IEC 60695-6-1:2005
(Main)Fire hazard testing - Part 6-1: Smoke obscuration - General guidance
Fire hazard testing - Part 6-1: Smoke obscuration - General guidance
IEC 60695-6-1:2005 Gives guidance on:
a) optical measurement of smoke obscuration;
b) general aspects of optical smoke test methods;
c) consideration of test methods;
d) expression of smoke test data;
e) relevance of optical smoke data to hazard assessment.
The main changes with respect to the previous edition are listed below:
- Modified title.
- Updated normative references.
- Expanded terms and definitions.
- Numerous editorial changes of a technical nature throughout the publication.
- A flowchart has been added for the evaluation and consideration of smoke test methods.
Essais relatifs aux risques du feu - Partie 6-1: Opacité des fumées - Lignes directrices générales
IEC 60695-6-1:2005 Fournit des lignes directrices sur:
a) la mesure optique de l'obscurcissement par la fumée;
b) les aspects généraux des méthodes d'essais optiques de la fumée;
c) des considérations concernant les méthodes d'essais;
d) l'expression des résultats d'essais;
e) la pertinence des résultats des mesures optiques de la fumée pour l'évaluation des risques.
Les principales modifications par rapport à l'édition antérieure sont indiquées ci-dessous:
- Titre modifié.
- Mise à jour des références normatives.
- Ajout de termes et de définitions.
- Nombreuses modifications rédactionnelles de nature technique dans toute la publication.
- Ajout d'un logigramme pour l'évaluation et la considération des méthodes d'essais de fumée.
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NORME CEI
INTERNATIONALE
IEC
60695-6-1
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2005-05
PUBLICATION FONDAMENTALE DE SÉCURITÉ
BASIC SAFETY PUBLICATION
Essais relatifs aux risques du feu –
Partie 6-1:
Opacité des fumées –
Lignes directrices générales
Fire hazard testing –
Part 6-1:
Smoke obscuration –
General guidance
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Reference number
CEI/IEC 60695-6-1:2005
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NORME CEI
INTERNATIONALE
IEC
60695-6-1
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2005-05
PUBLICATION FONDAMENTALE DE SÉCURITÉ
BASIC SAFETY PUBLICATION
Essais relatifs aux risques du feu –
Partie 6-1:
Opacité des fumées –
Lignes directrices générales
Fire hazard testing –
Part 6-1:
Smoke obscuration –
General guidance
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– 2 – 60695-6-1 CEI:2005
SOMMAIRE
AVANT-PROPOS .6
INTRODUCTION.10
1 Domaine d’application.12
2 Références normatives .12
3 Termes, définitions et symboles .14
3.1 Termes et définitions .14
3.2 Symboles .20
4 Aspects généraux des méthodes d’essais relatives à la fumée .22
4.1 Scénarios et modèles feu .22
4.2 Facteurs affectant la production de fumée.26
5 Principes de mesure de la fumée .28
5.1 Loi de Bouguer .28
5.2 Surface d’extinction .30
5.3 Unités log .32
5.4 Sources lumineuses .32
5.5 Surface d’extinction spécifique.32
5.6 Densité optique massique.34
5.7 Visibilité.36
6 Méthodes statiques et dynamiques.36
6.1 Méthodes statiques.36
6.2 Méthodes dynamiques .36
7 Méthodes d'essais .40
7.1 Considérations sur les méthodes d’essais.40
7.2 Sélection de l’éprouvette d’essai.40
8 Présentation des résultats.40
9 Relation entre les données et l’évaluation du risque .42
Annexe A (informative) Calcul de la visibilité.46
Annexe B (informative) Relations entre D et certains autres paramètres relatifs à la
s
fumée mesurés suivant la CEI 60695-6-30 et la CEI 60695-6-31.50
Annexe C (informative) Relations entre le pourcentage de transmission mesuré dans
une enceinte cubique de 3 m («three metre cube») et la surface d’extinction .56
Bibliographie .60
Figure 1 – Diagramme représentant les différentes phases du développement d’un feu
à l’intérieur d’un local .24
Figure 2 – Atténuation de la lumière par la fumée .30
Figure 3 – Surface d’extinction .30
Figure 4 – Mesure dynamique de la fumée .38
Figure 5 – Evaluation et considération des méthodes d’essais de fumée.44
60695-6-1 IEC:2005 – 3 –
CONTENTS
FOREWORD.7
INTRODUCTION.11
1 Scope.13
2 Normative references.13
3 Terms, definitions and symbols .15
3.1 Terms and definitions .15
3.2 Symbols .21
4 General aspects of smoke test methods.23
4.1 Fire scenarios and fire models .23
4.2 Factors affecting smoke production.27
5 Principles of smoke measurement.29
5.1 Bouguer’s law.29
5.2 Extinction area.31
5.3 Log units .33
5.4 Light sources.33
5.5 Specific extinction area.33
5.6 Mass optical density .35
5.7 Visibility.37
6 Static and dynamic methods .37
6.1 Static methods.37
6.2 Dynamic methods .37
7 Test methods.41
7.1 Consideration of test methods.41
7.2 Selection of test specimen .41
8 Presentation of data.41
9 Relevance of data to hazard assessment .43
Annex A (informative) Calculation of visibility.47
Annex B (informative) Relationships between D and some other smoke parameters as
s
measured in IEC 60695-6-30 and IEC 60695-6-31 .51
Annex C (informative) Relationships between percent transmission, as measured in a
"three metre cube" enclosure, and extinction area .57
Bibliography .61
Figure 1 – Chart of different phases in the development of a fire within a compartment .25
Figure 2 – Attenuation of light by smoke .31
Figure 3 – Extinction area .31
Figure 4 – Dynamic smoke measurement .39
Figure 5 – Evaluation and consideration of smoke test m
...
IEC 60695-6-1 ®
Edition 2.1 2010-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Fire hazard testing –
Part 6-1: Smoke obscuration – General guidance
Essais relatifs aux risques du feu –
Partie 6-1: Opacité des fumées – Lignes directrices générales
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IEC 60695-6-1 ®
Edition 2.1 2010-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Fire hazard testing –
Part 6-1: Smoke obscuration – General guidance
Essais relatifs aux risques du feu –
Partie 6-1: Opacité des fumées – Lignes directrices générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CN
CODE PRIX
ICS 13.220.99; 29.020 ISBN 978-2-88912-122-9
– 2 – 60695-6-1 © IEC:2005+A1:2010
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references.7
3 Terms, definitions and symbols .8
3.1 Terms and definitions .8
3.2 Symbols .16
4 General aspects of smoke test methods.17
4.1 Fire scenarios and fire models .17
4.2 Factors affecting smoke production.21
5 Principles of smoke measurement.22
5.1 Bouguer’s law.22
5.2 Extinction area.23
5.3 Log units .24
5.4 Light sources.24
5.5 Specific extinction area.24
5.6 Mass optical density .25
5.7 Visibility.26
6 Static and dynamic methods .26
6.1 Static methods.26
6.2 Dynamic methods .26
7 Test methods.28
7.1 Consideration of test methods.32
7.2 Selection of test specimen .32
8 Presentation of data.32
9 Relevance of data to hazard assessment .33
Annex A (informative) Calculation of visibility.35
Annex B (informative) Relationships between D and some other smoke parameters as
s
measured in IEC 60695-6-30 and IEC 60695-6-31 .37
Annex C (informative) Relationships between percent transmission, as measured in a
"three metre cube" enclosure, and extinction area .40
Bibliography .42
Figure 1 – Chart of Different phases in the development of a fire within a compartment .20
Figure 2 – Attenuation of light by smoke .23
Figure 3 – Extinction area .23
Figure 4 – Dynamic smoke measurement .27
Figure 5 – Evaluation and consideration of smoke test methods .34
Figure 6 – Example SPR versus t curve .31
av
Figure 7 – SMOGRA curve derived from Figure 6 .31
60695-6-1 © IEC:2005+A1:2010 – 3 –
Figure A.1 – Visibility (ω) versus extinction coefficient (k).35
Figure B.1 – Smoke parameters related to D as measured in IEC 60695-6-30 and
s
IEC 60695-6-31.39
Figure C.1 – Extinction area (amount of smoke) related to percent transmission as
measured in the "three metre cube".41
Table 1 – General classification of fires (ISO/TR 9122-1) Characteristics of fire stages
(ISO 19706) .18
Table B.1 – Conversion from D to some other smoke parameters as measured in
s
IEC 60695-6-30 and IEC 60695-6-31.38
Table C.1 – Conversions from percent transmission, as measured in the “three metre
cube” to amount of smoke (extinction area) .40
– 4 – 60695-6-1 © IEC:2005+A1:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
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FIRE HAZARD TESTING –
Part 6-1: Smoke obscuration –
General guidance
FOREWORD
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