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Homepage>ISO 4047:1977 | IULTCS/IUC 7-Leather — Determination of sulphated total ash and sulphated water-insoluble ash
sklademVydáno: 1977 | IULTCS/IUC 7
ISO 4047:1977 | IULTCS/IUC 7-Leather — Determination of sulphated total ash and sulphated water-insoluble ash

ISO 4047:1977 | IULTCS/IUC 7

ISO 4047:1977 | IULTCS/IUC 7-Leather — Determination of sulphated total ash and sulphated water-insoluble ash

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Označení normy:ISO 4047:1977 | IULTCS/IUC 7
Počet stran:2
Vydání:1
Vydáno:1977 | IULTCS/IUC 7
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ISO 4047:1977 | IULTCS/IUC 7


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.
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