SIST EN 60695-6-1:2005

STANDARDPreskušanje požarne ogroženosti – 6-1. del: Otemnitev dima – Splošna navodila (IEC 60695-6-1:2005)Fire hazard testing – Part 6-1: Smoke obscuration – General guidance (IEC 60695-6-1:2005)©
Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljenoReferenčna številkaSIST EN 60695-6-1:2005(en)ICS13.220.40; 29.020

EUROPEAN STANDARD
EN 60695-6-1 NORME EUROPÉENNE EUROPÄISCHE NORM
June 2005 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60695-6-1:2005 E
ICS 13.220.99; 29.020 Supersedes EN 60695-6-1:2001
English version
Fire hazard testing Part 6-1: Smoke obscuration –
General guidance (IEC 60695-6-1:2005)
Essais relatifs aux risques du feu Partie 6-1: Opacité des fumées –
Lignes directrices générales (CEI 60695-6-1:2005)
Prüfungen zur Beurteilung
der Brandgefahr Teil 6-1: Sichtminderung durch Rauch - Allgemeiner Leitfaden (IEC 60695-6-1:2005)
This European Standard was approved by CENELEC on 2005-05-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

at national level by publication of an identical
national standard or by endorsement
(dop)
2006-02-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2008-05-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 60695-6-1:2005 was approved by CENELEC as a European Standard without any modification. __________

- 3 - EN 60695-6-1:2005
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 Where an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60695-1-1 - 1) Fire hazard testing Part 1-1: Guidance for assessing the fire hazard of electrotechnical products - General guidelines
EN 60695-1-1 2000 2) IEC 60695-4 1993 Part 4: Terminology concerning fire tests EN 60695-4 1995 A1 1995
- - A2 2001
- - IEC 60695-6-2 2001 Part 6-2: Smoke obscuration - Summary and relevance of test methods
- - IEC 60695-6-30 - 1) Part 6: Guidance and test methods on the assessment of obscuration hazard of vision caused by smoke opacity from electrotechnical products involved in fires - Section 30: Small-scale static method - Determination of smoke opacity - Description of the apparatus
- - IEC 60695-6-31 - 1) Part 6-31: Smoke obscuration - Small-scale static test - Materials
- - IEC Guide 104 1997 The preparation of safety publications and the use of basic safety publications and group safety publications
- - ISO/TR 9122-1 1989 Toxicity testing of fire effluents Part 1: General
- - ISO 5659-2 1994 Plastics - Smoke generation Part 2: Determination of capital density by a single-chamber test
EN ISO 5659-2 1998 ISO 13943 2000 Fire safety - Vocabulary
EN ISO 13943 2000 ISO/IEC Guide 51 1999 Safety aspects - Guidelines for their inclusion in standards - -
1) Undated reference. 2) Valid edition at date of issue.

NORME INTERNATIONALECEIIECINTERNATIONALSTANDARD 60695-6-1Deuxième éditionSecond edition2005-05Essais relatifs aux risques du feu – Partie 6-1: Opacité des fumées – Lignes directrices générales Fire hazard testing – Part 6-1: Smoke obscuration – General guidance Pour prix, voir catalogue en vigueur For price, see current catalogue© IEC 2005
Droits de reproduction réservés
⎯
Copyright - all rights reservedAucune partie de cette publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord écrit de l'éditeur. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission,
3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch
Web: www.iec.ch CODE PRIX PRICE CODE VCommission Electrotechnique InternationaleInternational Electrotechnical CommissionPUBLICATION FONDAMENTALE DE SÉCURITÉ
BASIC SAFETY PUBLICATION
60695-6-1 ¤ IEC:2005 – 3 – CONTENTS FOREWORD.7INTRODUCTION.111Scope.132Normative references.133Terms, definitions and symbols.153.1Terms and definitions.153.2Symbols.214General aspects of smoke test methods.234.1Fire scenarios and fire models.234.2Factors affecting smoke production.275Principles of smoke measurement.295.1Bouguer’s law.295.2Extinction area.315.3Log10 units.335.4Light sources.335.5Specific extinction area.335.6Mass optical density.355.7Visibility.376Static and dynamic methods.376.1Static methods.376.2Dynamic methods.377Test methods.417.1Consideration of test methods.417.2Selection of test specimen.418Presentation of data.419Relevance of data to hazard assessment.43Annex A (informative)
Calculation of visibility.47Annex B (informative)
Relationships between Ds and some other smoke parameters as measured in IEC 60695-6-30 and IEC 60695-6-31.51Annex C (informative)
Relationships between percent transmission, as measured in a "three metre cube" enclosure, and extinction area.57Bibliography.61Figure 1 – Chart of different phases in the development of a fire within a compartment.25Figure 2 – Attenuation of light by smoke.31Figure 3 – Extinction area.31Figure 4 – Dynamic smoke measurement.39Figure 5 – Evaluation and consideration of smoke test methods.45

60695-6-1¤ IEC:2005 – 5 – Figure A.1 – Visibility (Z) versus extinction coefficient (k).47Figure B.1 – Smoke parameters related to Dsas measured in IEC 60695-6-30 and IEC 60695-6-31.55Figure C.1 – Extinction area (amount of smoke) related to percent transmission as measured in the "three metre cube".59Table 1 – General classification of fires (ISO/TR 9122-1).25Table B.1 – Conversion from Ds to some other smoke parameters as measured in IEC 60695-6-30 and IEC 60695-6-31.53Table C.1 – Conversions from percent transmission, as measured
in the “three metre cube” to amount of smoke (extinction area).57

60695-6-1 ¤ IEC:2005 – 7 – INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________FIRE HAZARD TESTING –Part 6-1: Smoke obscuration –
General guidance FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispen
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