1、July 2016 English price group 12No 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 13.220.50!%XLV“2534151www.din.deDIN
2、 EN 16733Reaction to fire tests for building products Determination of a building products propensity to undergo continuous smouldering;English version EN 16733:2016,English translation of DIN EN 16733:2016-07Prfungen zum Brandverhalten von Bauprodukten Bestimmung der Neigung eines Bauprodukts zum k
3、ontinuierlichen Schwelen;Englische Fassung EN 16733:2016,Englische bersetzung von DIN EN 16733:2016-07Essais de raction au feu des produits de construction Dtermination de la propension dun produit de construction subir un feu couvant continu;Version anglaise EN 16733:2016,Traduction anglaise de DIN
4、 EN 16733:2016-07www.beuth.deDocument comprises 23 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.06.16DIN EN 16733:2016-07 2 A comma is used as the decimal marker. National foreword This document (EN 16733:2016) has been prep
5、ared by Technical Committee CEN/TC 127 “Fire safety in buildings” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Bauwesen (DIN Standards Committee Building and Civil Engineering), Working Committee NA 005-52-01 AA Brandverhalten vo
6、n Baustoffen und Bauteilen Baustoffe. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16733 May 2016 ICS 13.220.50 English Version Reaction to fire tests for building products - Determination of a building products propensity to undergo continuous smouldering Essais de raction au feu pour les p
7、roduits de construction - Dtermination de la propension dun produit de construction subir un feu couvant continuPrfungen zum Brandverhalten von Bauprodukten - Bestimmung der Neigung eines Bauprodukts zum kontinuierlichen Schwelen This European Standard was approved by CEN on 12 February 2016. CEN me
8、mbers 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 applica
9、tion 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Manag
10、ement 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, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia
11、, Lithuania, Luxembourg, Malta, Netherlands, 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
12、 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16733:2016 EEN 16733:2016 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Principle
13、 . 6 5 Test apparatus 6 5.1 Main apparatus 6 5.1.1 Test specimen holder 7 5.1.2 Wire mesh box 7 5.1.3 Propane burner . 7 5.1.4 Thermocouples in the test specimen . 7 5.1.5 Recording device . 7 5.2 Additional equipment 8 5.2.1 Flowmeter 8 5.2.2 Timing device . 8 5.2.3 Anemometer . 8 5.2.4 Fire exting
14、uishing board 8 6 Test specimens . 8 6.1 General 8 6.2 Dimensions and number of test specimens . 8 6.3 Loose fill materials . 8 7 Conditioning of specimens . 8 8 Test procedure . 9 9 Termination of test . 9 10 Expression of results . 10 11 Performance criteria and declaration 10 12 Direct and extend
15、ed application of test results 10 13 Test report 11 Annex A (informative) Precision of the method 19 A.1 General . 19 A.2 Conclusions 20 Bibilography . 21 DIN EN 16733:2016-07 EN 16733:2016 (E) 3 European foreword This document (EN 16733:2016) has been prepared by Technical Committee CEN/TC 127 “Fir
16、e safety in buildings”, the secretariat of which is held by BSI. 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 November 2016, and conflicting national standards shall be withdrawn at the latest
17、by February 2018. 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 has been prepared under a mandate given to CEN by the
18、European Commission and the European Free Trade Association. This standard is produced in response to the EC mandate M/385. CEN/TC 127 was requested to develop this test method to determine possible glowing combustion behaviour in building products. This test method forms part of the present EC clas
19、sification system for the reaction to fire. Task Group 6 of CEN TC 127/WG4 was created to develop this test method. In the early stages of its development, it was found that the term glowing combustion as defined in EN ISO 13943 does not completely characterize the specific combustion behaviour of a
20、 building product. In particular, the increase of temperature which is considered as typical for the process of smouldering is not considered in the EN ISO 13943 definition. Therefore the task group made a clarification and changed the term glowing combustion to smouldering combustion. Smouldering i
21、s defined in this standard as combustion of a material without flame and with or without visible light. This includes glowing combustion. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard:
22、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, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, S
23、weden, Switzerland, Turkey and the United Kingdom. DIN EN 16733:2016-07 EN 16733:2016 (E) 4 Introduction This test method has been developed considering methods NT FIRE 002 and NT FIRE 035 and standards BS 5803-4 and norm B 3800. It specifies a test for determining the propensity of products to smou
24、lder continuously when tested in a vertical orientation. The method does not impose a mechanically influenced airflow through the test specimens since this would not represent most end-use conditions. Safety warning The attention of all persons concerned with managing and carrying out this test is d
25、rawn to the fact that fire testing may be hazardous and that there is a possibility that toxic and/or harmful smoke and gases may be evolved during the test. Operational hazards may also arise during the testing of specimens and the disposal of test residues. An assessment of all potential hazards a
26、nd risks to health should be made and safety precautions should be identified and provided. Written safety instructions should be issued. Appropriate training should be given to relevant personnel. Laboratory personnel should ensure that they follow written safety instructions at all times. Adequate
27、 means of extinguishing the specimen should be provided, bearing in mind that some specimens may produce severe flaming during the test. A hand water spray or an inert gas suppression system e.g. compressed nitrogen which can be directed to the burning area should be available together with other me
28、ans, such as fire extinguishers etc. In some cases, smouldering may be difficult to extinguish completely and immersion in water may be necessary. DIN EN 16733:2016-07 EN 16733:2016 (E) 5 1 Scope This European Standard specifies a test method to determine the propensity (ability) of a building produ
29、ct to smoulder continuously when exposed to an open flame under the influence of natural convective airflow. It is intended for all building products classified according to EN 13501-1. Details as to how the products is mounted and fixed for this test are given in the relevant product standards. The
30、 field of application of the test results is defined in the product standards. 2 Normative references The 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
31、 references, the latest edition of the referenced document (including any amendments) applies. EN 13238 Reaction to fire tests for building products Conditioning procedures and general rules for selection of substrates EN 60584-1 Thermocouples Part 1: EMF specifications and tolerances (IEC 60584-1)
32、EN ISO 13943, Fire safety Vocabulary (ISO 13943) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 13943 and the following apply. 3.1 product material, composite or assembly about which information is required 3.2 material basic single substance or
33、a uniformly dispersed mixture of substances e.g. metal, stone, wood, concrete, mineral wool 3.3 composite combination of materials which are generally recognised as discrete entities e.g. coated or laminated materials 3.4 assembly fabrication of materials and/or composites e.g. sandwich panels 3.5 e
34、xposed surface surface of the product which is subjected to the heating conditions of the test 3.6 test specimen representative piece of the sample (prepared for testing in accordance with instruction) DIN EN 16733:2016-07 EN 16733:2016 (E) 6 3.7 smouldering combustion of a material without flame an
35、d with or without visible light. This includes glowing combustion Note 1 to entry: Smouldering is generally evidenced by an increase in temperature and/or by the presence of effluents. 3.8 progressive smouldering self-propagating exothermic oxidation that is not accompanied by flaming combustion Not
36、e 1 to entry: It can be accompanied by glowing. 3.9 sustained flaming persistence of flaming for a period greater than 10 s 3.10 flame spread propagation of flame away from the source of sustained flaming 3.11 glowing combustion combustion of a material in the solid phase without flame but with emis
37、sion of light from the combustion zone 4 Principle One test specimen is vertically mounted and exposed to constant heat from a propane gas burner with its flame impinging on the specimen surface. Smouldering is detected by measuring temperatures by using thermocouples installed at defined distances
38、within the vertical test specimen and the observation of sustained flaming following re-ignition. 5 Test apparatus 5.1 Main apparatus NOTE All dimensions given in the following description are nominal unless tolerances are specified. The main apparatus is shown in Figures 1, 2 and 3. The apparatus i
39、ncludes: specimen holder; propane burner; wire mesh box (Figure 4); six thermocouples inside the specimen connected to a recording device (Figure 5); specimen holder frame to hold flexible or thin products in place (Figure 6). DIN EN 16733:2016-07 EN 16733:2016 (E) 7 5.1.1 Test specimen holder The s
40、pecimen mounting frame shall hold the specimen 50 mm above the test floor. This shall be accomplished by the use of two spacers or supporting devices, maximum 50 mm high x 50 mm wide and 100 mm long placed at the outer edge of the specimen, mounted on the floor upon which the bottom edge of the test
41、 specimen shall be located. (See Figures 1, 2 and 3). The test specimen shall not be continuously covered from top to bottom on the vertical side edges. The maximum cover on the vertical edges of the specimens shall consist of two clamps on each side each not more than 40 mm in height. Neither the t
42、op nor the bottom edges of the specimen shall be covered in any way. For thin or flexible test specimens, a planar surface shall be maintained. This can be achieved either by clamping between the sections of flat steel frame, 800 mm 300 mm, with a frame width of 10 mm and a thickness of 3 mm or by u
43、sing a single frame with pins on all four edges upon which the specimen shall be supported. (See Figure 6). 5.1.2 Wire mesh box For loose fill material the specimen holder shown in Figure 4 shall be used. The specimen holder shall consist of a steel framed wire mesh box, 800 mm high, 300 mm wide and
44、 100 mm deep. The top of the wire mesh box is open and remains open for the test. The wire mesh shall be zinc-coated with a width of mesh 9 mm 1 mm and a wire size 1 mm 0,2 mm. (See Figure 4). 5.1.3 Propane burner The burner shall be of the Teclu type (see Figure 7). The nominal inner diameter of th
45、e burner is 10,3 mm and the nominal inner diameter of the outer tube is 14,95 mm. The gas nozzle shall have an inner diameter of 0,5 mm 0,1 mm. The straight part of the burner tube shall have a length of 100 mm 10 mm, the conical part shall have a length of 35 mm 3 mm. The lower part of the opening
46、of the conical part shall have an inner diameter of 30 mm 5 mm. Propane having a purity of at least 95 % shall be used. The air supply to the burner shall be fully open. The propane flow rate of the burner shall be 100 g/h 5 g/h. (0,85 l/min 0,05 l/min). 5.1.4 Thermocouples in the test specimen Six
47、sheathed type K thermocouples according to EN 60584-1 with outer diameter of 1,5 mm shall be positioned within the test specimen. The thermocouples shall be located in the positions as shown in Figure 5. The tips of the thermocouples shall be positioned on the centre line of the test specimen at 100
48、 mm intervals measured vertically from the centre line of the burner (see Figure 5). These thermocouples shall be within the test specimen at half the actual specimen thickness. The thermocouples shall be mounted from the reverse face of the test specimen. The thermocouples shall be supported by a f
49、ramework at the rear of the test specimen, 40 mm x 80 mm x 855 mm. This framework shall be positioned at least 50 mm from the reverse face of the test specimen. 5.1.5 Recording device A recording device shall be used to record the temperatures during the test. The recording device shall be capable of recording data at least every 30 s. DIN EN 16733:2016-07 EN 16733:2016 (E) 8 5.2 Additional equipment 5.2.1 Flowmeter The flow of propane to the burner shall be controlled and measured with a flowmeter. This shall have an accu
