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Standard
ISO 3451-4
Third edition
Plastics — Determination of ash —
2024-02
Part 4:
Polyamides
Plastiques — Détermination du taux de cendres —
Partie 4: Polyamides
Reference number
ISO 3451-4:2024(en) © ISO 2024
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ISO 3451-4:2024(en)
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Published in Switzerland
© ISO 2024 – All rights reserved
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ISO 3451-4:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
4.1 General .1
4.2 Unfilled materials .1
4.3 Filled and glass-fibre reinforced materials .2
4.4 Flame-retardant materials reinforced with glass fibre .2
5 Reagents (method C or method A in the presence of DBB) . 2
6 Apparatus . 2
7 Procedure . 3
7.1 General .3
7.2 Test portion .3
7.3 Unfilled materials .3
7.4 Filled and glass-fibre reinforced materials .3
7.5 Materials reinforced with glass fibre containing flame-retardant antimony trioxide
and/or other volatilizable additives .3
8 Expression of results .
...