Foreword

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This document was prepared by the Chemical Tests Commission of the International Union of Leather Technologists and Chemists Societies (IUC Commission, IULTCS) in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat of which is held by UNI, in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement).

It is based on IUC 11 published in J. Soc. Leather Tech. Chem., 49, pp. 25–29, 1965, and declared an official method of the IULTCS in 1965.

IULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to further the advancement of leather science and technology. IULTCS has three Commissions, which are responsible for establishing international methods for the sampling and testing of leather. ISO recognizes IULTCS as an international standardizing body for the preparation of test methods for leather.

This third edition cancels and replaces the second edition (ISO 4045:2008), which has been technically revised as follows:

— change in title to include “and difference figure”;
— 5.1 and 6.1 have been revised;
— Clause 7 has been revised: two samples are only prepared when there is enough leather;
— 8.1 has been revised to more clearly explain the procedure;
— 8.2 has been added (previously part of the next clause);
— 8.3 and 8.4 (previously 8.2 and 8.3) have been revised and the previous title of 8.4 deleted;
— Clause 9 b) and d) have been revised.

BS EN ISO 4045:2018

Leather. Chemical tests. Determination of pH and difference figure

Current

Published:

30 Jun 2018