prEN ISO 11612

SLOVENSKI STANDARD
01-november-2023
Varovalna obleka - Obleka za varovanje pred toploto in plamenom - Minimalne
zahtevane lastnosti (ISO/DIS 11612:2023)
Protective clothing - Clothing to protect against heat and flame - Minimum performance
requirements (ISO/DIS 11612:2023)
Schutzkleidung - Kleidung zum Schutz gegen Hitze und Flammen -
Mindestleistungsanforderungen (ISO/DIS 11612:2023)
Vêtements de protection - Vêtements de protection contre la chaleur et les flammes -
Exigences de performance minimales (ISO/DIS 11612:2023)
Ta slovenski standard je istoveten z: prEN ISO 11612
ICS:
13.340.10 Varovalna obleka Protective clothing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT INTERNATIONAL STANDARD
ISO/DIS 11612
ISO/TC 94/SC 13 Secretariat: SNV
Voting begins on: Voting terminates on:
2023-08-21 2023-11-13
Protective clothing - Clothing to protect against heat and
flame - Minimum performance requirements
ICS: 13.340.10
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
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NATIONAL REGULATIONS.
ISO/DIS 11612:2023(E)
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. © ISO 2023

ISO/DIS 11612:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11612
ISO/TC 94/SC 13 Secretariat: SNV
Voting begins on: Voting terminates on:

Protective clothing - Clothing to protect against heat and
flame - Minimum performance requirements
ICS: 13.340.10
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
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TECHNOLOGICAL, COMMERCIAL AND
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 11612:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

ISO/DIS 11612:2023(E)
Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General and design requirements . .5
4.1 General . 5
4.2 Size designation and fit . 5
4.2.1 General . 5
4.2.2 Protective clothing . 5
4.2.3 Additional protective garments . 5
4.3 Pockets and closures . 6
4.4 Hardware . . 6
4.5 Additional design requirements for molten splash protective garments. 6
5 Sampling and pre-treatment . .7
5.1 Sampling . 7
5.2 Pre-treatment . 7
5.2.1 Pre-treatment by cleaning . 7
5.2.2 Mechanical pre-treatment . 7
5.3 Ageing . 7
5.4 Conditioning. 7
6 General performance requirements . 8
6.1 General . 8
6.2 Heat resistance . 8
6.2.1 Heat resistance at a temperature of (180 ± 5) °C . 8
6.2.2 Optional requirement — Heat resistance at a temperature of (260 ± 5) °C . 8
6.3 Limited flame spread . 8
6.3.1 General . 8
6.3.2 Testing in accordance with ISO 15025:2016, Procedure A (code letter A1) . 9
6.3.3 Testing in accordance with ISO 15025:2016, Procedure B (code letter A2). 10
6.4 Dimensional change of textile materials . 10
6.5 Physical requirements . 11
6.5.1 Tensile strength . 11
6.5.2 Tear strength . 11
6.5.3 Burst strength for knitted materials and seams . 11
6.5.4 Seam strength . 11
6.6 Fat content of leather . 11
7 Heat transmission performance requirements .11
7.1 General . 11
7.2 Convective heat (code letter B) .12
7.3 Radiant heat (code letter C) .12
7.4 Molten aluminium splash (code letter D) .12
7.5 Molten iron splash (code letter E) . 13
7.6 Contact heat (code letter F) .13
8 Summary of flame and heat transmission tests and corresponding letter codes
(see Table 8) .14
9 Marking . .14
10 Information supplied by the manufacturer .15
Annex A (normative) Mechanical pre-treatment for metallized materials.16
iii
ISO/DIS 11612:2023(E)
Annex B (normative) Determination of property values for rating and classification .18
Annex C (informative) Guidelines for clothing design .19
Annex D (informative) Risk assessment .20
Annex E (normative) Uncertainty of measurement .21
Annex F (informative) Smart Garments .23
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2016/425 aimed to be covered .24
Bibliography .27
iv
ISO/DIS 11612:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, gover
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