1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 494:2012Fibre-cement profiled sheetsand fittings Productspecification and test methodsCopyright European Committee for Standardization Provided by IHS under license with CE
2、NNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 494:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 494:2012. It supersedes BS EN 494:2004, which is withdrawn.The UK participation in its preparation was entrusted to
3、 Technical Committee B/542/4, Fibre reinforced cement sheeting for roofing.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct
4、application. The British Standards Institution 2012. Published by BSI Standards Limited 2012.ISBN 978 0 580 72598 2 ICS 91.100.40 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strat
5、egy Committee on 30 November 2012.Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 494:2012EUROPEAN STANDARD N
6、ORME EUROPENNE EUROPISCHE NORM EN 494 October 2012 ICS 91.100.40 Supersedes EN 494:2004+A3:2007English Version Fibre-cement profiled sheets and fittings - Product specification and test methods Plaques profiles en fibres-ciment et accessoires - Spcifications du produit et mthodes dessai Faserzement-
7、Wellplatten und dazugehrige Formteile - Produktspezifikation und Prfverfahren This European Standard was approved by CEN on 11 August 2012. 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 natio
8、nal 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). A vers
9、ion 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, Cyprus, C
10、zech 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 Kingdom.
11、 EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 494:2012: ECopyright Eu
12、ropean Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 494:2012EN 494:2012 (E) 2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms and definitions .64 Symbols and abbreviations
13、 75 Product requirements .85.1 General 85.1.1 Composition .85.1.2 Appearance and finish 85.2 Dimensions and tolerances 95.2.1 General 95.2.2 Categorisation by height of profile 95.2.3 Thickness .95.2.4 Tolerances on nominal dimensions 105.3 Physical requirements and characteristics for fibre-cement
14、profiled sheets 115.3.1 General . 115.3.2 Apparent density. 115.3.3 Mechanical characteristics 115.3.4 Water impermeability . 135.4 Durability requirements . 135.4.1 General . 135.4.2 Freeze-thaw . 135.4.3 Heat-rain 135.4.4 Warm water 145.4.5 Soak-dry . 145.5 Summary of characteristics and classific
15、ation . 145.5.1 Summary of characteristics . 145.5.2 Classification . 145.6 Fire and safety . 155.6.1 External fire performance 155.6.2 Reaction to fire 155.6.3 Release of dangerous substances 155.7 Product information 156 Evaluation of conformity 166.1 General . 166.2 Initial Type testing 166.3 Fac
16、tory Production Control (FPC) 176.3.1 General . 176.3.2 Acceptance tests 176.3.3 Equipment . 186.3.4 Raw materials and components 196.3.5 Product testing and evaluation . 196.3.6 Non-conforming products . 196.4 Inspection of a consignment of finished products . 197 Test methods . 197.1 General . 197
17、.2 Dimensional tests . 197.2.1 Dimensional tests for sheets . 19Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 494:2012EN 494:2012 (E) 3 7.2.2 Dimensional tests for fittin
18、gs . 227.3 Tests for physical performance and characteristics . 227.3.1 Apparent density . 227.3.2 Mechanical characteristics . 237.3.3 Water impermeability 277.3.4 Warm water 277.3.5 Soak-dry . 287.4 Tests for climatic performance 307.4.1 Freeze-thaw 307.4.2 Heat-rain . 317.4.3 Freeze-thaw test for
19、 fittings 327.5 Test for fire performance 337.5.1 Test for external fire performance . 337.5.2 Test for reaction to fire . 338 Marking, labelling and packaging 38Annex A (normative) Figures . 40Annex B (normative) Consignment inspection sampling . 52Annex C (normative) Statistical method for determi
20、ning the corresponding wet values or revised dry specifications for the breaking load and/or bending moment when carrying out the dry method of test for quality control purposes 53C.1 Procedure . 53C.2 Determination of the correlation between the results of testing wet and dry specimens . 53C.3 Dete
21、rmination of the regression line . 54C.4 Determination of a value for wet testing from an obtained value for dry testing . 54C.5 Determination of the minimum value specified for dry testing xstdcorresponding to the minimum value specified for wet testing in this document ystd55Annex ZA (informative)
22、 Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 57ZA.1 Scope and relevant characteristics . 57ZA.2 Procedure for the attestation of conformity of fibre cement profiled sheets and fittings . 59ZA.2.1 Systems of attestation of conformity 59ZA.2.
23、2 EC Declaration of conformity . 62ZA.3 CE marking . 64Bibliography 66Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 494:2012EN 494:2012 (E) 4 Foreword This document (EN 4
24、94:2012) has been prepared by Technical Committee CEN/TC 128 “Roof covering products for discontinuous laying and products for wall cladding“, the secretariat of which is held by NBN. This European Standard shall be given the status of a national standard, either by publication of an identical text
25、or by endorsement, at the latest by April 2013, and conflicting national standards shall be withdrawn at the latest by April 2013. 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 fo
26、r identifying any or all such patent rights. This document supersedes EN 494:2004+A3:2007. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU
27、 Directive(s), see informative Annex ZA which is an integral part of this document. In comparison to the previous edition, the following paragraphs have been changed or added: 3.10, 3.11,5.1.1, Table 2, 5.3.3.1, 5.3.3.4, 5.6.3, Table 6, 6.3.2, 7.4.2.1 and Annex ZA. A distinction has been made betwee
28、n product appraisal (type tests) and routine quality control requirements (acceptance tests). The performance of a roof or another building part constructed with these products depends not only on the properties of the product as required by this document, but also on the design, construction and in
29、stallation of the components as a whole in relation to the environment and conditions of use. 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,
30、 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 Ki
31、ngdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 494:2012EN 494:2012 (E) 5 1 Scope This European Standard specifies the technical requirements and establishes methods
32、 of control and test as well as acceptance conditions for fibre-cement profiled sheets and their fibre-cement fittings for one or more of the following uses: roofing; internal wall finishes; external wall and ceiling finishes. For the purpose of this European Standard, fibre-cement profiled sheets a
33、re classified according to their height of corrugation and their mechanical characteristics. This European Standard covers fibre-cement profiled sheets reinforced with fibres of different type as specified in 5.1.1, with and without factory applied coating. This European Standard does not include ca
34、lculations with regard to works, design requirements, installation techniques, wind uplift or rain proofing of the installed sheets. NOTE Some of these requirements can be applied, after agreement, to curved sheets for specific applications. 2 Normative references The following documents, in whole o
35、r 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 197-1, Cement Part 1: Composition, spec
36、ifications and conformity criteria for common cements CEN/TS 1187 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 13501-5, Fire classification of cons
37、truction products and building elements Part 5: Classification using data from external fire exposure to roofs tests EN 13823, Reaction to fire tests for building products Building products excluding floorings exposed to the thermal attack by a single burning item EN 15057, Fibre cement profiled she
38、ets Impact resistance test method EN ISO 1716, Reaction to fire tests for products Determination of the gross heat of combustion (calorific value) (ISO 1716) ISO 2602, Statistical interpretation of test results Estimation of the mean Confidence interval ISO 2859-1, Sampling procedures for inspection
39、 by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection ISO 3951-1, Sampling procedures for inspection by variables Part 1: Specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single qua
40、lity characteristic and a single AQL Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 494:2012EN 494:2012 (E) 6 3 Terms and definitions For the purposes of this document, th
41、e following terms and definitions apply. 3.1 profiled sheet component the cross section of which consists of corrugations as in the examples shown in Figures A.1 to A.7 Note 1 to entry: The corrugations are defined by their pitch a and their height h. 3.2 acceptance test test to establish whether a
42、batch of sheets, drawn either from continuous production or from a consignment, conforms to a specification Note 1 to entry: Test methods and specification limit values are specified in this document. Sampling levels and acceptance criteria are given in 6.3.2. 3.3 type test test carried out to demon
43、strate conformity with the requirements of this document or for the approval of a new product and/or when a fundamental change is made in formulation and/or method of manufacture, the effects of which cannot be predicted on the basis of previous experience Note 1 to entry: The test is performed on t
44、he as delivered product, but is not required for each production batch. 3.4 acceptable quality level (AQL) quality level which in a sampling plan corresponds to a specified, relatively high probability of acceptance Note 1 to entry: It is the maximum percent defective (or maximum number of defects p
45、er 100 units) that for purposes of sampling inspection can be considered satisfactory as a process average. Note 2 to entry: A sampling scheme with an AQL of 4 % means that batches containing up to 4 % defective items have a high probability of acceptance. 3.5 as delivered same condition as the prod
46、ucer intends to supply the product after completing all aspects of the process including maturing and, when appropriate, painting 3.6 short sheet sheet having a length less than or equal to 0,9 m 3.7 long sheet sheet having a length greater than 0,9 m 3.8 upper face face normally exposed to the weat
47、her 3.9 under face reverse of the upper face Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 494:2012EN 494:2012 (E) 7 3.10 N.T. fibre-cement slates and fittings of type NT
48、 cover products made using a non-asbestos technology 3.11 ambient laboratory conditions ambient laboratory conditions are a temperature of (23 5) C and a relative humidity of (50 20) % 4 Symbols and abbreviations a 1. pitch of the corrugations in millimetres 2. one of the coefficients of the regression line (Annex C
