SIST EN 1457-1:2012

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Abgasanlagen - Keramik-Innenrohre - Teil 1: Innenrohre im Trockenbetrieb - Anforderungen und PrüfungenConduits de fumée - Conduits intérieurs en terre cuite/céramique - Partie 1 : Exigences et méthodes d'essai pour utilisation en conditions sèchesChimneys - Clay/ceramic flue liners - Part 1: Flue liners operation under dry conditions - Requirements and test methods91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:Ta slovenski standard je istoveten z:EN 1457-1:2012SIST EN 1457-1:2012en,fr,de01-maj-2012SIST EN 1457-1:2012SLOVENSKI
STANDARDSIST EN 1457:1999/A1:2003/AC:2007SIST EN 1457:1999/AC:1999SIST EN 1457:1999SIST EN 1457:1999/A1:20031DGRPHãþD



SIST EN 1457-1:2012



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE 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 methods Conduits de fumée - Conduits intérieurs en terre cuite/céramique - Partie 1: Exigences et méthodes d'essai pour utilisation en conditions sèches
Abgasanlagen - Keramik-Innenrohre - Teil 1: Innenrohre für Trockenbetrieb - Anforderungen und Prüfungen This European Standard was approved by CEN on 16 December 2011.
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 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, 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, 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 United Kingdom.
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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 1457-1:2012: ESIST EN 1457-1:2012



EN 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 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 Straight 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 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 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 . 15SIST EN 1457-1:2012



EN 1457-1:2012 (E) 3 16.2 Height. 1516.3 Angle of curvature . 1616.4 Straightness . 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 conditioning . 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 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 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 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 cavities . 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 . 40SIST EN 1457-1:2012



EN 1457-1:2012 (E) 4 Annex D (informative)
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 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 . 49 SIST EN 1457-1:2012



EN 1457-1:2012 (E) 5 Foreword This document (EN 1457-1:2012) has been prepared by Technical Committee CEN/TC 166 “Chimneys”, 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. 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 for identifying any or all such patent rights. This document supersedes EN 1457:1999. 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 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/ceramic 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 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, 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.
SIST EN 1457-1:2012



EN 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 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 made 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 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 steels — 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 static 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 inspection 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 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 convenient round number approximately equal to the internal height of the flue liner
NOTE See Figure 1. SIST EN 1457-1:2012



EN 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 See 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 when 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 SIST EN 1457-1:2012



EN 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-section 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 Rectangular Circular Wall with vertical perforations Figure 3 — Examples of cross-section configuration
Rebated Spigot & socket Sleeve Tapered Figure 4 — Joint configuration 4.2 Inspection openings and chimney junctions
Inspection openings are used for inspection and cleaning of the inner liners of chimneys and for soot removal and shall meet the requirements of flue liners as appropriate. Chimney junctions are used to connect flues from heat appliances to chimneys. Chimney junctions are purpose-made tee-pieces or inner liner sections with an opening to which branches are fitted. The branch SIST EN 1457-1:2012



EN 1457-1:2012 (E) 9 angles can be 45° to 95° (α in Figure 5). At the position of junctions, the outer walls have corresponding openings. Chimney junctions should have the same cross-sectional area as the flue liner. Reductions and expansions are acceptable provided that the resistance to the exhaust gases is not increased. Figure 5 — Examples of inspection openings and chimney junctions 5 Types of flue liner There are four main types of clay/ceramic flue liner dependent on working temperature, with sub-classes dependent on whether the flue liners are to be used in chimneys designed to work under negative or positive pressure or are to have soot fire resistance. The types, working temperatures, test pressures and maximum leakage rates are given in Table 1. The suitability of each type of flue liner to be used in chimneys designed to operate under negative or positive pressure is also given. NOTE A flue liner can be designated in one or more types provided that it complies with the appropriate requirements for each type. SIST EN 1457-1:2012



EN 1457-1:2012 (E) 10 Table 1 — Types of clay/ceramic flue liners operating under dry conditions, air test pressures and maximum leakage rates after thermal testing Types of flue liner Temperature Class Pressure Class Soot fire resistance Class Test pressure Pa Maximum leakage rate m3 s-1 m-2·10-3 A1 N2 600 Negative Yes (G) 20 3 A1 N1 600 Negative Yes (G) 40 2 A2 N2 600 Negative No (O) 20 3 A2 N1 600 Negative No (O) 40 2 A2 P1 600 Positive No (O) 200 0,006 B1 N2 400 Negative Yes (G) 20 3 B1 N1 400 Negative Yes (G) 40 2 B2 N2 400 Negative No (O) 20 3 B2 N1 400 Negative No (O) 40 2 B2 P1 400 Positive No (O) 200 0,006 C2 N2 300 Negative No (O) 20 3 C2 N1 300 Negative No (O) 40 2 C2P1 300 Positive No (O) 200 0,006 D1 N2 200 Negative No (O) 20 3 D1 N1 200 Negative No (O) 40 2 D1 P1 200 Positive No (O) 200 0,006 6 Materials Flue liners shall be manufactured from suitable clay/ceramic material which, when fired, meet the performance requirements given in this European Standard. Flue liners may be unglazed or glazed on the interior and/or exterior. When glazed, they need not be glazed on the jointing surfaces. 7 Tolerances on dimensions 7.1 Transverse dimension When tested in accordance with 16.1, the internal diameter of circular flue liners measured on any diameter shall not deviate more than ± 3 % of the manufacturer’s stated nominal internal diameter. The internal width or breadth of square or rectangular section flue liners shall not deviate more than ± 3 % of the manufacturer's stated nominal internal length of the side. 7.2 Height When tested in accordance with 16.2, the height of a flue liner shall not deviate more than ± 3 % on the manufacturer’s stated nominal height subject to a maximum value of 20 mm. 7.3 Angle of curvature When tested in accordance with 16.3, the angle of curvature of curved flue liners shall not deviate more than ± 5° on the manufacturer’s stated nominal curvature. SIST EN 1457-1:2012



EN 1457-1:2012 (E) 11 7.4 Straightness When tested in accordance with 16.4, the permissible deviation from straightness of straight flue liners shall be 1 % of the test length. 7.5 Squareness of ends When tested in accordance with 16.5, the permissible deviation from square of the ends of straight flue liners, shall be not greater than an angle of slope 30 mm/m. 7.6 Deviation from shape of cross section When tested in accordance with 16.6, the permissible deviation from square of the angles of, and flatness of walls for square or rectangular shape straight flue liners, shall be not greater than 5 % of the manufacturer’s stated nominal internal width or breadth. 7.7 Geometry of joints The design and dimensions of the joints shall be as specified by the manufacturer to provide an adequate joint. 8 Proof load 8.1 Straight flue liners When tested in accordance with 16.7, straight flue liners shall withstand an intensity of loading of 10 MN/m2. 8.2 Curved flue liners Where curved flue liners are fired in a plant alongside straight flue liners, using the same materials and firing process, the proof load of these curved flue liners is deemed to be that of the straight flue liners when tested in accordance with 16.7. If curved flue liners are not normally fired alongside straight flue liners, straight flue liners or short lengths of straight flue liners made for test purposes, using the same materials and firing process as for curved flue liners, shall be tested for compliance with the requirements of 8.1. 8.3
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