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EN ISO 4047:1998

Leather - Determination of sulphated total ash and sulphated water-insoluble ash (ISO 4047:1977) EN ISO 4047:1998

Publication date:   Nov 6, 2000

General information

90.93 Standard confirmed   Nov 24, 2004

CEN

CEN/TC 289 Leather

European Norm

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
EN ISO 4047:1998
90.93 Standard confirmed
Nov 24, 2004

Relations

Adopted from ISO 4047:1977 IDENTICAL