ISO 4047:1977
Leather — Determination of sulphated total ash and sulphated water-insoluble ash
Leather — Determination of sulphated total ash and sulphated water-insoluble ash
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 ноября 1977 г.
- Издание:
- ISO IS 4047 edition 1 version 1
- ICS:
- 59.140.30
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.
Abstract
Overview
ISO 4047:1977 defines a standardized laboratory procedure for determining and in leather. The method is applicable to all types of leather and is intended to support complete leather analysis by quantifying mineral matter after carbonization, sulphating and controlled ashing. Key practical benefits include consistent ash-content measurement for quality control, formulation checks and regulatory/compliance documentation.
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