Current stage: 90.60 Close of review Sep 3, 2023
Originator: ISO
Owner: IULTCS International Union of Leather Technologists and Chemists Societies
Type: International Standard
ICS: 59.140.30 Leather and furs
Status: Published
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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.
WITHDRAWN ISO 4045:2008
PUBLISHED ISO 4045:2018 90.60 Close of review Sep 3, 2023
