1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 1457-1:2012Chimneys Clay/ceramic fluelinersPart 1: Flue liners operating under dryconditions Requirements and testmethodsBS EN 1457-1:2012 BRITISH STANDARDNational foreword
2、This British Standard is the UK implementation of EN 1457-1:2012.Together with BS EN 1457-2:2012, it supersedes BS EN 1457:1999 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/506/3, Chimneys and their components having innerlinings of clay or ceramic
3、.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI Standar
4、dsLimited 2012ISBN 978 0 580 64233 3ICS 91.060.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 29 February 2012.Amendments issued since publicationDate Text affe
5、ctedBS EN 1457-1:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1457-1 January 2012 ICS 91.060.40 Supersedes EN 1457:1999English Version Chimneys - Clay/ceramic flue liners - Part 1: Flue liners operating under dry conditions - Requirements and test methodsConduits de fume - Conduits intri
6、eurs en terre cuite/cramique - Partie 1: Exigences et mthodes dessai pour utilisation en conditions sches Abgasanlagen - Keramik-Innenrohre - Teil 1: Innenrohre fr Trockenbetrieb - Anforderungen und Prfungen This European Standard was approved by CEN on 16 December 2011. CEN members are bound to com
7、ply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status 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-CENELE
8、C 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the s
9、ame status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
10、Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. 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
11、by any means reserved worldwide for CEN national Members. Ref. No. EN 1457-1:2012: EBS EN 1457-1:2012EN 1457-1:2012 (E) 2 Contents Page Foreword 51 Scope 62 Normative references 63 Terms and definitions .64 Flue liners and openings 84.1 Flue liner cross-sections 84.2 Inspection openings and chimney
12、junctions and inspection doors 85 Types of flue liner 96 Materials 107 Tolerances on dimensions 107.1 Transverse dimension 107.2 Height . 107.3 Angle of curvature 107.4 Straightness 117.5 Squareness of ends 117.6 Deviation from shape of cross section 117.7 Geometry of joints 118 Proof load 118.1 Str
13、aight flue liners 118.2 Curved flue liners 118.3 Minimum load for inspection opening sections 119 Gas tightness /leakage, thermal resistance and soot fire resistance for straight flue liners . 129.1 Initial test . 129.2 Final gas tightness after testing 129.2.1 General . 129.2.2 Final gas tightness
14、after sootfire testing . 129.2.3 Final gas tightness after thermal shock testing 1210 Durability . 1310.1 Corrosion resistance 1310.2 Freeze/Thaw resistance . 1311 Water absorption and bulk density . 1311.1 General . 1311.2 Water absorption 1311.3 Bulk density . 1412 Abrasion resistance . 1413 Flow
15、resistance . 1414 Thermal resistance . 1415 Evaluation of conformity 1415.1 General . 1415.2 Initial type testing . 1415.3 Further type tests 1415.4 Factory production control 1516 Test methods . 1516.1 Size . 15BS EN 1457-1:2012EN 1457-1:2012 (E) 3 16.2 Height 1516.3 Angle of curvature . 1616.4 Str
16、aightness . 1616.5 Squareness of ends 1616.6 Deviation from shape of cross-section . 1716.7 Proof load . 1916.7.1 Test specimen 1916.7.2 Testing equipment . 1916.7.3 Test procedure . 1916.8 Thermal testing 2016.8.1 Test flue 2016.8.2 Test equipment 2016.8.3 Assembly of test flue 2216.8.4 Thermal con
17、ditioning 2216.8.5 Measurement of leakage rate . 2316.8.6 Expression of results 2316.9 Corrosion resistance. 2316.9.1 Test specimens 2316.9.2 Test equipment 2416.9.3 Test procedure . 2416.9.4 Expression of results 2516.10 Water absorption . 2516.10.1 Test specimen 2516.10.2 Test equipment 2516.10.3
18、Test procedure . 2516.10.4 Expression of results 2516.11 Bulk density . 2616.11.1 Test specimen 2616.11.2 Test equipment 2616.11.3 Test procedure . 2616.11.4 Expression of results 2616.12 Abrasion resistance 2616.12.1 Test flue 2616.12.2 Test equipment 2716.12.3 Test procedure . 2716.12.4 Expression
19、 of results 2717 Designation 2818 Marking . 29Annex A (normative) Sampling procedures for an AQL of 10 % and inspection level S2 30A.1 Acceptability determination . 30A.1.1 Single sampling . 30A.1.2 Double sampling 30A.2 Normal inspection . 30A.3 Normal to reduced inspection 31A.4 Reduced to normal
20、inspection . 32A.5 Tightened inspection 32A.6 Tightened to normal inspection . 32A.7 Discontinuation of inspection 32Annex B (normative) Thermal resistance . 33B.1 Method 1: simplified calculation for flue liners without cavities 33B.2 Method 2: thermal resistance of flue liners with or without cavi
21、ties . 33B.2.1 General . 33B.2.2 Data . 34B.2.3 Specific conditions for the cavities . 35B.2.4 Calculations . 38B.3 Method Approximate thermal resistance values . 38Annex C (normative) Measurement of the coefficient of friction of chimneys . 40BS EN 1457-1:2012EN 1457-1:2012 (E) 4 Annex D (informati
22、ve) Comparison with designation given in EN 1443:2003 . 42Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 43ZA.1 Scope and relevant characteristics 43ZA.2 Procedure of attestation of conformity of clay/ceramic flue liners
23、 and fittings 44ZA.2.1 System of attestation of conformity . 44ZA.2.2 EC Certificate and Declaration of conformity 45ZA.3 CE Marking and labelling . 46Bibliography . 49BS EN 1457-1:2012EN 1457-1:2012 (E) 5 Foreword This document (EN 1457-1:2012) has been prepared by Technical Committee CEN/TC 166 “C
24、himneys”, the secretariat of which is held by ASI. 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 July 2012, and conflicting national standards shall be withdrawn at the latest by July 2012. Atte
25、ntion 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 supersedes EN 1457:1999. This document has been prepared under a mandate giv
26、en to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. EN 1457 is made of two parts: EN 1457-1, Chimney Clay/cer
27、amic flue liners Part 1: Flue liners operating under dry conditions Requirements and test methods; EN 1457-2, Chimney Clay/ceramic flue liners Part 2: Flue liners operating under wet conditions Requirements and test methods. The main changes with respect to the previous edition are: EN 1457 has been
28、 split in 2 parts: EN 1457-1 is a product standard for clay/ceramic flue liners operating under dry conditions. 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
29、, Croatia, 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, Turkey and the United Kingdom. BS EN 1457-1:2
30、012EN 1457-1:2012 (E) 6 1 Scope This European Standard is a product standard for clay/ceramic flue liners operating under dry conditions with solid walls or walls with vertical perforations for use in the construction of multiwall chimneys and flue pipes which serve to convey products of combustion
31、from fireplaces or heating appliances to the outside atmosphere by negative or positive pressure. It includes the flue liners used for domestic and industrial chimneys which are not structurally independent (free-standing). This European Standard specifies the performance requirements for factory ma
32、de flue liners and chimney fittings. Testing including thermal testing with or without insulation, marking and inspection are covered by this standard. This part does not cover flue liners operating under wet conditions. 2 Normative references The following referenced documents are indispensable for
33、 the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 312, Particleboards Specifications EN 1443:2003, Chimneys General requirements EN 10088-1, Stainless s
34、teels Part 1: List of stainless steels EN 14297:2004, Chimneys Freeze-thaw resistance test method for chimney products EN ISO 6946, Building components and building elements Thermal resistance and thermal transmittance Calculation method (ISO 6946) EN ISO 7500-1, Metallic materials Verification of s
35、tatic uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring system (ISO 7500-1) ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspecti
36、on 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1443:2003 and the following apply. 3.1 nominal size numerical designation of size which is a convenient round number equal to or approximately equal to either: a) the internal diameter in millimetres
37、of circular flue liners; b) the internal width in millimetres of square flue liners; c) the internal width and breadth in millimetres of the cross section of rectangular flue liners 3.2 nominal height numerical designation of the internal height in millimetres of a straight flue liner which is a con
38、venient round number approximately equal to the internal height of the flue liner NOTE See Figure 1. BS EN 1457-1:2012EN 1457-1:2012 (E) 7 Key 1 internal height Figure 1 Internal height 3.3 nominal angle of curvature angle subtended in degrees by a curved flue liner at the centre of the curve NOTE S
39、ee Figure 2. Key 1 angle of curvature 2 curved flue liner Figure 2 Angle of curvature 3.4 wet operating condition condition when the chimney is designed to operate normally with the temperature of the inner surface of the flue liner above the water dew point 3.5 dry operating condition condition whe
40、n the chimney is designed to operate normally with the temperature of the inner surface of the flue liner at and below the water dew point BS EN 1457-1:2012EN 1457-1:2012 (E) 8 4 Flue liners and openings 4.1 Flue liner cross-sections Flue liners shall be either: a) circular or square in cross-sectio
41、n with rebated or spigot and socket ends; b) square or rectangular in cross-section with rebated ends and rounded internal corners; c) circular, square or rectangular in cross-section with butt joints and jointed with a sleeve; d) circular or square in cross-section with taper joints. Square Rectang
42、ular Circular Wall with vertical perforations Figure 3 Examples of cross-section configuration Rebated Spigot is the safety factor = 5; H is the height of chimney in metres; G is the weight per metre in kilograms per metre. 9 Gas tightness /leakage, thermal resistance and soot fire resistance for st
43、raight flue liners 9.1 Initial test Prior to thermal testing a test flue constructed in accordance with 16.8.3 with N1 and N2 liners shall have a leakage rate not greater than 2 m3 s-1. m-2 10-3of internal surface area tested at a differential pressure of (40 2) Pa when tested as described in 16.8.5
44、. Prior to thermal testing a test flue constructed in accordance with 16.8.3 with P1 liners shall have a leakage rate not greater than 0,006 m3. s-1. m-2. x 10-3of internal surface area tested at a differential pressure of (200 10) Pa when tested as described in 16.8.5. Where chimney fittings are fi
45、red in a plant alongside straight flue liners using the same material and firing process, the gas tightness/leakage, thermal shock resistance and soot fire resistance shall be deemed to be that of straight flue liners when tested in accordance with 16.8.3. If the chimney fittings are not normally fi
46、red alongside straight flue liners, straight flue liners or short lengths of straight flue liner shall be made for test purposes using the same material and firing process as for chimney fittings shall be tested for complying with 9.2.1. 9.2 Final gas tightness after testing 9.2.1 General When flue
47、liners are tested for soot fire resistance, thermal shock testing need not be carried out. 9.2.2 Final gas tightness after sootfire testing When tested in accordance with 16.8 flue liners A1 and B1 shall have a leakage rate after sootfire testing not greater than the values given in Table 3 for the
48、appropriate type of flue liner, test temperature and differential pressure. Flue liners shall be tested with insulation as described in 16.8.3 or they shall be tested without insulation. If they are tested without insulation they shall be marked accordingly. The precision for the appropriate testing
49、 differential pressure is that given in 9.1. 9.2.3 Final gas tightness after thermal shock testing When tested in accordance with 16.8 flue liners not included in 9.2 shall have a leakage rate after thermal shock testing not greater than the values given in Table 3 for the appropriate type of flue liner, te
