1、BSI Standards PublicationBS EN 597-2:2015Furniture Assessment of theignitability of mattresses andupholstered bed basesPart 2: Ignition source: match flameequivalentBS EN 597-2:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 597-2:2015. It supersedes BS EN
2、597-2:1995 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee FW/6, Flammability performance and fire tests for furniture.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport
3、to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 85288 6 ICS 13.220.40; 97.140 Compliance with a British Standard cannot confer immunity from legal ob
4、ligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 597-2:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 597-2 December 2015 ICS 1
5、3.220.40; 97.140 Supersedes EN 597-2:1994English Version Furniture - Assessment of the ignitability of mattresses and upholstered bed bases - Part 2: Ignition source: match flame equivalent Ameublement - valuation de lallumabilit des matelas et des sommiers rembourrs - Partie 2: Source dallumage : f
6、lamme quivalente celle dune allumetteMbel - Bewertung der Entzndbarkeit von Matratzen und gepolsterten Bettbden - Teil 2: Zndquelle: eine einem brennenden Streichholz vergleichbare Gasflamme This European Standard was approved by CEN on 7 November 2015. CEN members are bound to comply with the CEN/C
7、ENELEC 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 Centr
8、e or to any CEN 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 CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the
9、official versions. CEN members are the national standards bodies of 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, Malta, Netherla
10、nds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights
11、 of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 597-2:2015 EBS EN 597-2:2015EN 597-2:2015 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Terms and definitions . 5 3 Criteria of ignition. 6 3.1 Progressive smouldering igniti
12、on . 6 3.2 Flaming ignition . 6 4 Principle . 6 5 Health and safety of operators . 6 5.1 General 6 5.2 Enclosure 6 5.3 Extinguishers 7 6 Apparatus . 7 6.1 Test rig 7 6.2 Test enclosure 8 6.3 Clock . 8 6.4 Ignition source: gas flame ignition source, match-flame equivalent . 8 6.5 Gas flow control . 8
13、 7 Atmospheres for conditioning and testing 9 7.1 Conditioning 9 7.2 Atmosphere for testing . 9 8 Test assembly . 9 8.1 General 9 8.2 Small scale . 9 8.3 Full size . 9 9 Test procedure . 9 9.1 Preparation . 9 9.2 Ignition source application . 10 9.3 Final examination 10 10 Test report 10 Annex A (in
14、formative) Model test report form . 12 BS EN 597-2:2015EN 597-2:2015 (E) 3 European foreword This document (EN 597-2:2015) has been prepared by Technical Committee CEN/TC 207 “Furniture”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard
15、, either by publication of an identical text or by endorsement, at the latest by June 2016 and conflicting national standards shall be withdrawn at the latest by June 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/o
16、r CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 597-2:1994. The test is based on EN 1021-2, Furniture Assessment of the ignitability of upholstered furniture Part 2: Ignition source: match flame equivalent. The main changes in relati
17、on to EN 597-2:1994 are: the standard has been aligned with EN 597-1; a tolerance has been added to the temperature of the gas flame; clarification of the gas supply required to produce ignition source 1. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
18、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, Malta, Netherlan
19、ds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 597-2:2015EN 597-2:2015 (E) 4 Introduction This European Standard is one of a series of standards concerned with the ignitability of upholstered furniture using various ignitio
20、n sources. The ignition source used in this European Standard is a gas flame equivalent to a match flame. When mattresses or bed bases are used or stored on their own, it is desirable to know their ignitability in their own right. It cannot be assumed that protection against flaming sources will aut
21、omatically give protection against smouldering ignition. Users of the standard should therefore recognize the need to submit test specimens to both a gas flame equivalent to a match flame and cigarette ignition tests. WARNING Attention is drawn to the fact that the tests given in the test report (se
22、e Clause 10) are not intended to reproduce the full fire hazards that may be encountered. BS EN 597-2:2015EN 597-2:2015 (E) 5 1 Scope This European Standard specifies a test method to assess the ignitability of mattresses, upholstered bed bases, when subjected to a gas flame as an ignition source. A
23、ir mattresses and water beds are excluded from this standard. The standard contains one annex: Annex A (informative) Model test report form. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 progressive smouldering exothermic oxidation, not acc
24、ompanied by flaming, that is self-propagating, i.e. independent of the ignition source, which may or may not be accompanied by incandescence 2.2 flaming undergoing combustion in the gaseous phase with the emission of light 2.3 flammability ability of a material or product to burn with a flame under
25、the specified test conditions 2.4 ignitability measure of the ease with which a material, product or component can be ignited so as to flame or progressively smoulder 2.5 ignition source source of energy used to ignite combustible materials or products 2.6 mattress pad upholstered product that is us
26、ed in conjunction with, and to complement, a mattress or upholstered bed base 2.7 mattress upholstered product intended for sleeping upon 2.8 bed base structure of a bed that supports a mattress or the surface(s) of a mattress that support(s) a user 2.9 upper surface surface of a bed base that suppo
27、rts a mattress or the surface(s) of a mattress that support(s) a user BS EN 597-2:2015EN 597-2:2015 (E) 6 3 Criteria of ignition 3.1 Progressive smouldering ignition For the purposes of this European Standard, all the following types of behaviour are considered to be progressive smouldering ignition
28、s: a) any test assembly that displays escalating combustion behaviour so that it is unsafe to continue the test and active extinction is necessary; b) any test assembly that smoulders until it is largely consumed within the test duration; c) any test assembly that smoulders to its full thickness, wi
29、thin the duration of the test; d) any test assembly that smoulders after one hour from the application of the ignition source; e) any test assembly that, on final examination (see 9.3), shows evidence of progressive smouldering. NOTE In practice it has been found that there is usually a clear distin
30、ction between materials which can char under the influence of the ignition source but which do not propagate further (non-progressive combustion) and those where smouldering develops in extent and spreads (progressive combustion). 3.2 Flaming ignition For the purposes of this European Standard, all
31、the following types of behaviour are considered to be flaming ignitions: a) any test assembly that displays escalating combustion behaviour so that it is unsafe to continue the test and active extinction is necessary; b) any test assembly that burns until it is essentially consumed within the test d
32、uration; c) any test assembly on which any flame front reaches the lower margin, either side or passes through its full thickness within the duration of the test; d) any flaming which continues for more than 120 s after removal of the burner tube. 4 Principle To subject a full upper surface or upper
33、 surface characteristic features of a mattress, the bed base or the mattress pad to the contact of a gas flame which is equivalent to a match flame by placing the gas flame so that all the zones having different characteristics are tested. 5 Health and safety of operators 5.1 General The test method
34、 specified in this European Standard presents a considerable hazard; suitable precautions shall be taken. 5.2 Enclosure For safety, the test should be conducted in a non-combustible fume cupboard. If such a cupboard is not available, a test enclosure should be constructed (see 6.2) so that the opera
35、tor is protected from the fumes. BS EN 597-2:2015EN 597-2:2015 (E) 7 5.3 Extinguishers Adequate means of extinguishing the assembly should be provided, bearing in mind that some combinations may produce severe flaming during the test. A hand and/or fixed water spray which can be directed over the bu
36、rning area can be useful. Other means such as suitable fire extinguishers, fire blankets and a bucket of water will assist. In some cases, smouldering may be difficult to extinguish completely and complete immersion in water may be necessary. 6 Apparatus 6.1 Test rig Consisting of a platform of expa
37、nded steel or open mesh at least 450 mm x 450 mm supported at least 75 mm above a solid base (a suitable test rig mesh is illustrated in Figure 1). The size of the mesh is not critical. For the tests the rigs shall be sited within the enclosure (see 6.2) and the testing shall be performed in a basic
38、ally draught-free environment permitting an adequate supply of air and removal of smoke from the area of the apparatus. Dimensions in millimetres Key A mesh made from wire approximately 2 mm in diameter X test rig width at least test specimen width Y test rig length at least test specimen length Fig
39、ure 1 Test rig assembly BS EN 597-2:2015EN 597-2:2015 (E) 8 6.2 Test enclosure The test enclosure shall consist of either a room with a volume greater than 20 m3(which contains adequate oxygen for testing) or a smaller enclosure with a through flow of air. Inlet and extraction systems providing an a
40、ir speed rate of less than 0,2 m/s in the locality of the rig provide adequate oxygen without disturbing the burning behaviour. 6.3 Clock The clock shall be capable of measuring to at least 1 h with an accuracy of 1 s. 6.4 Ignition source: gas flame ignition source, match-flame equivalent NOTE 1 Thi
41、s source has been designed to give a calorific output approximating to that of a burning match. A burner tube consisting of a length of stainless steel tube (8 0,1) mm outside diameter, (6,5 0,1) mm internal diameter and (200 5) mm in length is connected by flexible tubing to a cylinder containing b
42、utane via a flowmeter, fine control valve, on-off valve (optional) and cylinder regulator providing outlet pressure of nominal 2,8 kPa1). NOTE 2 Where tubing of these dimensions is not readily available, stainless steel tubing of approximately similar dimensions can be used provided that the 50 mm l
43、ength at the flame end of the tube is machined to the given size. To facilitate positioning the tube, a suitable handle can be fitted to it at least 100 mm from the flame end of the burner tube. A calibrated flow meter shall supply butane gas at a flow rate of (45 2) ml/min at (25 3) C. The flexible
44、 tubing connecting the output of the flowmeter to the burner tube shall be 2,5 m to 3 m in length with an internal diameter of (7 1) mm. NOTE 3 This corresponds to a flame height of approximately 35 mm. 6.5 Gas flow control It is essential that the rate of supply of gas to the burner tube conforms t
45、o the flow rate specified. Some difficulties have been reported with the supply and measurement of the gas, particularly where the gas cylinder has, of necessity, to be stored in an environment cooler than the defined test conditions and/or at some distance from the test rig. In these cases, and oth
46、er situations where difficulties occur, it is important that there should be sufficient length of tubing inside the controlled environment (10 C to 30 C) to ensure that the gas equilibrates to the required temperature (before flow measurement). One way to assist this is to pass the gas (before flow
47、measurement) through a metal tube immersed in water maintained at a constant temperature such that the gas temperature at entry to the flow meter is (25 3) C, so that flow corrections for temperature variations can be avoided. Great care also needs to be exercised with the measurement and setting of
48、 the flow rate of the gas. Direct reading flowmeters, even those obtained with a direct gas calibration, need to be checked when initially installed and also at regular intervals during testing by a method capable of accurately measuring the absolute gas flow at the burner tube. One way of doing thi
49、s is to connect the burner tube with a short length of tubing (about 7 mm inside diameter) to a soap bubble flowmeter, such that the upward passage of a soap film meniscus in a glass tube of calibrated volume (e.g. a burette) over a known period of time gives an absolute measurement of the flow. 1)1kPa = 103N/m2 = 10 mbar BS EN 597-2:2015EN 597-2:2015 (E) 9 7 Atmospheres for conditioning and testing 7.1 Conditioning The materials to be tested and the cigarettes shall be conditioned for at least 24 h immediately before the tests in t
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