ISO 5432:2022
(Main)Leather — Wet blue sheep skins — Specification
Leather — Wet blue sheep skins — Specification
This document specifies requirements, sampling methods and testing methods for wet blue leather produced from sheep skins tanned without wool and with the use of basic chromium sulfate as the primary tanning agent.
Cuir — Peaux d'ovins à l'état «bleu humide» — Spécifications
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 5432
Third edition
2022-11
Leather — Wet blue sheep skins —
Specification
Cuir — Peaux d'ovins à l'état «bleu humide» — Spécifications
Reference number
ISO 5432:2022(E)
© ISO 2022
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ISO 5432:2022(E)
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© ISO 2022
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© ISO 2022 – All rights reserved
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ISO 5432:2022(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 cases of dispute . 3
5.3 Preparation of samples . 3
6 Method of testing . 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 5432:2022(E)
Foreword
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