EN ISO 1043-4:2021

Plastics - Symbols and abbreviated terms - Part 4: Flame retardants (ISO 1043-4:2021)

This document provides uniform symbols for flame retardants added to plastics materials.

Kunststoffe - Kennbuchstaben und Kurzzeichen - Teil 4: Flammschutzmittel (ISO 1043-4:2021)

Dieses Dokument stellt einheitliche Kennbuchstaben für Flammschutzmittel, die in Kunststoffen eingesetzt werden, zur Verfügung.

Plastiques - Symboles et termes abrégés - Partie 4: Ignifuges (ISO 1043-4:2021)

Le présent document fournit des symboles uniformes à utiliser pour qualifier les ignifuges ajoutés aux matériaux plastiques.

Polimerni materiali - Simboli in kratice - 4. del: Zaviralci gorenja (ISO 1043-4:2021)

General Information

• Status: Published
• Publication Date: 03-Aug-2021
• Withdrawal Date: 27-Feb-2022
• ICS: 83.040.30 - Auxiliary materials and additives for plastics
• ICS: 83.080.01 - Plastics in general
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249 - Plastics
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 04-Aug-2021
• Completion Date: 04-Aug-2021
• Ref Project: SIST EN ISO 1043-4:2021 - Plastics - Symbols and abbreviated terms - Part 4: Flame retardants (ISO 1043-4:2021)

Relations

• Replaces: EN ISO 1043-4:1999 - Plastics - Symbols and abbreviated terms - Part 4: Flame retardants (ISO 1043-4:1998)
• Effective Date: 11-Aug-2021
• Replaces: EN ISO 1043-4:1999/A1:2016 - Plastics - Symbols and abbreviated terms - Part 4: Flame retardants (ISO 1043-4:1998/Amd 1:2016)
• Effective Date: 15-Jan-2020
• Amended By: EN ISO 1043-4:2021/prA1 - Plastics - Symbols and abbreviated terms - Part 4: Flame retardants - Amendment 1 (ISO 1043-4:2021/DAM 1:2025)
• Effective Date: 18-Dec-2024

Overview

EN ISO 1043-4:2021, titled "Plastics - Symbols and abbreviated terms - Part 4: Flame retardants", is a vital international standard maintained by CEN and ISO/TC 61 for plastics identification. This document establishes uniform symbols and codes for flame retardants added to plastic materials, ensuring consistency and clarity in plastics industry communication. It supersedes earlier versions (1999 and 2016 amendments) with updated content relevant to flame retardant substances in plastics.

The standard focuses on providing a comprehensive coding system designed for flame retardants exceeding a 1% mass fraction in plastics. These symbols are used alongside existing symbols from related plastics standards (ISO 1043-1 to 1043-3), enhancing traceability and compliance in material specifications.

Key Topics

• Uniform Symbol System:
  The standard uses the abbreviated term "FR", followed by a two-digit code in parentheses (e.g., FR(10)) to designate flame retardants. This allows easy and standardized identification on plastic materials and technical documentation.

• Code Numbers by Chemical Classes:
  The codes are organized based on the chemical composition of flame retardants, including:

  • Halogenated compounds (codes 10 to 29) such as chlorinated, brominated, and fluorinated substances
  • Nitrogen compounds (code 30) including melamine derivatives
  • Organic phosphorus compounds (40-49), both halogenated and halogen-free
  • Inorganic phosphorus compounds (50-59) like ammonium orthophosphates and red phosphorus
  • Metal oxides and hydroxides (60-69) such as aluminium hydroxide and antimony oxide
  • Boron and zinc compounds (70-79)
  • Silica compounds (75-76) including silicones
  • Graphite (code 80)

• Scope and Application:
  Applies to plastics containing flame retardants where the flame retardant comprises more than 1% by mass. The standard supports materials’ identification, regulatory compliance, and communication among manufacturers, regulators, and consumers.

• Continuous Updates:
  EN ISO 1043-4:2021 replaces previous editions and adds new code numbers to reflect developments in flame retardant technologies and regulations.

Applications

• Material Identification and Traceability
  Standardized flame retardant symbols streamline the identification process on product labels, datasheets, and packaging, facilitating quality control and safe handling.

• Regulatory Compliance
  Manufacturers and suppliers use these symbols to demonstrate adherence to fire safety standards and chemical regulations, improving transparency in the supply chain.

• Research and Development
  Clear identification of flame retardants aids R&D teams in selecting appropriate additives for product safety, performance, and environmental considerations.

• Quality Assurance and Testing
  Testing labs and certification bodies rely on these symbols to ensure plastics meet flame retardant performance criteria.

• International Trade
  Harmonized symbols reduce technical barriers to trade by providing a universally understood system for flame retardant identification in plastics.

Related Standards

• ISO 1043 Series

  • ISO 1043-1: Basic polymers and their special characteristics
  • ISO 1043-2: Fillers and reinforcing materials
  • ISO 1043-3: Plasticizers

• ISO 11469: Generic identification and marking of plastics products - complements EN ISO 1043-4 by providing guidance for marking plastics including additives.

• CEN and ISO Regulations
  Coordination between CEN and ISO ensures Europe-wide and global adoption of the standard, promoting uniformity and reducing discrepancies across national regulations.

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Keywords: EN ISO 1043-4:2021, flame retardants, plastics symbols, plastics additives, plastics identification, fire retardant codes, halogenated flame retardants, phosphorus flame retardants, quality assurance plastics, plastics traceability, ISO plastics standards, CEN plastics standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2021
Nadomešča:
SIST EN ISO 1043-4:2000
SIST EN ISO 1043-4:2000/A1:2016
Polimerni materiali - Simboli in kratice - 4. del: Zaviralci gorenja (ISO 1043-4:2021)
Plastics - Symbols and abbreviated terms - Part 4: Flame retardants (ISO 1043-4:2021)
Kunststoffe - Kennbuchstaben und Kurzzeichen - Teil 4: Flammschutzmittel (ISO 1043-
4:2021)
Plastiques - Symboles et termes abrégés - Partie 4: Ignifuges (ISO 1043-4:2021)
Ta slovenski standard je istoveten z: EN ISO 1043-4:2021
ICS:
01.075 Simboli za znake Character symbols
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 1043-4
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2021
EUROPÄISCHE NORM
ICS 83.040.30; 83.080.01 Supersedes EN ISO 1043-4:1999, EN ISO 1043-
4:1999/A1:2016
English Version
Plastics - Symbols and abbreviated terms - Part 4: Flame
retardants (ISO 1043-4:2021)
Plastiques - Symboles et termes abrégés - Partie 4: Kunststoffe - Kennbuchstaben und Kurzzeichen - Teil
Ignifuges (ISO 1043-4:2021) 4: Flammschutzmittel (ISO 1043-4:2021)
This European Standard was approved by CEN on 24 July 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1043-4:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 1043-4:2021) has been prepared by Technical Committee ISO/TC 61 "Plastics"
in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by
NBN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2022, and conflicting national standards
shall be withdrawn at the latest by February 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 1043-4:1999, EN ISO 1043-4:1999/A1:2016.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN websites.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 1043-4:2021 has been approved by CEN as EN ISO 1043-4:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 1043-4
Second edition
2021-07
Plastics — Symbols and abbreviated
terms —
Part 4:
Flame retardants
Plastiques — Symboles et termes abrégés —
Partie 4: Ignifuges
Reference number
ISO 1043-4:2021(E)
©
ISO 2021
ISO 1043-4:2021(E)
© ISO 2021
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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
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Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 1043-4:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Application of symbols . 1
5 Code numbers for flame retardants . 2
Bibliography . 5
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