SIST EN 16733:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskusi odziva gradbenih proizvodov na ogenj - Ugotavljanje dovzetnosti gradbenih proizvodov za neprekinjeno tlenjePrüfungen zum Brandverhalten von Bauprodukten - Bestimmung der Neigung eines Bauprodukts zum kontinuierlichen SchwelenEssais de réaction au feu des produits de construction - Détermination de la propension d'un produit de construction à subir un feu couvant continuReaction to fire tests for building products - Determination of a building product's propensity to undergo continuous smouldering13.220.50Požarna odpornost gradbenih materialov in elementovFire-resistance of building materials and elementsICS:Ta slovenski standard je istoveten z:EN 16733:2016SIST EN 16733:2016en,fr,de01-julij-2016SIST EN 16733:2016SLOVENSKI
STANDARD



SIST EN 16733:2016



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16733
May
t r s x ICS
s uä t t rä w r English Version
Reaction to fire tests for building products æ Determination of a building product 5s propensity to undergo continuous smouldering Essais de réaction au feu pour les produits de construction æ Détermination de la propension d 5un produit de construction à subir un feu couvant continu Prüfungen zum Brandverhalten von Bauprodukten æ Bestimmung der Neigung eines Bauprodukts zum kontinuierlichen Schwelen This European Standard was approved by CEN on
s t February
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
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CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y u uã t r s x ESIST EN 16733:2016



EN 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 . 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 extinguishing 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 extended 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
SIST EN 16733:2016



EN 16733:2016 (E) 3 European foreword This document (EN 16733:2016) has been prepared by Technical Committee CEN/TC 127 “Fire 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 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 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 classification 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 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 is 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: 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, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16733:2016



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 Önorm B 3800. It specifies a test for determining the propensity of products to smoulder 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 drawn 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 and 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 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 means, such as fire extinguishers etc. In some cases, smouldering may be difficult to extinguish completely and immersion in water may be necessary. SIST EN 16733:2016



EN 16733:2016 (E) 5 1 Scope This European Standard specifies a test method to determine the propensity (ability) of a building product 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 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 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) 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 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 exposed 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) SIST EN 16733:2016



EN 16733:2016 (E) 6 3.7 smouldering combustion of a material without flame and 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 Note 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 emission 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 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 includes: — 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). SIST EN 16733:2016



EN 16733:2016 (E) 7 5.1.1 Test specimen holder The specimen 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 specimen shall be located.
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