1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationPlastics Smoke generationPart 2: Determination of optical densityby a single-chamber testBS EN ISO 5659-2:2012BS EN ISO 5659-2:2012Incorporating corrigendum March 2013BS EN ISO 5
2、659-2:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 5659-2:2012. Itsupersedes BS EN ISO 5659-1:1999 and BS EN ISO 5659-2:2006, whichare withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/26, Burning behaviour of
3、plastics and rubbers.A list of organizations represented on this committee can be obtainedon request to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application. The British Standards Institution 2013.Publ
4、ished by BSI Standards Limited 2013ISBN 978 0 580 81975 9ICS 13.220.40; 83.080.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 January 2013.Amendments/corrige
5、nda issued since publicationDate Text affected30 June 2013 Implementation of CEN correction notice 19 December 2012: supersession information modifiedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 5659-2 December 2012 ICS 13.220.40; 83.080.01 Supersedes EN ISO 5659-2:2006English Version Pl
6、astics - Smoke generation - Part 2: Determination of optical density by a single-chamber test (ISO 5659-2:2012) Plastiques - Production de fume - Partie 2: Dtermination de la densit optique par un essai en enceinte unique (ISO 5659-2:2012) Kunststoffe - Rauchentwicklung - Teil 2: Bestimmung der opti
7、schen Dichte durch Einkammerprfung (ISO 5659-2:2012) This European Standard was approved by CEN on 30 November 2012. 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 an
8、y 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 langua
9、ge 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,
10、 Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR
11、 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 5659-2:2012: EBS EN ISO 5659-2:2012EN ISO
12、5659-2:2012 (E) 3 Foreword This document (EN ISO 5659-2:2012) has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN. This European Standard shall be given the status of a national standard
13、, either by publication of an identical text or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn at the latest by June 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/
14、or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 5659-2:2006. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austr
15、ia, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden
16、, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 5659-2:2012 has been approved by CEN as a EN ISO 5659-2:2012 without any modification. BS EN ISO 5659-2:2012EN ISO 5659-2:2012 (E) 3 Foreword This document (EN ISO 5659-2:2012) has been prepared by Technical Committee I
17、SO/TC 61 “Plastics“ in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN. 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 June 2013, and conflict
18、ing national standards shall be withdrawn at the latest by June 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document su
19、persedes EN ISO 5659-2:2006. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Repub
20、lic of Macedonia, France, Germany, Greece, Hungar Icela Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 5659-2:2012 has been approve
21、d by CEN as a EN ISO 5659-2:2012 without any modification. BS EN ISO 5659-2:2012EN ISO 5659-2:2012 (E) 3 Foreword This document (EN ISO 5659-2:2012) has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which
22、is held by NBN. 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 June 2013, and conflicting national standards shall be withdrawn at the latest by June 2013. Attention is drawn to the possibility t
23、hat some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 5659-2:2006. According to the CEN/CENELEC Internal Regulations, the national standards organi
24、sations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, M
25、alta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 5659-2:2012 has been approved by CEN as a EN ISO 5659-2:2012 without any modification. BS EN ISO 5659-2:2012This document supersedes
26、 EN ISO 5659-1:2006 and EN ISO 5659-2:2006.ISO 5659-2:2012(E) ISO 2012 All rights reserved iiiContents PageIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 14 Principles of the test . 35 Suitability of a material for testing . 35.1 Material geometry 35.2 Physical character
27、istics . 36 Specimen construction and preparation. 36.1 Number of specimens . 36.2 Size of specimens 36.3 Specimen preparation 46.4 Wrapping of specimens . 46.5 Conditioning 47 Apparatus and ancillary equipment 57.1 General . 57.2 Test chamber 57.3 Specimen support and heating arrangements 97.4 Gas
28、supply 147.5 Photometric system . 157.6 Chamber leakage 177.7 Cleaning materials 177.8 Ancillary equipment 178 Test environment 189 Setting-up and calibration procedures 189.1 General 189.2 Alignment of photometric system . 199.3 Selection of compensating filter(s) 199.4 Linearity check . 209.5 Cali
29、bration of range-extension filter . 209.6 Chamber leakage rate test 209.7 Burner calibration . 209.8 Radiator cone calibration 219.9 Cleaning 219.10 Frequency of checking and calibrating procedure 2110 Test procedure .2210.1 General 2210.2 Preparation of test chamber . 2210.3 Tests with pilot flame
30、. 2210.4 Preparation of the photometric system 2210.5 Loading the specimen 2210.6 Recording of light transmission 2310.7 Observations 2310.8 Termination of test . 2410.9 Testing in different modes . 2411 Expression of results .2511.1 Specific optical density Ds.2511.2 Clear-beam correction factor Dc
31、25BS EN ISO 5659-2:2012ISO 5659-2:2012(E)iv ISO 2012 All rights reserved12 Precision 2513 Test report 26Annex A (normative) Calibration of heat flux meter 27Annex B (informative) Variability in the specific optical density of smoke measured in the single-chamber test 28Annex C (informative) Determin
32、ation of mass optical density 30Annex D (informative) Precision data from tests on intumescent materials 35Annex E (informative) Guidance on optical density testing 37Bibliography .45BS EN ISO 5659-2:2012ISO 5659-2:2012(E)iv ISO 2012 All rights reserved12 Precision 2513 Test report 26Annex A (normat
33、ive) Calibration of heat flux meter 27Annex B (informative) Variability in the specific optical density of smoke measured in the single-chamber test 28Annex C (informative) Determination of mass optical density 30Annex D (informative) Precision data from tests on intumescent materials 35Annex E (inf
34、ormative) Guidance on optical density testing 37Bibliography .45BS EN ISO 5659-2:2012ISO 5659-2:2012(E)IntroductionFire is a complex phenomenon: its development and effects depend upon a number of interrelated factors. The behaviour of materials and products depends upon the characteristics of the f
35、ire, the method of use of the materials and the environment in which they are exposed (see also ISO/TR 38141and ISO 13943).A test such as is specified in this part of ISO 5659 deals only with a simple representation of a particular aspect of the potential fire situation, typified by a radiant heat s
36、ource, and it cannot alone provide any direct guidance on behaviour or safety in fire. A test of this type may, however, be used for comparative purposes or to ensure the existence of a certain quality of performance (in this case, smoke production) considered to have a bearing on fire behaviour gen
37、erally. It would be wrong to attach any other meaning to results from this test.The term “smoke” is defined in ISO 13943 as a visible suspension of solid and/or liquid particles in gases resulting from incomplete combustion. It is one of the first response characteristics to be manifested and should
38、 almost always be taken into account in any assessment of fire hazard as it represents one of the greatest threats to occupants of a building or other enclosure, such as a ship or train, on fire.The responsibility for the preparation of ISO 5659 was transferred during 1987 from ISO/TC 92 to ISO/TC 6
39、1 on the understanding that the scope and applicability of the standard for the testing of materials should not be restricted to plastics but should also be relevant to other materials where possible, including building materials.vi ISO 2012 All rights reservedBS EN ISO 5659-2:2012Plastics Smoke gen
40、eration Part 2: Determination of optical density by a single-chamber test1 Scope1.1 This part of ISO 5659 specifies a method of measuring smoke production from the exposed surface of specimens of materials, composites or assemblies. It is applicable to specimens that have an essentially flat surface
41、 and do not exceed 25 mm in thickness when placed in a horizontal orientation and subjected to specified levels of thermal irradiance in a closed cabinet with or without the application of a pilot flame. This method of test is applicable to all plastics and may also be used for the evaluation of oth
42、er materials (e.g. rubbers, textile-coverings, painted surfaces, wood and other materials).1.2 It is intended that the values of optical density determined by this test be taken as specific to the specimen or assembly material in the form and thickness tested, and are not to be considered inherent,
43、fundamental properties.1.3 The test is intended primarily for use in research and development and fire safety engineering in buildings, trains, ships, etc. and not as a basis for ratings for building codes or other purposes. No basis is provided for predicting the density of smoke that might be gene
44、rated by the materials upon exposure to heat and flame under other (actual) exposure conditions. This test procedure excludes the effect of irritants on the eye.NOTE This test procedure addresses the loss of visibility due to smoke density, which generally is not related to irritancy potency (see An
45、nex E).1.4 It is emphasized that smoke production from a material varies according to the irradiance level to which the specimen is exposed. The results yielded from the method specified in this part of ISO 5659 are based on exposure to the specific irradiance levels of 25 kW/m2and 50 kW/m2.2 Normat
46、ive referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) ap
47、plies.ISO 13943, Fire safety VocabularyISO 14934-3, Fire tests Calibration and use of heat flux meters Part 3:Secondary calibration method3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 13943 and the following apply.3.1assemblyfabrication of materials
48、 and/or compositesNOTE 1 Sandwich panels are an example of an assembly.NOTE 2 The assembly may include an air gap.INTERNATIONAL STANDARD ISO 5659-2:2012(E) ISO 2012 All rights reserved 1BS EN ISO 5659-2:2012Plastics Smoke generation Part 2: Determination of optical density by a single-chamber test1
49、Scope1.1 This part of ISO 5659 specifies a method of measuring smoke production from the exposed surface of specimens of materials, composites or assemblies. It is applicable to specimens that have an essentially flat surface and do not exceed 25 mm in thickness when placed in a horizontal orientation and subjected to specified levels of thermal irradiance in a closed cabinet with or without the application of a pilot flame. This method of test is applicable to all plastics and may also be used for the evaluation of other materials (e.g. ru
