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IEC 60695-9-2
Edition 2.0 2021-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
HORIZONTAL PUBLICATION
PUBLICATION HORIZONTALE
Fire hazard testing –
Part 9-2: Surface spread of flame – Summary and relevance of test methods
Essais relatifs aux risques du feu –
Partie 9-2: Propagation des flammes en surface – Résumé et pertinence
des méthodes d'essai
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IEC 60695-9-2
Edition 2.0 2021-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
HORIZONTAL PUBLICATION
PUBLICATION HORIZONTALE
Fire hazard testing –
Part 9-2: Surface spread of flame – Summary and relevance of test methods
Essais relatifs aux risques du feu –
Partie 9-2: Propagation des flammes en surface – Résumé et pertinence
des méthodes d'essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.220.40; 29.020 ISBN 978-2-8322-9997-5
– 2 – IEC 60695-9-2:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Summary of published test methods . 12
4.1 General . 12
4.2 The physical fire model . 12
4.3 Small-scale fire tests. 14
4.3.1 Horizontal and vertical 50 W and 500 W flame tests – IEC 60695-11-10
and IEC 60695-11-20 . 14
4.3.2 Fire hazard testing – Part 11-21: Test flames – 500 W vertical flame
test method for tubular polymeric materials – IEC TS 60695-11-21 [5] . 14
4.3.3 Flexible insulating sleeving – Part 2: Methods of test, Clause 26: Flame
propagation tests – IEC 60684-2:2011 [7], Clause 26 . 15
4.3.4 Vertical burning test for cables – IEC 60332-1 [9] . 16
4.3.5 Vertical burning test for cables – IEC 60332-2 [10] . 17
4.3.6 Flexible cellular polymeric materials – Laboratory assessment of horizontal
burning characteristics of small specimens subjected to a small flame –
ISO 3582 [11] . 18
4.3.7 Horizontal burning rate for road vehicle materials – ISO 3795 [12]. . 19
4.3.8 Cellular plastics – Determination of horizontal burning characteristics of
small specimens subjected to a small flame – ISO 9772 [13] . 19
4.3.9 Plastics – Determination of burning behaviour of thin flexible vertical
specimens in contact with a small-flame ignition source – ISO 9773 [15] . 20
4.3.10 Fire propagation apparatus – ISO 12136 [16] . 21
4.3.11 Plastics – Vertical flame spread determination for film and sheet –
ISO 12992 [27] . 23
4.3.12 Vertical burning test for aircraft materials – FAR 25 [29] . 23
4.4 Medium and intermediate-scale fire tests . 24
4.4.1 Lateral flame spread on building and transport products – ISO 5658-2 [30] . 24
4.4.2 Intermediate-scale fire test of vertical flame spread – ISO 5658-4 [33]. 25
4.4.3 Plastics – Reaction to fire – Test method for flame spread and combustion
product release from vertically oriented specimens – ISO 21367 [35] . 26
4.5 Intermediate and large-scale fire tests for cables . 26
4.5.1 General . 26
4.5.2 Vertical burning tests for cables (ladder tests) . 27
4.5.3 Vertical burning test for cables – NF C 32-070 [60] . 31
4.6 Real-scale fire tests for cables . 31
4.6.1 Standard for test for flame propagation height of electrical and optical-
fiber cables installed vertically in shafts – UL 1666 [61] . 31
4.6.2 Horizontal flame spread test for cables – EN 50289-4-11 [62] . 32
5 Overview of methods and relevance of data . 33
Bibliography . 38
Table 1 – Characteristics of fire stages (ISO 19706:2011) . 13
a)
Table 2 – Summary and comparison of IEC 60332 vertical ladder test methods [37] . 28
Table 3 – Summary and comparison of non-IEC vertical ladder test methods . 29
Table 4 – Overview of flame spread methods . 34
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIRE HAZARD TESTING –
Part 9-2: Surface spread of flame –
Summary and relevance of test methods
FOREWORD
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International Standard IEC 60695-9-2 has been prepared by IEC technical committee 89: Fire
hazard testing.
It has the status of a basic safety publication in accordance with IEC Guide 104.
This second edition cancels and replaces the first edition of IEC 60695-9-2 published in 2014.
This edition consti
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