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ISO 4047:1977

Leather — Determination of sulphated total ash and sulphated water-insoluble ash ISO 4047:1977

Publication date:   Nov 1, 1977

General information

90.93 Standard confirmed   Sep 22, 2021

ISO

IULTCS International Union of Leather Technologists and Chemists Societies

International Standard

59.140.30   Leather and furs

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Scope

To determine the total mineral content, for example within the framework of a complete leather analysis, the inorganic substances can be ascertained by calculation or determined separately. The principle consists of the carbonization of the leather followed by treatment with sulphuric acid and ashing in an open crucible. The method is applicable to all types of leather.

Life cycle

NOW

PUBLISHED
ISO 4047:1977
90.93 Standard confirmed
Sep 22, 2021