BS EN 13501-5 pdf free download

BS EN 13501-5-2016 pdf free download.Fire classification of construction products and building elements Part 5: Classification using data from external fire exposure to roofs tests.
This European Standard provides the fire performance classification procedures for roofs/roof coverings exposed to external fire based on the four test methods given in CEN/TS 1187:2012 and the relevant extended application rules.
For the classification of a roof/roof covering, only those test methods and those application rules need to be applied for which the corresponding classification is envisaged.
Products are considered in relation to their end use application.
NOTE The distinction between roofs with a steep slope and facades, in terms of the test and classification standard to be applied, may be subject to national regulations.
General information on the four test methods in CEN/TS 1187 is given in Annex A.
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.
CEN/TS 1187:2012, Test methods for external fire exposure to roofs
EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using test data from reaction to fire tests
EN 15725, Extended application reports on the fire performance of construction products and building elements
EN ISO 13943:2010, Fire safety – Vocabulary (ISO 13943:2008)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 13943:2010 and
CEN/TS 1187:2012 and the following apply.
3.1 external fire spread time  T E
time for external fire spread to the edge of the measuring zone (for test 3)
3.2 time to fire penetration
T p time for fire penetration as defined in 3. 5
3.3 non-combustible substrate or deck
substrate or deck classified A1 or A2-s1,d0 according to EN 13501-1 (for the purpose of this European Standard only)
3.4 combustible substrate or deck substrate or deck not satisfying the definition of ‘non-combustible product’ in 3.3
3.5 penetration by fire appearance on the underside of the specimen of any flaming or glowing other than that of the test flame, disregarding any test flame appearing through pre-existing openings in the test specimen (for test 4)
3.6 direct field of application outcome of a process (involving the application of defined rules) whereby a test result is deemed to be equally valid for variations in one or more of the product properties and/or intended end use applications
3.7 extended field of application outcome of a process (involving the application of defined rules that may incorporate calculation procedures) that predicts, for a variation of a product property and/or its intended end use application(s), a test result on the basis of one or more test results to the same test standard
3.8 extended application result predicted result for performance parameter obtained following the process of extended field of application
3.9 extended application report document reporting extended application results, including all details of the process leading to those results, prepared in accordance with EN 15725
4 Classes of external fire performance of roofs/roof coverings The classification set out in this European Standard is based upon the test methods contained in CEN/TS 1187. That standard incorporates four distinct test methods that correspond to different fire hazard scenarios. There is no direct correlation between the test methods and hence no generally acceptable hierarchy of classification between them. Products classified in a given class are deemed to satisfy all the requirements of any lower class for the same test method/fire hazard scenario. The classes with their corresponding fire performance are given in Table 1.
5 Test methods
5.1 General The four test methods given in CEN/TS 1187 are those to be used for classification purposes for roofs/roof coverings. The selection of the tests to be carried out is specified in 6.3. The classification parameters, the classes and the corresponding criteria are specified in Clauses 8 and 9.BS EN 13501-5 pdf download.