prEN ISO 14451-4

SLOVENSKI STANDARD
01-marec-2026
Pirotehnični izdelki - Pirotehnični izdelki za vozila - 4. del: Zahteve in kategorizacija
za mikro plinske generatorje (ISO/DIS 14451-4:2026)
Pyrotechnic articles - Pyrotechnic articles for vehicles - Part 4: Requirements and
categorization for micro gas generators (ISO/DIS 14451-4:2026)
Pyrotechnische Gegenstände - Pyrotechnische Gegenstände für Fahrzeuge - Teil 4:
Anforderungen und Kategorisierung von Mikrogasgeneratoren (ISO/DIS 14451-4:2026)
Articles pyrotechniques - Articles pyrotechniques pour véhicules - Partie 4: Exigences
relatives aux microgénérateurs de gaz et leur classement en catégories (ISO/DIS 14451-
4:2026)
Ta slovenski standard je istoveten z: prEN ISO 14451-4
ICS:
43.040.99 Drugi sistemi za cestna vozila Other road vehicle systems
71.100.30 Eksplozivi. Pirotehnika in Explosives. Pyrotechnics and
ognjemeti fireworks
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 14451-4
ISO/TC 22/SC 36
Pyrotechnic articles — Pyrotechnic
Secretariat: AFNOR
articles for vehicles —
Voting begins on:
Part 4: 2026-01-12
Requirements and categorization
Voting terminates on:
2026-04-06
for micro gas generators
Articles pyrotechniques — Articles pyrotechniques pour
véhicules —
Partie 4: Exigences relatives aux microgénérateurs de gaz et leur
classement en catégories
ICS: 71.100.30; 43.040.80
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
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BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
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 SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 14451-4:2026(en)
DRAFT
ISO/DIS 14451-4:2026(en)
International
Standard
ISO/DIS 14451-4
ISO/TC 22/SC 36
Pyrotechnic articles — Pyrotechnic
Secretariat: AFNOR
articles for vehicles —
Voting begins on:
Part 4:
2026-01-12
Requirements and categorization
Voting terminates on:
2026-04-06
for micro gas generators
Articles pyrotechniques — Articles pyrotechniques pour
véhicules —
Partie 4: Exigences relatives aux microgénérateurs de gaz et leur
classement en catégories
ICS: 71.100.30; 43.040.80
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2026
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: +41 22 749 01 11
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 14451-4:2026(en)
ii
ISO/DIS 14451-4:2026(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements and acceptance criteria . 1
4.1 General .1
4.2 Verification of design and documentation .1
4.2.1 Documentation.1
4.2.2 Forbidden substances .2
4.2.3 Disposal .2
4.3 Drop test .2
4.3.1 Requirements .2
4.3.2 Acceptance criteria .2
4.4 Vibration and temperature test . .2
4.4.1 Requirements .2
4.4.2 Acceptance criteria .2
4.5 Thermal humidity cycling test .2
4.5.1 Requirements .2
4.5.2 Acceptance criteria .2
4.6 Electrostatic discharge (ESD) test .3
4.6.1 Requirements .3
4.6.2 Acceptance criteria .3
4.7 Tank test .3
4.7.1 Requirements .3
4.7.2 Acceptance criteria .3
4.8 Functioning test . .3
4.8.1 Requirements .3
4.8.2 Acceptance criteria .3
5 Test matrix for micro gas generators . 3
6 Categorization . 4
6.1 Categories.4
6.2 Acceptance criteria .4
Annex ZA (informative) Relationship between this European Standard and the essential safety
requirements of Directive 2013/29/EU aimed to be covered . 5

iii
ISO/DIS 14451-4:2026(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards i
...