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STANDARD 20137
IULTCS
IUC 36
Second edition
2023-11
Leather — Chemical tests —
Guidelines for testing critical
chemicals in leather
Cuir — Essais chimiques — Lignes directrices pour les essais de
produits chimiques critiques sur le cuir
Reference numbers
ISO 20137:2023(E)
IULTCS/IUC 36:2023(E)
© ISO 2023
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ISO 20137:2023(E)
IULTCS/IUC 36:2023(E)
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© ISO 2023
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© ISO 2023 – All rights reserved
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ISO 20137:2023(E)
IULTCS/IUC 36:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Chemical substances potentially found in leather . 1
4.1 Chemical test methods for substances used by the leather industry with no
current legal restrictions for leather . 1
4.2 Chemical test methods for substances previously used by the leather industry . 3
4.3 Chemical test methods for substances not conventionally or intentionally used by
the leather industry . 6
Annex A (informative) Substance lists . 8
Bibliography .13
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© ISO 2023 – All rights reserved
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ISO 20137:2023(E)
IULTCS/IUC 36:2023(E)
Foreword
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
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described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
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of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
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