DIN Standards Committee Materials Testing
DIN EN ISO 21135
Chemicals for the leather tanning industry - Determination of the total content of certain bisphenols (ISO/DIS 21135:2023); German and English version prEN ISO 21135:2023
Chemikalien für die Gerbereiindustrie - Bestimmung des Gesamtgehalts von einzelnen Bisphenolen (ISO/DIS 21135:2023); Deutsche und Englische Fassung prEN ISO 21135:2023
Responsible national committee
NA 062-05-52 AA - Chemical test methods of leather
Responsible european committee
CEN/TC 289/WG 6 - Test methods for tannery chemicals
Responsible international committee
IULTCS - International Union of Leather Technologists and Chemists Societies