DIN EN ISO 13927-2015 Plastics - Simple heat release test using a conical radiant heater and a thermopile detector (ISO 13927 2015) German version EN ISO 13927 2015《塑料 用锥形辐射加热器和热电堆.pdf

1、August 2015 Translation by DIN-Sprachendienst.English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS

2、 83.080.01!%DVJ“2335139www.din.deDDIN EN ISO 13927Plastics Simple heat release test using a conical radiant heater and a thermopiledetector (ISO 13927:2015);English version EN ISO 13927:2015,English translation of DIN EN ISO 13927:2015-08Kunststoffe Einfache Prfung der Wrmefreisetzung unter Anwendun

3、g eines kegelfrmigenStrahlungsheizkrpers und einer Thermosule als Detektor (ISO 13927:2015);Englische Fassung EN ISO 13927:2015,Englische bersetzung von DIN EN ISO 13927:2015-08Plastiques Essai simple pour la dtermination du dbit calorifique au moyen dun radiateur conique etdune sonde thermopile (IS

4、O 13927:2015);Version anglaise EN ISO 13927:2015,Traduction anglaise de DIN EN ISO 13927:2015-08SupersedesDIN EN ISO 13927:2003-05www.beuth.deDocument comprises 30 pagesIn case of doubt, the German-language original shall be considered authoritative.071155 DIN EN ISO 13927:2015-08 2 A comma is used

5、as the decimal marker. National foreword This document (EN ISO 13927:2015) has been prepared by Technical Committee ISO/TC 61 “Plastics” (Secretariat: SAC, China) in collaboration with Technical Committee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its

6、preparation was the DIN-Normenausschuss Kunststoffe (DIN Standards Committee Plastics), Working Committee NA 054-01-05 AA Brandverhalten. Where the International Standards referred to are not also DIN ISO Standards with the same number, there are no national standards available, except for: ISO 291

7、DIN EN ISO 291 ISO 13943 DIN EN ISO 13943 Amendments This standard differs from DIN EN ISO 13927:2003-05 as follows: a) the standard has been editorially revised. b) reference to ISO/TR 6585 has been deleted from the Introduction; c) references in Clause 2 “Normative references” are now undated; d)

8、Clause 5 “Principle” has been revised; e) Subclause 6.4 “Thermopile and housing” has been extended to include a new paragraph regarding the positioning of an additional set of thermocouples; f) Subclause 7.5 “Dimensionally unstable materials” has been revised to include appropriate fixing options; g

9、) Subclause 7.6 “Materials that require testing under compression” has been added; h) Subclause 8.3.3 “Preparing specimens of materials that require testing under compression” has been added; i) in Subclause 9.2.2 ”Initial calibration”, Table 1 “Methane flow rate calibration”, heat release rate 0,25

10、 kW has been deleted; j) Annex D “Calculation of effective critical heat flux for ignition” has been added. Previous editions DIN EN ISO 13927: 2003-05 DIN EN ISO 13927:2015-08 3 National Annex NA (informative) Bibliography DIN EN ISO 291, Plastics Standard atmospheres for conditioning and testing D

11、IN EN ISO 13943, Fire safety Vocabulary DIN EN ISO 13927:2015-08 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13927 April 2015 ICS 83.080.01 Supersedes EN ISO 13927:2003English Version Plastics - Simple heat release test using a conical radiant heater a

12、nd a thermopile detector (ISO 13927:2015) Plastiques - Essai simple pour la dtermination du dbit calorifique au moyen dun radiateur conique et dune sonde thermopile (ISO 13927:2015) Kunststoffe - Einfache Prfung der Wrmefreisetzung unter Anwendung eines kegelfrmigen Strahlungsheizkrpers und einer Th

13、ermosule als Detektor (ISO 13927:2015) This European Standard was approved by CEN on 21 February 2015. 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 any alteration.

14、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 language made by tra

15、nslation 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, Estonia, Finl

16、and, 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 STANDARDIZATI

17、ON COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 13927:2015 EForeword 4Introduction 51 Scope

18、. 62 Normative references 63 Terms and definitions . 64 Symbols 75 Principle 76 Apparatus . 76.1 General . 76.2 Cone-shaped radiant electrical heater . 96.3 Heat flux controller . 96.4 Thermopile and housing . 106.5 Specimen holder . 106.6 Fume extraction system . 126.7 Ignition circuit 126.8 Igniti

19、on timer 136.9 Heat flux meter 136.10 Calibration burner 136.11 Data collection system . 137 Suitability of a product for testing 157.1 Surface characteristics 157.2 Asymmetrical products 157.3 Thin materials . 157.4 Composite specimens. 157.5 Dimensionally unstable materials . 157.6 Materials that

20、require testing under compression .168 Specimen construction and preparation168.1 Specimens 168.2 Conditioning of specimens 178.3 Preparation . 178.3.1 Specimen wrapping 178.3.2 Specimen preparation 188.3.3 Preparing specimens of materials that require testing under compression 189 Calibration .189.

21、1 Heater calibration 189.2 Thermopile calibration . 199.2.1 General. 199.2.2 Initial calibration 199.2.3 Daily calibration 1910 Test procedure .1910.1 Initial preparation . 2010.2 Procedure . 2011 Precision 2112 Test report 21Annex A (normative) Calibration of the heat flux meter 22Annex B (informat

22、ive) Guidance notes for operators 23Annex C (informative) Measuring mass loss during testing 24Contents Page2DINEN ISO 13927:2015-08EN ISO 13927:2015 (E) Annex D (informative) Calculation of effective critical heat flux for ignition .25Bibliography .263DINEN ISO 13927:2015-08EN ISO 13927:2015 (E) Fo

23、reword This document (EN ISO 13927:2015) 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, either by publicati

24、on of an identical text or by endorsement, at the latest by October 2015, and conflicting national standards shall be withdrawn at the latest by October 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 shal

25、l not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 13927:2003. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bul

26、garia, 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, Switzerland, T

27、urkey and the United Kingdom. Endorsement notice The text of ISO 13927:2015 has been approved by CEN as EN ISO 13927:2015 without any modification. 4DINEN ISO 13927:2015-08EN ISO 13927:2015 (E) IntroductionFire is a complex phenomenon; its behaviour and effects depend upon a number of interrelated f

28、actors. The behaviour of materials and products depends upon the characteristics of the fire, the method of use of the materials, and the environment in which they are exposed (see also ISO 13943).A test such as the one specified in this International Standard deals only with a simple representation

29、 of a particular aspect of the potential fire situation, typified by a radiant heat source, and it cannot alone provide any direct guidance on the behaviour or safety in fire. A test of this type can, however, be used for comparative purposes or to ensure the existence of a certain quality of perfor

30、mance (in this case, heat release from a composite material or an assembly) considered to have a bearing on fire performance generally. It would be wrong to attach any other meaning to performance in this test.The attention of all users of this test is drawn to the warning that immediately precedes

31、Clause 10.5DINEN ISO 13927:2015-08EN ISO 13927:2015 (E) 1 ScopeThis International Standard specifies a method suitable for the production control or product development purposes for assessing the heat release rate of essentially flat products exposed in the horizontal orientation to controlled level

32、s of radiant heating with an external igniter. The heat release rate is determined by the use of a thermopile instead of the more accurate oxygen consumption techniques. The time to ignition (sustained flaming) is also measured in this test. Test specimen mass loss can also be measured optionally.2

33、Normative 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 amendmen

34、ts) applies.ISO 291, Plastics Standard atmospheres for conditioning and testingISO 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 give

35、n in ISO 13943 and the following apply.3.1essentially flat surfacesurface whose irregularity from a plane does not exceed 1 mm3.2ignitiononset of sustained flaming (3.7)3.3materialsingle substance or uniformly dispersed mixture, for example, metal, stone, timber, concrete, mineral fibre, or polymer3

36、.4orientationplane in which the exposed face of the specimen is located during testing either vertical or horizontal face upwards3.5productmaterial, composite or assembly, about which information is required3.6test specimenrepresentative piece of the product which is to be tested together with any s

37、ubstrate or surface treatmentNote 1 to entry: The test specimen may include an air gap.6DINEN ISO 13927:2015-08EN ISO 13927:2015 (E) 3.7sustained flamingexistence of flame on or over the surface of the specimen for a period of over 10 s3.8transitory flamingexistence of flame on or over the surface o

38、f the specimen for a period of between 1 s and 10 s4 Symbolstigtime to ignition (onset of sustained flaming), expressed in seconds (s)q180heat release rate per unit area at 180 s after ignition, expressed in kilowatts (kW/m2)q300heat release rate per unit area at 300 s after ignition, expressed in k

39、ilowatts (kW/m2)qmaxmaximum heat release rate per unit area, expressed in kilowatts (kW/m2)5 PrincipleThe heat release rate is assessed by measurement of the output of a thermopile located in a chimney situated above a burning test specimen that is subjected to a known heat flux from a conical heate

40、r. The output (in mV) which represents temperature (in C) is converted into heat release rate per unit area (in kW/m2) by use of a calibration graph obtained previously by burning methane gas of known calorific value in the same apparatus. The specimen mass loss rate during the test can also be meas

41、ured by continuously recording the specimen load cell output.6 Apparatus6.1 GeneralThe test apparatus shall consist essentially of the following components: a cone-shaped radiant heater, a chimney housing a thermopile, a load cell, a specimen holder, and a fume extraction system. A schematic represe

42、ntation of the assembly is given in Figure 1. The individual components are described below.Untoleranced dimensions are recommended values, but should be followed closely.7DINEN ISO 13927:2015-08EN ISO 13927:2015 (E) Dimensions in millimetresKey1 thermopile2 chimney3 cone heater4 spark igniter5 spec

43、imen6 load cell (optional)Figure 1 Schematic drawing of apparatus8DINEN ISO 13927:2015-08EN ISO 13927:2015 (E) 6.2 Cone-shaped radiant electrical heaterThe active element of the heater shall consist of an electrical heater rod, capable of delivering 5 000 W at the operating voltage, tightly wound in

44、to the shape of a truncated cone (see Figure 2). The heater shall be encased on the outside with a double-walled, stainless-steel cone filled between the walls with a refractory blanket of nominal thickness 13 mm and nominal density 100 kg/m3. The heat flux from the heater shall be maintained at a p

45、re-set level by controlling the average temperature of three type K sheathed stainless-steel thermocouples symmetrically disposed and in contact with, but not welded to the heater element (see Figure 2). 1,0 mm to 1,6 mm outside diameter sheathed (unearthed) thermocouples with an unexposed hot junct

46、ion may be used. The heater shall be capable of producing heat fluxes on the surface of the specimen of up to 75 kW/m2. The heat flux shall be uniform within the central 50 mm 50 mm area of the exposed specimen surface to within 2 % for an irradiance of 50 kW/m2.The cone heater shall be provided wit

47、h a removable radiation shield to protect immediately the specimen from heat prior to the start of the test.6.3 Heat flux controllerThe heat flux control system shall maintain the average temperature of the heater element steady to within 2 C.Dimensions in millimetresKey1 inner shell2 refractory-fib

48、re packing3 thermocouple4 outer shell5 spacer block6 heating elementFigure 2 Cross-sectional view through heater9DINEN ISO 13927:2015-08EN ISO 13927:2015 (E) 6.4 Thermopile and housingA circular cross-section chimney 600 mm 2 mm long and 115 mm 2 mm internal diameter constructed from 1-mm-thick stainless steel shall be used to house the thermopile. This shall be fixed on top of the top-plate of the cone heater. The axis of the chimney shall coincide with the axis of the cone heater. The thermo