oSIST prEN ISO 11925-2:2024
(Main)Reaction to fire tests - Ignitability of products subjected to direct impingement of flame - Part 2: Single-flame source test (ISO/DIS 11925-2:2024)
Reaction to fire tests - Ignitability of products subjected to direct impingement of flame - Part 2: Single-flame source test (ISO/DIS 11925-2:2024)
This document specifies a method of test for determining the ignitability of products by direct small flame impingement under zero impressed irradiance using vertically oriented test specimens.
Information on the precision of the test method is given in Annex A (informative).
Information on testing not essentially flat end-use products is given in Annex B (normative).
Information on testing perforated end-use products is given in Annex C (normative).
Prüfungen zum Brandverhalten-Entzündbarkeit von Produkten bei direkter Flammeneinwirkung-Teil2: Einzelflammentest (ISO/DIS 11925-2:2024)
Essais de réaction au feu - Allumabilité de produits soumis à l'incidence directe de la flamme - Partie 2: Essai à l'aide d'une source à flamme unique (ISO/DIS 11925-2:2024)
Le présent document spécifie une méthode d'essai permettant de déterminer l'allumabilité des produits par incidence directe d'une petite flamme sous éclairement énergétique nul en utilisant des éprouvettes en position verticale.
L'Annexe A (informative) fournit des informations sur la fidélité de la méthode d'essai.
L'Annexe B (normative) fournit des informations concernant les essais sur produits non globalement plans dans leur utilisation finale.
L'Annexe C (normative) fournit des informations concernant les essais sur des produits perforés dans leur utilisation finale.
Preskusi odziva na ogenj - Sposobnost vžiga gradbenih proizvodov v neposrednem stiku s plamenom - 2. del: Preskus z enim gorilnikom (ISO/DIS 11925-2:2024)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2024
Preskusi odziva na ogenj - Sposobnost vžiga gradbenih proizvodov v
neposrednem stiku s plamenom - 2. del: Preskus z enim gorilnikom (ISO/DIS 11925
-2:2024)
Reaction to fire tests - Ignitability of products subjected to direct impingement of flame -
Part 2: Single-flame source test (ISO/DIS 11925-2:2024)
Prüfungen zum Brandverhalten-Entzündbarkeit von Produkten bei direkter
Flammeneinwirkung-Teil2: Einzelflammentest (ISO/DIS 11925-2:2024)
Essais de réaction au feu - Allumabilité de produits soumis à l'incidence directe de la
flamme - Partie 2: Essai à l'aide d'une source à flamme unique (ISO/DIS 11925-2:2024)
Ta slovenski standard je istoveten z: prEN ISO 11925-2
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
International
Standard
ISO/DIS 11925-2
ISO/TC 92/SC 1
Reaction to fire tests — Ignitability
Secretariat: BSI
of products subjected to direct
Voting begins on:
impingement of flame —
2024-08-05
Part 2:
Voting terminates on:
2024-10-28
Single-flame source test
Essais de réaction au feu — Allumabilité de produits soumis à
l'incidence directe de la flamme —
Partie 2: Essai à l'aide d'une source à flamme unique
ICS: 13.220.50; 13.220.99
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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RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 11925-2:2024(en)
DRAFT
ISO/DIS 11925-2:2024(en)
International
Standard
ISO/DIS 11925-2
ISO/TC 92/SC 1
Reaction to fire tests — Ignitability
Secretariat: BSI
of products subjected to direct
Voting begins on:
impingement of flame —
Part 2:
Voting terminates on:
Single-flame source test
Essais de réaction au feu — Allumabilité de produits soumis à
l'incidence directe de la flamme —
Partie 2: Essai à l'aide d'une source à flamme unique
ICS: 13.220.50; 13.220.99
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 2024
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
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BE CONSIDERED IN THE LIGHT OF THEIR
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POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
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NOTIFICATION OF ANY RELEVANT PATENT
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Published in Switzerland Reference number
ISO/DIS 11925-2:2024(en)
ii
ISO/DIS 11925-2:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test apparatus . 2
5 Test specimen . 4
5.1 Preparation .4
5.2 Dimensions .4
5.3 Products which are not essentially flat .4
5.4 Number of specimens .4
5.5 Substrates .5
6 Conditioning . 5
7 Test procedure . 5
7.1 General .5
7.2 Preliminary operations .5
7.3 Testing operations .5
7.4 Duration of test .7
8 Expression of results . 7
9 Test report . 7
Annex A (informative) Precision of test method .22
Annex B (normative) Testing not essentially flat end-use products .25
Annex C (normative) Testing perforated end-use products .26
Bibliography .27
iii
ISO/DIS 11925-2:2024(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 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,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 92, Fire safety, Subcommittee SC 1, Fire
initiation and growth.
This fourth edition cancels and replaces the third edition (ISO 11925-2:2010), which has been technically
revised. It also incorporates the Technical Corrigendum ISO 11925-2:2010/Cor1:2011.
A list of all parts in the ISO 11925 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
ISO/DIS 11925-2:2024(en)
Introduction
This fire test method has been developed to define reaction to fire performance of products. The method
specifies a test for determining the ignitability of products by direct small-flame impingement under zero
impressed irradiance using vertically oriented test specimens.
Although the method is designed to assess ignitability, this is addressed by measuring the spread of a small
flame up the vertical surface of a specimen following application of a small (match-sized) flame to either
the surface or edge of a specimen for either 15 s or 30 s. The determination of the production of flaming
droplets/particles depends on whether the filter paper placed beneath the specimen ignites.
v
DRAFT International Standard ISO/DIS 11925-2:2024(en)
Reaction to fire tests — Ignitability of products subjected to
direct impingement of flame —
Part 2:
Single-flame source test
1 Scope
This document specifies a method of test for determining the ignitability of products by direct small flame
impingement under zero impressed irradiance using vertically oriented test specimens.
Information on the precision of the test method is given in Annex A (informative).
Information on testing not essentially flat end-use products is given in Annex B (normative).
Information on testing perforated end-use products is given in Annex C (normative).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 13238, Reaction to fire tests for building products — Conditioning procedures and general rules for selection
of substrates
ISO 13943, Fire safety — Vocabulary
ISO 14697, Reaction-to-fire tests — Guidance on the choice of substrates for building and transport products
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 13943 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the fo
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