sulphuric acid solution and weighing of the ash in form of sulphate.

Life cycle

NOW

PUBLISHED
ISO 4322:1977
90.92 Standard to be revised
Mar 14, 2025

REVISED BY

IN_DEVELOPMENT
ISO/CD 4322




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