EN 60695-7-3:2011

Fire hazard testing - Part 7-3: Toxicity of fire effluent - Use and interpretation of test results

IEC 60695-7-3:2011 concerns laboratory tests used to measure the toxic components of the fire effluent from either electrotechnical products or materials used in electrotechnical products. It provides guidance on the use and interpretation of results from such tests. It discusses currently available approaches to toxic hazard assessment consistent with the approach of ISO TC 92 SC 3, as set out in ISO 13344, ISO 13571, ISO 16312-1, ISO 16312-2, ISO 19701, ISO 19702 and ISO 19706. It also provides guidance on the use of toxic potency data in fire hazard assessment and on principles which underlie the use of combustibility and toxicological information in fire hazard assessment. The methods described are applicable to data concerning both the incapacitating effects and the lethal effects of fire effluents. This first edition cancels and replaces the second edition of IEC/TS 60695-7-3 published in 2004. It constitutes a technical revision and now has a status of an International Standard. The main changes with respect to the previous edition are listed below: - change of designation from a Technical Specification to an International Standard; - the Foreword, Introduction, and Clauses 1, 2 and 3 have been updated; - expanded in all areas to further clarify the alignment with ISO/TC 92 Fire Safety and in particular with ISO 13344, ISO 13571, ISO/IEC 13943, ISO 16312-1, ISO 16312-2, ISO 19701, ISO 19702 and ISO 19706. It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC Guide 51. This publication is to be read in conjunction with IEC 60695-7-1:2010 and IEC 60695-7-2:2002.

Prüfungen zur Beurteilung der Brandgefahr - Teil 7-3: Toxizität von Rauch und/oder Brandgasen - Anwendung und Beurteilung von Prüfergebnissen

Essais relatifs aux risques du feu - Partie 7-3: Toxicité des effluents du feu - Utilisation et interprétation des résultats d'essai

La CEI 60695-7-3:2011 concerne les essais en laboratoire utilisés pour mesurer les composants toxiques des effluents du feu provenant des produits électrotechniques ou des matériaux utilisés dans ces produits. Elle fournit des indications pour l'utilisation et l'interprétation des résultats obtenus lors de ces essais. Elle traite des approches actuellement disponibles pour l'évaluation du danger toxique, compatibles avec l'approche du TC 92 SC 3 de l'ISO, telle qu'elle est définie dans l'ISO 13344, l'ISO 13571, l'ISO 16312-1, l'ISO 16312-2, l'ISO 19701, l'ISO 19702 et l'ISO 19706. Elle fournit également des indications pour l'utilisation des données de potentiel toxique dans l'évaluation du danger d'incendie et sur les principes qui mettent l'accent sur l'utilisation des informations sur la combustion et la toxicologie dans l'évaluation du danger d'incendie. Les méthodes décrites sont applicables aux données concernant à la fois les effets incapacitants et les effets létaux des effluents du feu. Cette première édition annule et remplace la deuxième édition de la CEI/TS 60695-7-3, parue en 2004. Elle constitue une révision technique qui conduit au statut de Norme internationale. Les principales modifications par rapport à l'édition précédente sont indiquées ci-dessous: - changement de désignation d'une spécification technique à une Norme internationale; - mise à jour de l'avant-propos, de l'Introduction et des Articles 1, 2 et 3; - la norme a été étoffée dans tous les domaines, afin de préciser son alignement sur les travaux du TC 92 de l'ISO, Sécurité au feu, et en particulier sur l'ISO 13344, l'ISO 13571, l'ISO/CEI 13943, l'ISO 16312-1, l'ISO 16312-2, l'ISO 19701, l'ISO 19702 et l'ISO 19706. Elle a le statut d'une publication fondamentale de sécurité, conformément au Guide CEI 104 et au Guide ISO/CEI 51. Cette publication doit être lue conjointement avec la CEI 60695-7-1:2010 et la CEI 60695-7-2:2002.

Preskušanje požarne ogroženosti - 7-3. del: Toksičnost dimnih plinov - Uporaba in predstavitev rezultatov preskušanja

Ta del IEC 60695 obravnava laboratorijske preskuse, ki se uporabljajo za merjenje toksičnih komponent dimnih plinov iz elektrotehničnih proizvodov ali materialov, ki se uporabljajo v elektrotehničnih proizvodih. Zagotavlja smernice za uporabo in tolmačenje rezultatov iz takšnih preskusov. Obravnava trenutno razpoložljive pristope za ocenitev toksične ogroženosti, skladne s pristopom ISO TC 92 SC 3, kot je navedeno v ISO 13344, ISO 13571, ISO 16312-1, ISO 16312-2, ISO 19701, ISO 19702 in ISO 19706. Prav tako zagotavlja navodila pri uporabi podatkov o učinkovitosti strupov pri ocenjevanju požarne ogroženosti in načelih, ki so podlaga za uporabo gorljivosti in toksičnosti pri oceni požarne ogroženosti. Opisane metode veljajo za podatke v zvezi z učinki onesposobitve in smrtonosnimi učinki dimnih plinov. Ta osnovna varnostna objava je namenjena temu, da jo uporabljajo tehnični odbori pri pripravi standardov v skladu z načeli, opredeljenimi v Vodilu 104 IEC in Vodilu 51 ISO/IEC. Ena od odgovornosti tehničnega odbora je, če je to primerno, uporabiti temeljne varnostne objave pri pripravi svojih objav. Zahteve, preskusne metode ali preskusni pogoji te temeljne varnostne objave se ne uporabljajo, razen če se ustrezne objave nanje izrecno sklicujejo ali jih vključujejo.

General Information

• Status: Published
• Publication Date: 20-Oct-2011
• Withdrawal Date: 03-Oct-2014
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: CLC/SR 89 - Fire hazard testing
• Drafting Committee: IEC/TC 89 - IEC_TC_89
• Parallel Committee: IEC/TC 89 - IEC_TC_89
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 21-Oct-2011
• Completion Date: 21-Oct-2011
• Ref Project: SIST EN 60695-7-3:2012 - Fire hazard testing - Part 7-3: Toxicity of fire effluent - Use and interpretation of test results

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2012
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Fire hazard testing - Part 7-3: Toxicity of fire effluent - Use and interpretation of test
results
Prüfungen zur Beurteilung der Brandgefahr -- Teil 7-3: Toxizität von Rauch und/oder
Brandgasen - Anwendung und Beurteilung von Prüfergebnissen
Essais relatifs aux risques du feu - Partie 7-3: Utilisation et interprétation des résultats
d'essai
Ta slovenski standard je istoveten z: EN 60695-7-3:2011
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
29.020 Elektrotehnika na splošno Electrical engineering in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60695-7-3
NORME EUROPÉENNE
October 2011
EUROPÄISCHE NORM
ICS 13.220.40; 29.020
English version
Fire hazard testing -
Part 7-3: Toxicity of fire effluent -
Use and interpretation of test results
(IEC 60695-7-3:2011)
Essais relatifs aux risques du feu -  Prüfungen zur Beurteilung der
Partie 7-3: Toxicité des effluents du feu - Brandgefahr -
Utilisation et interprétation des résultats Teil 7-3: Toxizität von Rauch und/oder
d'essai Brandgasen -
(CEI 60695-7-3:2011) Anwendung und Beurteilung von
Prüfergebnissen
(IEC 60695-7-3:2011)
This European Standard was approved by CENELEC on 2011-10-04. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60695-7-3:2011 E
Foreword
The text of document 89/1058/FDIS, future edition 1 of IEC 60695-7-3, prepared by IEC/TC 89 "Fire
hazard testing" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2012-07-04
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2014-10-04
• latest date by which the national
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 60695-7-3:2011 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60695-6-1:2005 NOTE  Harmonized as EN 60695-6-1:2005 (not modified).

- 3 - EN 60695-7-3:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60695-1-10 - Fire hazard testing - EN 60695-1-10 -
Part 1-10: Guidance for assessing the fire
hazard of electrotechnical products - General
guidelines
IEC 60695-1-11 - Fire hazard testing - EN 60695-1-11 -
Part 1-11: Guidance for assessing the fire
hazard of electrotechnical products - Fire
hazard assessment
IEC 60695-7-1 - Fire hazard testing - EN 60695-7-1 -
Part 7-1: Toxicity of fire effluent - General
guidance
IEC 60695-7-2 - Fire hazard testing - EN 60695-7-2 -
Part 7-2: Toxicity of fire effluent - Summary
and relevance of test methods
IEC Guide 104 - The preparation of safety publications and the - -
use of basic safety publications and group
safety publications
ISO/IEC Guide 51 - Safety aspects - Guidelines for their inclusion - -
in standards
ISO 13344 2004 Estimation of the lethal toxic potency of fire - -
effluents
ISO 13571 2007 Life-threatening components of fire - - -
Guidelines for the estimation of time available
for escape using fire data
ISO 13943 2008 Fire safety - Vocabulary EN ISO 13943 2010

ISO 16312-1 - Guidance for assessing the validity of physical - -
fire models for obtaining fire effluent toxicity
data for fire hazard and risk assessment -
Part 1: Criteria
ISO/TR 16312-2 - Guidance for assessing the validity of physical - -
fire models for obtaining fire effluent toxicity
data for fire hazard and risk assessment -
Part 2: Evaluation of individual physical fire
models
ISO 19701 - Methods for sampling and analysis of fire - -
effluents
ISO 19702 - Toxicity testing of fire effluents - Guidance for - -
analysis of gases and vapours in fire effluents
using FTIR gas analysis
Publication Year Title EN/HD Year
ISO 19706 - Guidelines for assessing the fire threat to - -
people
IEC 60695-7-3 ®
Edition 1.0 2011-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ

Fire hazard testing –
Part 7-3: Toxicity of fire effluent – Use and interpretation of test results

Essais relatifs aux risques du feu –
Partie 7-3: Toxicité des effluents du feu – Utilisation et interprétation des
résultats d'essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 13.220.40; 29.020 ISBN 978-2-88912-629-3

– 2 – 60695-7-3 © IEC:2011
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Terms and definitions . 8
4 Principles of toxic hazard assessment . 14
4.1 General . 14
4.2 Exposure dose. 15
4.3 Determination of concentration-time data . 16
4.4 Asphyxiants and the fractional effective dose, FED . 17
4.4.1 General . 17
4.4.2 Properties of the FED . 17
4.4.3 Uses of the FED . 18
4.5 Irritants and the fractional effective concentration, FEC . 18
4.6 Carbon dioxide . 19
4.7 Oxygen vitiation . 19
4.8 Heat stress . 19
4.9 Effects of stratification and transport of fire atmospheres . 19
5 Methods of toxic hazard assessment . 19
5.1 General approach . 19
5.2 Equations used to predict death . 19
5.2.1 Simple toxic gas model . 19
5.2.2 The N-gas model . 20
5.2.3 Hyperventilatory effect of carbon dioxide . 20
5.2.4 Lethal toxic potency values . 20
5.2.5 Mass loss model . 21
5.3 Equations used to predict incapacity . 21
5.3.1 Asphyxiant gas model . 21
5.3.2 Irritant gas model . 22
5.3.3 Mass loss model . 22
6 Toxic potency values . 22
6.1 Generic values of toxic potency . 22
6.2 Toxic potency values obtained from chemical analyses . 22
6.3 Toxic potency values obtained from animal tests . 22
7 Limitations on the interpretation of toxicity test results . 22
8 Effluent components to be measured . 23
8.1 Minimum reporting . 23
8.2 Additional reporting . 23
8.2.1 Gaseous fire effluent components . 23
8.2.2 Airborne particulates . 24
Annex A (informative) Guidance for the use of LC values . 25
Annex B (informative) A simple worked example to illustrate the principles of a toxic
hazard analysis . 28
Annex C (informative) F values for irritants . 32
Bibliography . 33

60695-7-3 © IEC:2011 – 3 –
Figure 1 – Exposure dose as a function of time and concentration . 15
Figure 2 – Time dependent components of fire hazard . 16
Figure 3 – Total FED and contributors, as a function of time . 18
Figure B.1 – Flame spread rate for materials A and B . 29
Figure B.2 – Relative toxic hazard of two materials – time to lethality, i.e. FED ≥ 1 . 31

Table 1 – Some toxic potency values . 20
Table 2 – Combustion products . 24
Table B.1 – Example FED calculation data for material A . 30
Table B.2– Example FED calculation data for material B . 30
Table C.1 – F values for irritants . 32

– 4 – 60695-7-3 © IEC:2011
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIRE HAZARD TESTING –
Part 7-3: Toxicity of fire effluent –
Use and interpretation of test results

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardi
...