ISO 5431:2022
(Main)Leather — Wet blue goat skins — Specification
Leather — Wet blue goat skins — Specification
This document specifies requirements, sampling methods and testing methods for wet blue leather produced from goat skins tanned without hair and with the use of basic chromium sulfate as the primary tanning agent.
Cuir — Peaux de caprins à l'état "bleu humide" — Spécifications
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 5431
Third edition
2022-11
Leather — Wet blue goat skins —
Specification
Cuir — Peaux de caprins à l'état "bleu humide" — Spécifications
Reference number
ISO 5431:2022(E)
© ISO 2022
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ISO 5431:2022(E)
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© ISO 2022
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© ISO 2022 – All rights reserved
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ISO 5431:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Raw material . 2
4.2 Tanning . 2
4.3 Fungicidal additives . 2
4.4 Presentation . 2
4.5 Shrinkage temperature . 2
4.6 Chemical requirements . . 2
5 Sampling . 3
5.1 Sampling for routine testing . 3
5.2 Sampling in case of dispute . 3
5.3 Preparation of samples . 3
6 Test methods . 3
6.1 Visual tests . 3
6.2 Shrinkage temperature . 3
6.3 Volatile matter . 4
6.4 pH of the water extract . 4
6.5 Effectiveness of the fungicide . 4
6.6 Determination of matter soluble in dichloromethane . 4
7 Packaging and marking . 4
7.1 Packaging . 4
7.2 Marking . 4
Bibliography . 5
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ISO 5431:2022(E)
Foreword
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