ISO 3451-4:2024

Norme
internationale
ISO 3451-4
Troisième édition
Plastiques — Détermination du taux
2024-02
de cendres —
Partie 4:
Polyamides
Plastics — Determination of ash —
Part 4: Polyamides
Numéro de référence
ISO 3451-4:2024(fr) © ISO 2024

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ISO 3451-4:2024(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2024
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
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Publié en Suisse

© ISO 2024 – Tous droits réservés
ii

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ISO 3451-4:2024(fr)
Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Principe. 1
4.1 Généralités .1
4.2 Matériaux non chargés .2
4.3 Matériaux chargés et renforcés de fibres de verre .2
4.4 Matériaux retardateurs de flamme et renforcés de fibres de verre .2
5 Réactifs (méthode C ou méthode A en présence de DBB) . 2
6 Appareillage . 2
7 Mode opératoire . 3
7.1 Généralités .3
7.2 Prise d’essai .3
7.3 Matériaux non chargés .3
7.4 Matériaux chargés et renforcés de fibres de verre .3
7.5 Matériaux renforcés de fibres de verre contenant du trioxyde de diantimoine
retardateur de flamme et/ou d’autres additifs volatilisables .4
8 Expression des résultats . 4
9 Fidélité .
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 3451-4
ISO/TC 61/SC 5
Plastics — Determination of ash —
Secretariat: DIN
Voting begins on:
Part 4:
2023-11-22
Polyamides
Voting terminates on:
2024-01-17
Plastiques — Détermination du taux de cendres —
Partie 4: Polyamides
ISO/CEN PARALLEL PROCESSING
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 3451-4:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

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ISO/FDIS 3451-4:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 3451-4
ISO/TC 61/SC 5
Plastics — Determination of ash —
Secretariat: DIN
Voting begins on:
Part 4:
Polyamides
Voting terminates on:
Plastiques — Détermination du taux de cendres —
Partie 4: Polyamides
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
ISO/CEN PARALLEL PROCESSING
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 3451-4:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

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ISO/FDIS 3451-4:2023(E)
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
...

2023-10
Style Definition
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ISO/FDIS
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 3451--4:2023(E)
cm
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ISO /TC 61/SC 5/WG 11
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Secretariat: DIN
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Date: 2023-11-08
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Latin and Asian text, Adjust space between Asian text
and numbers
Plastics — Determination of ash — —
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Part 4:
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Polyamides
and Asian text, Adjust space between Asian text and
numbers
Plastiques — Détermination du taux de cendres —
Formatted
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Partie 4: Polyamides
FDIS stage
© ISO 2023 – All rights reserved

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ISO/FDIS 3451-4:2023(E)
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Formatted: Space After: 0 pt, Line spacing: single
© ISO 2023
Formatted: Default Paragraph Font, French
(Switzerland)
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this
publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, Formatted: French (Switzerland)
including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can
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be requested from either ISO at the address below or ISO’s member body in the country of the requester.
(Switzerland)
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ISO copyright office
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CP 401 • Ch. de Blandonnet 8
between Latin and Asian text, Adjust space between
CH-1214 Vernier, Geneva
Asian text and numbers
Phone: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Formatted: French (Switzerland)
Website: www.iso.orgwww.iso.org
Formatted: French (Switzerland)
Published in Switzerland
Formatted: French (Switzerland)
Formatted: French (Switzerland)
Formatted: French (Switzerland)
Formatted: English (United Kingdom)
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Formatted: Font: 11 pt
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ii © ISO 2023 – All rights reserved

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ISO/FDIS 3451-4:2023(E)
Formatted: Font: 11 pt, Bold
Formatted: Left, Space After: 0 pt, Line spacing: single
Formatted: Font: 11 pt, Bold
Contents
Foreword . v
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
...