1、BSI Standards PublicationBS EN 494:2012+A1:2015BS EN 494:2012Fibre-cement profiled sheetsand fittings Productspecification and test methodsBS EN 494:2012+A1:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 494:2012+A1:2015. It supersedes BS EN 494:2012, whic
2、h is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by .The UK participation in its preparation was entru
3、sted by Technical Committee B/542, Roofing and cladding products for discontinuous laying, to Subcommittee B/542/4, Fibre reinforced cement sheeting for roofing.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does not purport to i
4、nclude all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 88308 8ICS 91.100.40Compliance with a British Standard cannot confer immunity from legal obligations.Thi
5、s British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2012.Amendments/corrigenda issued since publicationDate Text affected31 October 2015 Implementation of CEN amendment A1:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 494:2012
6、+A1 September 2015 ICS 91.100.40 Supersedes EN 494:2012English 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-Wellplatten und dazugehrige Formteile -
7、Produktspezifikation und Prfverfahren This European Standard was approved by CEN on 11 August 2012 and includes Amendment 1 approved by CEN on 6 June 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the s
8、tatus of a national 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,
9、 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cr
10、oatia, 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
11、United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION 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.
12、 EN 494:2012+A1:2015 EBS EN 494:2012+A1:2015EN 494:2012+A1:2015 (E) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 Symbols and abbreviations . 7 5 Product requirements . 8 5.1 General 8 5.1.1 Composition 8 5.1.2 Appearance and finish . 8 5.2 Di
13、mensions and tolerances . 9 5.2.1 General 9 5.2.2 Categorisation by height of profile . 9 5.2.3 Thickness . 9 5.2.4 Tolerances on nominal dimensions 10 5.3 Physical requirements and characteristics for fibre-cement profiled sheets . 11 5.3.1 General . 11 5.3.2 Apparent density 11 5.3.3 Mechanical ch
14、aracteristics . 11 5.3.4 Water impermeability 12 5.4 Durability requirements . 12 5.4.1 General . 12 5.4.2 Freeze-thaw 12 5.4.3 Heat-rain . 13 5.4.4 Warm water . 13 5.4.5 Soak-dry . 13 5.5 Summary of characteristics and classification 13 5.5.1 Summary of characteristics 13 5.5.2 Classification 13 5.
15、6 Fire and safety . 14 5.6.1 External fire performance 14 5.6.2 Reaction to fire 14 5.6.3 Release of dangerous substances . 14 5.7 Product information . 14 6 Assessment and verification of constancy of performance - AVCP 15 6.1 General . 15 6.2 Type testing 15 6.2.1 General . 15 6.2.2 Test samples,
16、testing and compliance criteria 16 6.2.3 Test reports 16 6.3 Factory production control (FPC) 16 6.3.1 General . 16 6.3.2 Requirements 17 6.3.3 Product specific requirements 19 6.3.4 Initial inspection of factory and of FPC 19 6.3.5 Continuous surveillance of FPC . 20 BS EN 494:2012+A1:2015EN 494:20
17、12+A1:2015 (E) 3 6.3.6 Procedure for modifications . 20 6.4 Inspection of a consignment of finished products 20 7 Test methods 21 7.1 General . 21 7.2 Dimensional tests . 21 7.2.1 Dimensional tests for sheets. 21 7.2.2 Dimensional tests for fittings . 24 7.3 Tests for physical performance and charac
18、teristics 24 7.3.1 Apparent density 24 7.3.2 Mechanical characteristics 25 7.3.3 Water impermeability 28 7.3.4 Warm water 29 7.3.5 Soak-dry . 30 7.4 Tests for climatic performance 31 7.4.1 Freeze-thaw 31 7.4.2 Heat-rain 33 7.4.3 Freeze-thaw test for fittings 34 7.5 Test for fire performance 34 7.5.1
19、 Test for external fire performance . 34 7.5.2 Test for reaction to fire . 35 8 Marking, labelling and packaging . 40 Annex A (normative) Figures 41 Annex B (normative) Consignment inspection sampling 53 Annex C (normative) Statistical method for determining the corresponding wet values or revised d
20、ry specifications for the breaking load and/or bending moment when carrying out the dry method of test for quality control purposes 54 C.1 Procedure 54 C.2 Determination of the correlation between the results of testing wet and dry specimens 54 C.3 Determination of the regression line 55 C.4 Determi
21、nation of a value for wet testing from an obtained value for dry testing 55 C.5 Determination of the minimum value specified for dry testing xstdcorresponding to the minimum value specified for wet testing in this document ystd. 56 Annex ZA (informative) !Clauses of this European Standard addressing
22、 the provisions of the EU Construction Products Regulation“ . 58 ZA.1 Scope and relevant characteristics 58 ZA.2 Procedure for AVCP of fibre - cement profiled sheets and fittings . 60 ZA.2.1 Systems of AVCP 60 ZA.2.2 Declaration of performance (DoP) . 65 ZA.3 CE marking and labelling . 68 Bibliograp
23、hy . 71 BS EN 494:2012+A1:2015EN 494:2012+A1:2015 (E) 4 European foreword This document (EN 494:2012+A1:2015) 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 S
24、tandard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2016, and conflicting national standards shall be withdrawn at the latest by June 2017. Attention is drawn to the possibility that some of the elements of th
25、is 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 includes Amendment 1 approved by CEN on 6 June 2015. This document supersedes !EN 494:2012“. The start and finish of text introduced or alter
26、ed by amendment is indicated in the text by tags !“. !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 the EU Construction Products Regulation 305/2011. For relationship with the EU
27、 Regulation 305/2011, see informative Annex ZA, which is an integral part of this document.“ !When comparing EN 494:2004+A3:2007 and the previous edition EN 494:2012, the following paragraphs had 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
28、Annex ZA.“ A distinction has been made between 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
29、, but also on the design, construction and installation 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:
30、 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,
31、Sweden, Switzerland, Turkey and the United Kingdom. BS EN 494:2012+A1:2015EN 494:2012+A1:2015 (E) 5 1 Scope This European Standard specifies the technical requirements and establishes methods of control and test as well as acceptance conditions for fibre-cement profiled sheets and their fibre-cement
32、 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 are classified according to their height of corrugation and their mechanical characteristics. This European St
33、andard 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 calculations with regard to works, design requirements, installation techniques, wind uplift or rain proofing o
34、f 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 or in part, are normatively referenced in this document and are indispensable for its application. For dated r
35、eferences, 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, specifications and conformity criteria for common cements CEN/TS 1187 Test methods for external fire exposure to
36、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 construction products and building elements Part 5: Classification using data from external fire exposure to roof
37、s 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 sheets - Impact resistance test method EN ISO 1716, Reaction to fire tests for products Determination of the gro
38、ss 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 by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
39、 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 quality characteristic and a single AQL BS EN 494:2012+A1:2015EN 494:2012+A1:2015 (E) 6 3 Terms and definition
40、s For the purposes of this document, the following terms and definitions apply. 3.1 profiled sheet component the cross section of which consists of corrugations as in the examples shown in !Figure A.1“ Note 1 to entry: The corrugations are defined by their pitch a and their height h. 3.2 acceptance
41、test test to establish whether a 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 !6.2.2“. 3.3
42、type test test carried out to demonstrate 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 t
43、o entry: The test is performed on the 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 defect
44、ive (or maximum number of defects per 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 d
45、elivered same condition as the producer 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 BS EN 494:201
46、2+A1:2015EN 494:2012+A1:2015 (E) 7 3.8 upper face face normally exposed to the weather 3.9 under face reverse of the upper face 3.10 N.T. fibre-cement slates and fittings of type NT cover products made using a non-asbestos technology 3.11 ambient laboratory conditions ambient laboratory conditions a
47、re 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) b 1. dimension of the specimen parallel to the supports in either the breaking load test or the bend
48、ing moment test in millimetres 2. one of the coefficients of the regression line (Annex C) d apparent density of the sheet in grams per cubic centimetres e thickness of the sheet in millimetres f increase in deflection between applying 20 % and 70 % of the specified load in the breaking load test in
49、 millimetres F load at rupture from either the breaking load test or the bending moment test in newtons Fsload at rupture per metre width from the breaking load test in newtons h height of the corrugations in millimetres hodheight of the edge of the descending corrugation in millimetres homheight of the edge of the ascending corrugation in millimetres l length of the sheet in millimetres lsclear span between the supports in the breaking load test or span between the centre of the supports in the bending moment test in millimetres L1upper estima
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