BS EN 1021-2-2014 Furniture Assessment of the ignitability of upholstered furniture Ignition source match flame equivalent《家具 装饰家具着火性的评估 与火柴火焰等同的火源》.pdf

《BS EN 1021-2-2014 Furniture Assessment of the ignitability of upholstered furniture Ignition source match flame equivalent《家具 装饰家具着火性的评估 与火柴火焰等同的火源》.pdf》由会员分享，可在线阅读，更多相关《BS EN 1021-2-2014 Furniture Assessment of the ignitability of upholstered furniture Ignition source match flame equivalent《家具 装饰家具着火性的评估 与火柴火焰等同的火源》.pdf（28页珍藏版）》请在麦多课文档分享上搜索。

1、BSI Standards PublicationBS EN 1021-2:2014Furniture Assessment ofthe ignitability of upholsteredfurniturePart 2: Ignition source match flameequivalentBS EN 1021-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1021-2:2014. Itsupersedes BS EN 1021-2:2006 wh

2、ich is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee FW/6, Flammability performance and fire tests forfurniture.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all th

3、e necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 80943 9ICS 13.220.40; 97.140Compliance with a British Standard cannot confer immunity fromlegal obligations.This British

4、 Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2014.Amendments issued since publicationDate Text affectedBS EN 1021-2:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1021-2 August 2014 ICS 97.140; 13.220.40 Supersedes EN 1021-2:2006En

5、glish Version Furniture - Assessment of the ignitability of upholstered furniture - Part 2: Ignition source match flame equivalent Ameublement - valuation de lallumabilit des meubles rembourrs - Partie 2 : Source dallumage : flamme quivalente celle dune allumette Mbel - Bewertung der Entzndbarkeit v

6、on Polstermbeln -Teil 2: Eine einem Streichholz vergleichbare Gasflamme als Zndquelle This European Standard was approved by CEN on 28 June 2014. 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

7、 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 CEN member. This European Standard exists in three official versions (English, French, German).

8、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 official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyp

9、rus, 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, Switzerland, Turkey and United Ki

10、ngdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1021-

11、2:2014 EBS EN 1021-2:2014EN 1021-2:2014 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Terms and definitions .6 3 Criteria of ignition 6 3.1 Progressive smouldering ignition 6 3.2 Flaming ignition .7 4 Principle 7 5 Health and safety of operators .7 5.1 General 7 5.2 Enclosure 7 5.3 Exti

12、nguishers .7 6 Apparatus .8 6.1 Test rig 8 6.2 Test enclosure . 11 6.3 Clock 11 6.4 Ignition source: gas flame ignition source 1, match-flame equivalent . 11 6.5 Gas flow control 11 7 Preparation and conditioning 12 7.1 Preparation 12 7.2 Conditioning 12 7.3 Atmosphere for testing 12 8 Test assembly

13、 . 12 8.1 General . 12 8.2 Cover materials . 12 8.3 Upholstery filling. 13 9 Ignition source application 13 9.1 Preparation 13 9.1.1 General . 13 9.2 Ignition source application 16 9.3 Final examination 16 10 Test report . 16 Annex A (informative) Guidance notes for designers and specifiers . 18 Ann

14、ex B (informative) Model test report form . 20 Annex C (informative) Cleaning of a rig . 21 Annex D (normative) Water soaking procedure 22 D.1 Reagents 22 D.2 Apparatus 22 D.3 Specimens . 22 D.4 Procedure 23 BS EN 1021-2:2014EN 1021-2:2014 (E) 3 Foreword This document (EN 1021-2:2014) has been prepa

15、red 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, either by publication of an identical text or by endorsement, at the latest by February 2015 and conflicting national standards shall b

16、e withdrawn at the latest by February 2015. 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 supersedes EN 1021-2:2006. T

17、he main changes in relation to the 2006 edition of EN 1021-2 are: The standard has been aligned with EN 1021-1; A tolerance has been added to the temperature of the gas flame; Clarification of the gas supply required to production ignition source 1. According to the CEN-CENELEC Internal Regulations,

18、 the national standards organizations 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, La

19、tvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1021-2:2014EN 1021-2:2014 (E) 4 Introduction This European Standard is one of a series of standards concerned with the ignitability

20、 of upholstered furniture using various ignition sources. The ignition source used in this European Standard is a gas flame equivalent to a match flame. BS EN 1021-2:2014EN 1021-2:2014 (E) 5 1 Scope This European Standard specifies a test method to assess the ignitability of material combinations, s

21、uch as covers and fillings used in upholstered seating, when subjected to a small flame as an ignition source. The test measures only the ignitability of a combination of materials used in upholstered seating and not the ignitability of a particular finished item of furniture incorporating these mat

22、erials. BS EN 1021-2:2014EN 1021-2:2014 (E) 6 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 progressive smouldering exothermic oxidation, not accompanied by flaming, that is self-propagating, i.e. independent of the ignition source. It may

23、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 specified test conditions 2.4 ignitability measure of the ease with which a material, product or c

24、omponent 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 outer cover outer layer of the upholstery 2.7 inner cover layer of material used between the outer cover and the upholstery filling whose nominal

25、 thickness is less than or equal to 2 mm Note 1 to entry: Any inner cover nominally greater than 2 mm thick is considered an upholstery filling. 2.8 filling main upholstery material contained by the outer cover and (if used) the inner cover which may consist of several different materials, including

26、 any inner cover nominally greater than 2 mm thick 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 ignitions: a) any test assembly that displays escalating combus

27、tion behaviour so that it is unsafe to continue and 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 the extremities of the specimen, viz. upper or lower margins, either side or

28、to its full thickness, within the duration of the test; BS EN 1021-2:2014EN 1021-2:2014 (E) 7 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 p

29、ractice it has been found that there is usually a clear distinction between materials which may 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 Fla

30、ming ignition For the purposes of this European Standard, all 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

31、 that burns until it is essentially consumed within the test duration; 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 bur

32、ner tube. 4 Principle To subject an assembly of upholstery materials to a gas flame ignition source. The assembly is arranged to represent in stylised form a junction between a seat and back (or seat and arm) such as might occur in a typical chair. The ignitability of an assembly is determined by ap

33、plying a gas flame equivalent to a burning match. The test method measures the ignitability of the overall composite of materials, i.e. outer cover, inner cover, filling etc., as constructed on the test rig. The tests give an indication of, but cannot guarantee, the ignition behaviour of the finishe

34、d item of furniture. The results shall not be stated as being applicable to the general behaviour of any individual component (see also Annex A). NOTE Test specimens prepared from materials taken from furniture that has been used may give different results to the same materials before use. 5 Health

35、and safety of operators 5.1 General The test method 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 enclosur

36、e should be constructed (see 6.2) so that the operator is protected from the fumes. 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 direc

37、ted over the burning 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. BS EN 1021-2:2014EN 1021-2:2014 (E) 8 6 App

38、aratus 6.1 Test rig A suitable test rig is illustrated in Figures 1 and 2. It shall consist of two rectangular frames hinged together and capable of being locked at right angles to each other. The sides and hinge edges of the frames shall be made from nominal 25 mm x 3 mm flat steel bar and shall se

39、curely hold mesh steel platforms set (6 1) mm below the top edge of the frames (mesh size should be such that an open mesh area of approximately 15 mm2to 150 mm2exists). The upper edge of the vertical frame and the front edge of the horizontal frame shall be steel end plates 450 mm x 65 mm x 3 mm to

40、 prevent the test filling moving during the assembly of the test specimen (see Figures 1 and 2). The internal width and height of the back frame shall be (450 2) mm x (300 2) mm and the width and depth of the base frame (450 2) mm x (150 2) mm. A standard edging section may be used around the mesh s

41、teel platform to give protection and greater rigidity. The sides of the frame shall extend beyond the back of each frame to provide for the hinge holes and to form the back legs. The hinge rod shall be of nominal 10 mm diameter steel, continuous across the back of the rig and its axis (22,5 0,5) mm

42、beyond the back member of each frame. BS EN 1021-2:2014EN 1021-2:2014 (E) 9 Key a) test rig b) test rig with cover and fillings c) vertical section X detail of fitting cover to frame 1 filling 2 end plate of frame 3 cover 4 overlap 20 mm 5 clips 6 fold cover overlap under frame to touch the steel me

43、sh supporting the filling and fasten with clips as below Figure 1 Test rig assembly BS EN 1021-2:2014EN 1021-2:2014 (E) 10 Dimensions in millimetres NOTE 1 Unless tolerances are indicated, dimensions are nominal. NOTE 2 All parts are made of steel. Key 1 end plate of frame 65 mm x 3 mm 2 edging sect

44、ion 3 expanded metal mesh size 28 mm x 6 mm (see 6.1) 4 side member of frame 25 3 mm 5 M10 bolt, nut and washers 6 10 hinge rod Figure 2 Test rig detail The frames shall be lockable at right angles by a bolt or pin through each of the pairs of members forming the back legs. The front legs may be wel

45、ded across the front corners of the base frame. The height of the legs shall be such as to leave a gap not less than 50 mm high between the base and frame and the supporting surface. BS EN 1021-2:2014EN 1021-2:2014 (E) 11 For the tests, the rigs shall be sited within the enclosure (see 6.2) and the

46、testing shall be performed in a basically draught-free environment permitting an adequate supply of air and removal of smoke from the area of the apparatus. 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 testin

47、g) or a smaller enclosure with a through flow of air. Inlet and extraction systems providing an air 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 for a period of at least

48、1 h with an accuracy of 1 s. 6.4 Ignition source: gas flame ignition source 1, match-flame equivalent NOTE 1 This 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

49、,5 0,1) mm internal diameter and (200 5) mm in length is connected by flexible tubing to a cylinder containing butane via a flowmeter, fine control valve, on-off valve (optional) and cylinder regulator providing outlet pressure of nominal 2,8 kPa1) ). Where tubing of these dimensions is not readily available, stainless steel tubing of approximately similar dimensions may be used provided that the 50 mm length at the flame end of the tube is machined to the given size. To facilitate positioning the tube, a suitable handle may be fitt