1、BS EN 1856-2:2009ICS 91.060.40NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDChimneys Requirements for metal chimneysPart 2: Metal flue liners and connecting flue pipesThis British Standard was published under the authority of the Standards Policy and Strategy
2、Committee on 30 April 2010 BSI 2010ISBN 978 0 580 63793 3Amendments/corrigenda issued since publicationDate CommentsBS EN 1856-2:2009National forewordThis British Standard is the UK implementation of EN 1856-2:2009. It supersedes BS EN 1856-2:2004 which is withdrawn.BS EN 1856-2:2004 also superseded
3、 those requirements and recommendations relating to chimneys that were removed from BS 715:1993 . BS 715:1993 was amended and republished as BS 715:2005 leaving only requirements relating to flue boxes.The UK participation in its preparation was entrusted by Technical Committee B/506, Chimneys, to i
4、ts Subcommittee B/506/5, Chimneys and their components having inner linings of metal.A list of organizations represented on this subcommittee can be obtained on request to its secretary.EN 1856-2 is a candidate “harmonized” European standard and fully takes into account the requirements of the Europ
5、ean Commission mandate M/105, Chimneys, flues and specific products, given under the EU Construction Products Directive (89/106/EEC), and intended to lead to CE marking. The date of applicability of EN 1856-2 as a “harmonized“ European standard, i.e. the date after which this standard may be used fo
6、r CE marking purposes, is subject to an announcement in the Official Journal of the European Communities.EN 1856-2 is the subject of transitional arrangements agreed under the European Commission mandate. The Member States have agreed a nominal transition period for the co-existence of EN 1856-2 and
7、 their corresponding national standard(s). It is intended that this period will comprise a nominal nine month period during which any required changes to national regulations are to be made, followed by a further nominal twelve month period for the implementation of CE marking. At the end of this co
8、-existence period, the national standard(s) will be withdrawn. In the UK there are no corresponding national standards.National annex NA (informative) identifies the material specification previously required in BS 715:1993 and the BS 7566 series of standards for stainless steel flue liners and conn
9、ecting flue pipes.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.121BS EN 1856-1:2003 also partially superseded BS 715:1993 2Th
10、e BS 7566 series of standards is withdrawn, being replaced by BS EN 15287-1:2007 EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1856-2June 2009ICS 91.060.40 Supersedes EN 1856-2:2004 English VersionChimneys - Requirements for metal chimneys - Part 2: Metalflue liners and connecting flue pipesCond
11、uits de fume - Prescriptions relatives aux conduits defume mtalliques - Partie 2: Tubages et lments deraccordement mtalliquesAbgasanlagen - Anforderungen an Metall-Abgasanlagen -Teil 2: Innenrohre und Verbindungsstcke aus MetallThis European Standard was approved by CEN on 7 May 2009.CEN members are
12、 bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the
13、 CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same sta
14、tus as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, S
15、lovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide f
16、or CEN national Members.Ref. No. EN 1856-2:2009: EEN 1856-2:2009 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .7 4 Manufacturers declaration for type test .7 5 Dimensions and tolerances 7 6 Performance requirements .8 6.1 Mechanical resist
17、ance and stability.8 6.1.1 Rigid flue liners and rigid connecting flue pipes and fittings .8 6.1.2 Flexible flue liners8 6.2 Resistance to fire .9 6.2.1 Rigid flue liners and fittings .9 6.2.2 Rigid connecting flue pipes and fittings .9 6.2.3 Flexible flue liners and fittings .9 6.3 Gas tightness .9
18、 6.4 Safety in use .9 6.4.1 Thermal performance at normal operating conditions 9 6.4.2 Accidental human contact . 10 6.4.3 Thermal resistance . 10 6.4.4 Water vapour diffusion resistance 10 6.4.5 Condensate penetration resistance 10 6.4.6 Flow resistance . 10 6.5 Durability . 11 6.5.1 Durability aga
19、inst corrosion 11 6.5.2 Freeze thaw resistance 13 6.5.3 Flue liner seals 13 7 Product information 13 7.1 Manufacturers instructions . 13 7.2 Minimum information to be included in the manufacturers documentation and instructions . 14 7.2.1 Rigid flue liners, rigid connecting flue pipes and fittings 1
20、4 7.2.2 Flexible flue liners and fittings 14 8 Marking and labelling . 14 8.1 Flue liners, rigid connecting flue pipes and fittings . 14 8.2 Chimney plate . 15 8.3 Packaging 15 9 Product designation . 15 10 Evaluation of conformity 18 10.1 General . 18 10.2 Type testing . 18 10.2.1 Initial type test
21、ing . 18 10.2.2 Further type testing 19 10.2.3 Sampling for type testing . 19 10.3 Factory production control (FPC) . 19 10.3.1 General . 19 BS EN 1856-2:2009EN 1856-2:2009 (E) 3 10.3.2 Equipment 20 10.3.3 Raw materials and components 20 10.3.4 Product testing and evaluation 20 10.3.5 Non conforming
22、 products 21 Annex A (normative) Test methods 22 A.1 Measure of diameter of flexible flue liner 22 A.1.1 Procedure . 22 A.1.2 Results 22 A.2 Gas tightness . 22 A.2.1 General . 22 A.2.2 Conditioning and apparatus . 22 A.2.3 Procedure . 22 A.2.4 Results 22 A.3 Tensile strength . 22 A.3.1 Test assembly
23、 22 A.3.2 Procedure . 23 A.3.3 Test results 23 A.4 Crushing resistance 23 A.4.1 Test apparatus . 23 A.4.2 Procedure . 23 A.4.3 Test results 23 A.5 Flexibility test . 24 A.5.1 Test apparatus . 24 A.5.2 Test conditioning . 24 A.5.3 Procedure . 24 A.5.4 Results 24 A.6 Torsion strength test . 25 A.6.1 T
24、est apparatus . 25 A.6.2 Test assembly 25 A.6.3 Procedure . 25 A.6.4 Results 26 A.7 Thermal performance test 26 A.7.1 Apparatus . 26 A.7.2 Test structures . 27 A.7.3 Test samples 28 A.7.4 Thermal test procedure . 28 Annex B (normative) Choice of size for type test and sampling . 32 B.1 General . 32
25、B.2 Thermal testing 32 B.3 Mechanical tests 32 B.4 Gas tightness . 32 B.5 Samples 32 B.6 Factory production control. 32 B.7 Nature of changes requiring further type test 32 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of Construction Products Dire
26、ctive (89/106/EEC) . 33 ZA.1 Scope and relevant characteristics . 33 ZA.2 Procedure(s) for attestation of conformity of rigid or flexible flue liners and rigid connecting flue pipes 36 ZA.2.1 System(s) of attestation of conformity 36 ZA.2.2 EC Declaration of conformity . 37 ZA.3 CE marking and label
27、ling 38 Bibliography 43 BS EN 1856-2:2009EN 1856-2:2009 (E) 4 Foreword This document (EN 1856-2:2009) has been prepared by Technical Committee CEN/TC 166 “Chimneys”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publicatio
28、n of an identical text or by endorsement, at the latest by December 2009, and conflicting national standards shall be withdrawn at the latest by March 2011. 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
29、not be held responsible for identifying any or all such patent rights. This document supersedes EN 1856-2:2004. 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 EC Directive 89/106/
30、EEC. For relationship with EC Directive 89/106/EEC, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium
31、, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 1856-2:2009EN 1
32、856-2:2009 (E) 5 Introduction This document has been prepared to be a harmonised standard to provide means of conforming to the essential requirements of the Construction Product Directive and associated EFTA regulations. The generic word “chimney”, when used in this document, refers to all products
33、 used to convey the products of combustion from appliances to the outside atmosphere, and thus includes all other terms of common use in the trade, such as: vents, flues, shafts, exhaust systems, ducts etc. This document addresses the durability against corrosion by the use of material specification
34、s for the metal flue liners and connecting flue pipes as well as an interim solution for testing products. Three corrosion resistance tests have been adopted from existing corrosion testing being undertaken in various member states (see Annex A of EN 1856-1:2009). BS EN 1856-2:2009EN 1856-2:2009 (E)
35、 6 1 Scope This document specifies the performance requirements for rigid or flexible metal flue liners, rigid metal connecting flue pipes and their fittings used to convey the products of combustion from appliances to the outside atmosphere (including their supports). Vitreous enamelled connecting
36、flue pipes are also covered by this document. Rigid flue liners can be used as flue liners for renovation or adaptation of existing chimneys and as flue liners of custom built chimneys. Flexible metal flue liners described in this document are exclusively for renovation or adaptation of existing chi
37、mneys. Flexible connecting flue pipes and extensible flexible products designed to be compressed or extended along their length are excluded from the scope of this document. This document also specifies the requirements for marking, manufacturers instructions, product information and evaluation of c
38、onformity. Single wall and multi-wall system chimney products are covered by EN 1856-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition o
39、f the referenced document (including any amendments) applies. EN 573-3, Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3: Chemical composition and form of products EN 1443, Chimneys General requirements EN 1856-1:2009, Chimneys Requirements for metal chimneys P
40、art 1: System chimney products EN 1859:2009, Chimneys Metal chimneys Test methods EN 10025-5, Hot rolled products of structural steels Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance EN 10088-1, Stainless steel Part 1: List of stainless stee
41、l EN 10154, Continuously hot-dip Aluminium-Silicon (AS) coated steel strip and sheet Technical delivery conditions EN 10209, Cold rolled low carbon steel flat products for vitreous enamelling Technical delivery conditions EN 14241-1, Chimneys Elastomeric seals and elastomeric sealants Material requi
42、rements and test methods Part 1: Seals in flue liners EN 15287-1:2007, Chimneys Design, installation and commissioning of chimneys Part 1: Chimneys for non-roomsealed heating appliances BS EN 1856-2:2009EN 1856-2:2009 (E) 7 3 Terms and definitions For the purposes of this document, the terms and def
43、initions given in EN 1856-1:2009 and the following apply. 3.1 bending radius minimum radius measured on the inner side of a flexible flue liner when bent 3.2 double skin flexible flue liner flexible flue liner consisting of two layers of metal, where the inner layer forming the flue is flat and cove
44、rs the corrugations 4 Manufacturers declaration for type test The manufacturer shall provide the relevant information according to 7.2 and, in addition, shall declare: a) the type of metals from which the flue liners and connecting flue pipes are made, according to EN 573-3, EN 10025-5, EN 10088-1,
45、EN 10154 and EN 10209, and the nominal and minimum skin/wall thickness(es); b) the internal diameter of the flue liners and connecting flue pipes and the nominal product size; c) the minimum thickness of rigid flue liners or rigid connecting flue pipes, the length of rigid flue liners or rigid conne
46、cting flue pipes as installed, rigid flue liner and connecting flue pipes external circumference, mass and design loads of the fittings or rigid flue liner sections; d) manufacturer declared design load for tensile strength for flexible flue liners (corresponding to the maximum length of suspended f
47、lexible flue liner, with a minimum of 10 m or more if declared by the manufacturer). 5 Dimensions and tolerances 5.1 The thickness of materials from which the flexible flue liner is made shall be not less than that declared by the manufacturer (see 4a). The thickness of rigid flue liners and rigid c
48、onnecting flue pipes shall be in accordance with 5.1 of EN 1856-1:2009. 5.2 The declared internal diameter of the flue liner, connecting flue pipe and fitting shall not vary by more than 5 mm from the nominal size. When measured in accordance with the procedure explained in A.1.1 the internal diamet
49、er of the flexible flue liner shall not be less than the manufacturers declared diameter (see 4b). For rigid connecting flue pipe, the requirements given in 5.2 of EN 1856-1:2009 shall apply. For flexible flue liners, the internal diameter shall be measured in accordance with A.1. Oval flexible liners shall only be factory made and the ovalisation ratio shall not exceed 1,5 maximum. 5.3 The installed length of rigid flue liners or rigid connecting flue pipes (measured on an assembly including at least one joint) shall be
