SIST EN ISO 4045:2018 PDF
Leather - Chemical tests - Determination of pH and difference figure (ISO 4045:2018)
Leather - Chemical tests - Determination of pH and difference figure (ISO 4045:2018)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 10
- Дата публикации:
- 12 июля 2018 г.
- ICS:
- 59.140.30
- Технический комитет:
- IUSN - Leather
This document specifies a method for determining the pH value and the difference figure of an aqueous leather extract. It is applicable to all types of leather.
Abstract
Overview
EN ISO 4045:2018 - "Leather - Chemical tests - Determination of pH and difference figure" specifies a standardized laboratory method to determine the of an aqueous leather extract and, where required, the (the difference between the pH of the extract and the pH of its tenfold dilution). Prepared by IULTCS in cooperation with CEN, this method is applicable to and is widely used in quality control, conformity testing and R&D.
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