EN ISO 9038:2021

SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN ISO 9038:2013
Določanje neprekinjene gorljivostii tekočin (ISO 9038:2021)
Determination of sustained combustibility of liquids (ISO 9038:2021)
Bestimmung der Weiterbrennbarkeit von Flüssigkeiten (ISO 9038:2021)
Essai de combustion entretenue de liquides (ISO 9038:2021)
Ta slovenski standard je istoveten z: EN ISO 9038:2021
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 9038
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 13.220.40; 75.080; 87.040 Supersedes EN ISO 9038:2013
English Version
Determination of sustained combustibility of liquids (ISO
9038:2021)
Essai de combustion entretenue de liquides (ISO Bestimmung der Weiterbrennbarkeit von Flüssigkeiten
9038:2021) (ISO 9038:2021)
This European Standard was approved by CEN on 20 April 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 9038:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 9038:2021) has been prepared by Technical Committee ISO/TC 28 "Petroleum
and related products, fuels and lubricants from natural or synthetic sources" in collaboration with
Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN.
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 November 2021, and conflicting national standards
shall be withdrawn at the latest by November 2021.
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 9038:2013.
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 9038:2021 has been approved by CEN as EN ISO 9038:2021 without any modification.

INTERNATIONAL ISO
STANDARD 9038
Third edition
2021-04
Determination of sustained
combustibility of liquids
Essai de combustion entretenue de liquides
Reference number
ISO 9038:2021(E)
©
ISO 2021
ISO 9038:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 9038:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Preparation of apparatus and verification . 3
7 Sampling . 3
7.1 Paints, varnishes and related products . 3
7.2 Petroleum and related products . 3
7.2.1 Sampling procedure . 3
7.2.2 Sample handling . 3
8 Procedure. 4
9 Assessment of r esults . 5
10 Calculation of the adjusted test temperature . 5
11 Precision . 6
12 Test report . 6
Annex A (normative) Combustibility tester . 7
Annex B (normative) Apparatus verification .10
Bibliography .12
ISO 9038:2021(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, 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 28, Petroleum and related products, fuels
and lubricants from natural or synthetic sources, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 139, Paints and varnishes, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 9038:2013), which has been technically
revised.
The main changes compared to the previous edition are as follows:
[1][2]
— the test method has been aligned with the requirements of UN Test L.2 . In particular:
— the requirement for triplicate tests instead of duplicate tests has been specified;
— the standard test temperature has been changed to 60,5 °C;
— the criteria for sustained combustion have been revised.
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 2021 – All rights reserved

ISO 9038:2021(E)
Introduction
A product with a flash point within a given range can continue to burn after initial ignition, while a
similar product, although it has a similar flash point, does not continue to burn. This document describes
a method for discriminating between those products that sustain combustion and those that do not.
The method determines whether a flammable product, when maintained at a selected test temperature,
generates sufficient flammable vapour to cause ignition when an ignition source is applied and then
continues to generate sufficient vapour to burn when the ignition source is moved to the “off” position.
This test method does not determine the flash point of the product under test but, by means of a test
procedure, merely determines if it sustains combustion at a selected test temperature; this criterion can
be required to comply with laws or regulations relating to the storage, transport and use of flammable
products. Before performing this test, for safety and test optimization reasons, it is usual to determine
either the actual flash point of the material or know the temperature range in which the flash point is
located.
The apparatus specified in this document enables a result to be determined by a rapid procedure using
a small test portion (2 ml).
INTERNATIONAL STANDARD ISO 9038:2021(E)
Determination of sustained combustibilit
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