EN 1856-1:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Chimneys - Requirements for metal chimneys - Part 1: System chimney productsDimniki – Zahteve za kovinske dimnike – 1. del: Proizvodi za sistemske dimnikeConduits de fumée - Prescriptions pour les conduits de fumée métalliques - Partie 1: Composants de systemes de conduits de fuméeAbgasanlagen - Anforderungen an Metall-Abgasanlagen - Teil 1: Bauteile für System-Abgasanlagen91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:SIST EN 1856-1:2003enTa slovenski standard je istoveten z:EN 1856-1:200301-september-2003SIST EN 1856-1:2003SLOVENSKI
STANDARD







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1856-1June 2003ICS 91.060.40English versionChimneys - Requirements for metal chimneys - Part 1: Systemchimney productsConduits de fumée - Prescriptions pour les conduits defumée métalliques - Partie 1: Composants de systèmes deconduits de fuméeAbgasanlagen - Anforderungen an Metall-Abgasanlagen -Teil 1: Bauteile für System-AbgasanlagenThis European Standard was approved by CEN on 17 January 2003.CEN members are 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 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1856-1:2003 E



EN 1856-1:2003 (E)2ContentspageForeword.3Introduction.41Scope.42Normative references.43Terms and definitions.54Manufacturer’s declaration for type test.105Dimensions and tolerances.116Performance requirements.116.1Mechanical resistance and stability.116.2Resistance to fire.126.3Hygiene, health and environment. Gas tightness.126.4Safety in use.136.5Durability.157Product information.177.1Manufacturer's instructions.177.2Minimum information to be included in the manufacturer’s documentation and instructions.178Marking.188.1Chimney sections, fittings or terminals.188.2Chimney plate.189Product designation.1910Evaluation of conformity.1910.1General.1910.2Type testing.2010.3Factory production control (FPC).20Annex A
(normative)
Corrosion tests.23Annex B
(normative)
Choice of size for type test and sampling.43Annex C
(normative)
Sampling for factory production control.44Annex D
(normative)
Factory production control.47Annex ZA (informative)
Clauses of this European standard addressing the provisions of the EUConstruction Products Directive.49Bibliography.59



EN 1856-1:2003 (E)3ForewordThis document (EN 1856-1:2003) has been prepared by Technical Committee CEN/TC 166, "Chimneys", thesecretariat of which is held by UNI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by December 2003, and conflicting national standards shall be withdrawn at the latestby March 2005.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree 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.Annexes A, B, C and D are normative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.



EN 1856-1:2003 (E)4IntroductionThis European Standard has been prepared to be a harmonised standard to provide means of conforming to the essentialrequirements of the Construction Products Directive and associated EFTA regulations.The generic word "chimney", when used in this standard, refers to systems with metallic liner used to convey the productsof combustion from any appliance to the outside atmosphere, and thus includes all other terms of common use in thetrade, such as: vents, flues, shafts, exhaust systems, ducts, etc.This standard addresses the durability against corrosion by the use of a minimum material specification for the flue liner aswell as an interim solution for testing products for durability against corrosion. Three corrosion resistance tests and theirrequirements have been adopted from existing corrosion testing being undertaken in various member states (see annexA).Is intended to review the interim solution within a period of 5 years with the intention to develop a unique test method fordurability against corrosion as a final solution.This standard describes chimney components, from which system chimneys can be assembled as illustrated in Figure 1.1 ScopeThis standard specifies the performance requirements for single- and multi-wall system chimney products with metallicliners (chimney sections, chimney fittings and terminals, including supports) used to convey the products of combustionfrom appliances to the outside atmosphere. It also specifies the requirements for marking, manufacturer's instructions,product information and evaluation of conformity. Metal liners and metal connecting flue pipes not covered here, areincluded in prEN 1856-2:1996.This standard does not apply to structurally independent (free standing or self-supporting) chimneys.2
Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. These normativereferences are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references,subsequent amendments to or revisions of any of these publications apply to this European Standard only whenincorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies(including amendments).EN 573-3Aluminium and aluminium alloys - Chemical composition and formof wrought products - Part 3: Chemical composition.EN 1443:2003Chimneys - General requirements.EN 1859:2000Chimneys - Metal chimneys - Test methods.EN 10088-1Stainless steel - Part 1: List of stainless steels.prEN 12391Chimneys - Metal chimneys.EN 13384-1:2002Chimneys - Thermal and fluid dynamic calculation methods - Part1: Chimneys serving one appliance.EN ISO 3651-2Determination of resistance to intergranular corrosion of stainlesssteels. Part 2: Ferritic, austenitic and ferritic-austenitic (duplex)stainless steels. Corrosion test in media containing sulfuric acid(ISO 3651-2:1998).



EN 1856-1:2003 (E)5ISO 2859-1Sampling procedures for inspection by attributes - Part 1:Sampling schemes indexed by acceptance quality limit (AQL) forlot-by-lot inspection.3 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply:3.1 appliance outletposition where the products of combustion exit from the appliance (see Figure 1)3.2 chimneystructure consisting of a wall or walls enclosing a flue or flues[EN 1443:2003]3.3 chimney accessorychimney component not conveying products of combustion[EN 1443:2003]3.4 chimney componentany part of a chimney[EN 1443:2003]3.5 chimney designationshortened description of a specific chimney type, which clearly distinguishes it from any other types3.6 chimney fittingchimney component conveying products of combustion except a chimney section (see Figure 1)[EN 1443:2003]3.7 chimney sectionstraight chimney component conveying products of combustion (see Figure 1)[EN 1443:2003]3.8 claddingadditional non-structural outer wall around a chimney for protection against heat transfer or weathering, or fordecorative purposes (see Figure 1)[EN 1443:2003]3.9 connecting flue pipecomponent or components connecting the heating appliance outlet and the chimney (see Figure 1)[EN 1443:2003]



EN 1856-1:2003 (E)63.10 corrosion loadcombination of condensate and corrosion resistance classes necessary for the different operating conditions andtypes of fuel3.11 custom built chimneychimney that is installed or built on-site using a combination of compatible chimney components that may be fromone or different sources[EN 1443:2003]3.12 design load (DL)load which a chimney or its components are designed to be subjected to, under normal operating conditions, wheninstalled as per manufacturer's installation instruction3.13 dry operating conditioncondition when a chimney is designed to operate normally with the temperature of the inner surface of the flue linerabove the water dew point[EN 1443:2003]3.14 enclosurebarrier that, when built around a chimney, will give additional safety in case of fire and can provide additional heattransfer resistance (see Figure 1)[EN 1443:2003]3.15 external installationpart of a chimney, which is located outside the building3.16 flexible pipemetal liner, or metal connecting flue pipe having a single or double skin construction, designed to bend in anydirection without permanent deformation3.17 fluepassage for conveying the products of combustion to the outside atmosphere (see Figure 1)[EN 1443:2003]3.18 flue gasgaseous portion of the products of combustion conveyed in a flue[EN 1443:2003]3.19 flue linerwall of a chimney consisting of components the surface of which is in contact with products of combustion (seeFigure 1)[EN 1443:2003]



EN 1856-1:2003 (E)73.20 heating appliancesunit generating products of combustion which need to be conveyed to the outside atmosphere (see Figure 1)[EN 1443:2003]3.21 insulationmaterial or air gap between the flue liner and the outer wall, designed to increase thermal resistance of the chimney(see Figure 1)3.22 internal installationpart of a chimney, which is located inside a building3.23 jointconnection between two components (see Figure 1)[EN 1443:2003]3.24 manufacturer instructionsproduct written information which is provided for use by the buyer or installer3.25 metal chimneychimney with its flue liner made of metal, which may have additional surrounding structural elements andaccessories, as well as insulation3.26 metal linerrigid or flexible flue liner made of metal



EN 1856-1:2003 (E)8Figure 1 —
Terminology. chimney components and chimney accessories3.27 minimum declared wall thicknessvalue for the minimum thickness of the liner wall as stated by the manufacturer for the type test3.28 multi-wall chimneychimney consisting of a flue liner and at least one additional wall[EN 1443:2003]3.29 multi-wall metal chimneychimney of two walls or more, all made of metal3.30 negative pressure chimneychimney designed to operate with the pressure inside the flue less than the pressure outside the flue[EN 1443:2003]3.31 nominal sizewhole number representing the value of the internal diameter of the flue liner, expressed in millimetres



EN 1856-1:2003 (E)93.32 non enclosed chimneychimney which is installed without any enclosure or cladding3.33 outer wallexternal wall of a chimney, the surface of which comes in contact with ambient or the external environment, or iswithin cladding or enclosure (see Figure 1)[EN 1443:2003]3.34 positive pressure chimneychimney designed to operate with the pressure inside the flue greater than the pressure outside the flue[EN 1443:2003]3.35 reliningprocess of restoring or replacing the flue liner of a chimney[EN 1443:2003]3.36 resistance to firethe ability of a chimney to prevent ignition of adjacent combustible material, and to prevent the spread of fire toadjacent areas3.37 single-wall chimneychimney where the flue liner is the chimney[EN 1443:2003]3.38 sootfirecombustion of the flammable residue deposited on the flue liner[EN 1443:2003]3.39 structurally independent chimneychimney which is not attached to buildings, masts or other support structure3.40 supportchimney accessory used to fix, or transfer the load of, chimney components to structural elements (building, mast,etc.) (see Figure 1)3.41 system chimneychimney that is installed using a combination of compatible chimney components, obtained or specified from onemanufacturing source with product responsibility for the whole chimney[EN 1443:2003]3.42 terminalfitting installed at the outlet of a chimney (see Figure 1)



EN 1856-1:2003 (E)10[EN 1443:2003]3.43 test assemblycomplete assembly of all parts necessary to enable the specific performance criteria to be assessed, comprisingtest chimney, test structures, and measuring equipment (as specified in the test method)3.44 test chimneyassembly of the chimney components (as specified in the test method), necessary to the assessment of a specificperformance criteria of a metal system chimney product3.45 test structureassembly of the additional materials (non-chimney components) to enable the test chimney to be assessed for thespecific performance criteria3.46 thermal resistance of a chimneyresistance to heat transfer through the wall or walls of the chimney[EN 1443:2003]3.47 wet operating conditioncondition when the chimney is designed to operate normally with the temperature of the inner surface of the flueliner at or below the water dew point[EN 1443:2003]4 Manufacturer’s declaration for type testThe manufacturer shall provide the relevant information from 7.2 and, in addition, shall declare:a) the type of metals from which the chimney fittings or sections are made, according to EN 10088-1 and EN573-3, and the nominal and minimum wall thickness;b) the internal diameter of the chimney fittings or sections and the nominal product size;c) the minimum wall thickness after manufacture, the installed length, liner external circumference, total mass anddesign loads of the fitting or section and, if appropriate, the insulation density or mass.



EN 1856-1:2003 (E)115 Dimensions and tolerances5.1 The thickness of the material from which the components are made shall be not less than the minimum wall thicknessaccording to 4 a).5.2 The declared internal diameter of the fitting or section shall be not less than ± 5 mm from the nominal size. Themeasured internal diameter of the fitting or section shall not be less than the diameter declared by the manufacturer [see 4b)].5.3 The external circumference of the liner of the fitting or section shall be within 05+ mm up to 600 mm internal diameterand within 013+mm over 600 mm internal diameter, of that declared by the manufacturer [see 4 c)].5.4 The installed length of a fitting or section (measured on an assembly including at least one joint) shall be within ± 5mm of that declared by the manufacturer [see 4 c)].5.5 The density of insulation in a fitting or a section shall be within 030+% of that declared by the manufacturer [see 4c)].6
Performance requirementsUnless otherwise stated, performance requirements for fittings shall be the same as those for chimney sections.6.1
Mechanical resistance and stability6.1.1
Compressive strength6.1.1.1 Chimney sections and fittingsThe manufacturer shall declare the relevant design loads.When tested according to the test method described in EN 1859 a multi-wall chimney section or fitting shall withstand aload of at least three times the manufacturer's declared design load.When tested according to the test method described in EN 1859, single- and multi-wall chimney sections or fittings wherethe flue liner is load bearing, shall withstand a load of at least four times the manufacturer's declared design load.6.1.1.2 Chimney supportThe manufacturer shall declare the relevant design loads.When tested according to the test method described in EN 1859, the maximum displacement of the test chimney at thesupport shall not be greater than 5 mm, in the direction of the load when the manufacturer's declared design load isapplied.The support shall withstand an intensity of loading of at least three times the manufacturer's declared design load.6.1.2 Tensile strengthThe manufacturer shall declare the relevant design loads.When a chimney section is tested according to the test method of EN 1859, the chimney section shall withstand a load ofat least 1,5 × the manufacturer's declared design load.



EN 1856-1:2003 (E)126.1.3 Lateral strength6.1.3.1 Non-vertical installationWhen a chimney section, declared by the manufacturer as suitable for non-vertical installation, is tested according to thetest method described in EN 1859, the deflection of any part of the test chimney shall not be more than 2 mm/m indistance between supports.6.1.3.2 Components subject to wind loadWhen chimney components declared by the manufacturer as suitable for external installation are tested according to thetest method of EN 1859, the test chimney shall withstand a minimum load of 1,5 kN/m2 of projected outer surface area.6.2 Resistance to fireThe manufacturer shall declare the minimum distance to combustible material and the requirements of 6.4.1 shall be met.6.2.1 Sootfire resistanceWhen a chimney made of sections and/or fittings designated as sootfire resistant is tested according to the thermal shocktest method described in EN 1859, the maximum surface temperature of combustible materials adjacent to the testchimney, at the distance declared, shall not exceed 100°C when related to an ambient temperature of 20°C and shallmeet the gas tightness given in 6.3.The distance declared shall not exceed the criteria for normal operating conditions.6.3 Hygiene, health and environment. Gas tightnessWhen a chimney is tested according to the test methods described in EN 1859, the leakage rate shall not be greater thanthat given in Table 1, both before and after the thermal performance test at normal operating condition and, whereappropriate, the resistance to sootfire test (see annex I of EN 1859:2000). Table 1 — Leakage ratePressure typeTest pressurePaLeakage rate/Flue surfaceareal · s-1 · m-2N140< 2,0P1200< 0,006P2200< 0,120H1200 and 5 000< 0,006H2200 and 5 000< 0,120



EN 1856-1:2003 (E)136.4 Safety in use6.4.1 Thermal performance at normal operating conditionsWhen a chimney made of sections and/or fittings is tested according to the heat stress test method described in EN 1859,the maximum surface temperature of combustible materials adjacent to the test chimney, at the distance declared, for thenominal working temperature, shall not be greater than 85°C, when related to an ambient temperature of 20°C and shallmeet the gas tightness given in 6.3.6.4.2 Accidental human contactWhere accidental human contact of a chimney is possible the outer wall surface temperature of the chimney shall not begreater than the appropriate value given in Table 2.Table 2 — Maximum outer wall surface temperaturesMaterial of outer wall surfaceMaximum allowed temperatureCMetal-bareMetal-paintedMetal-enamelledMetal-plastic covered70808690NOTE
The values in Table 2 are based on the criteria in EN 563 relating to a 1 s burn threshold.



EN 1856-1:2003 (E)146.4.3 Thermal resistanceThe thermal resistance value of the chimney section declared by the manufacturer shall be verified either by testing,according to the test method of EN 1859, or by calculation using either the simplified calculation or the finite differenceequation of annexes F and G of EN 1859:2000.When the value for the thermal resistance is calculated, the thermal conductivity value shall be based on the meantemperature of the insulation depending on the nominal temperature of Table 3.Table 3 — Temperature levels and test temperaturesTemperature levelNominal working temperature (T)°CFlue gas test temperature°CT 080T 100T 120T 140T 160T 200T 250T 300T 400T 450T 600 80 100 120 140 160 200 250 300 400 450 6001001201501701902503003505005507006.4.4 Water vapour diffusion resistanceWhen a section or fitting designated for wet operating conditions is tested according to the test method described in EN1859, the outer surface of the section or fitting shall remain dry and the increase in mass of the section or fitting shall notexceed 1,0 % of the insulating material.6.4.5 Condensate penetration resistanceWhen a section or fitting designated for wet operating conditions is tested according to the test method described in EN1859, the outer surface of the section or fitting shall remain dry and the increase in mass of the section or fitting shall notexceed 1,0 % of the insulating material.6.4.6 Rainwater penetration resistanceWhen a section or fitting designated for external installation is tested according to the test method described in EN 1859,the increase in mass of the section or fitting shall not exceed 1,0% of the insulating material.



EN 1856-1:2003 (E)156.4.7 Flow resistance6.4.7.1 Chimney sectionsThe manufacturer shall declare the mean value of roughness for chimney sections, which shall be determined accordingto the method given in subclause 4.12 of EN 1859:2000 or obtained from data given in EN 13384-1:2002.6.4.7.2 Chimney fittingsThe manufacturer shall declare the coefficient of flow resistance due to a directional and/or cross-sectional and/or massflow change in the flue for chimney fittings which shall be determined according to the method given in subclause 4.12 ofEN 1859:2000 or obtained from data given in EN 13384-1:2002.6.4.7.3 TerminalsThe manufacturer shall declare the coefficient of flow resistance of the terminal which shall be verified according to the testmethod described in subclause 4.10 of EN 1859:2000 .6.4.8 Other requirements for terminals6.4.8.1 Rain protection terminalsWhere a rain protection terminal is tested for rain water penetration according to the test method described in EN 1859,the mass of the water collected in the flue liner shall not exceed 5 × 10-2 mm3/s per millimetre of flue liner diameter.6.4.8.2 Aerodynamic behaviourWhen a terminal is tested according to the test method described in EN 1859 the static pressure in the terminal Pstatic shallmeet the following formula:22,0LRstaticWPPwhere— PR is the pressure difference, in Pa, as declared by the manufacturer, between the flue liner and the test roomat the internal flow velocity of 1 m/s;— WL is the wind speed, in m/s.For negative pressure chimneys the value PR shall be 2 Pa maximum.For positive pressure chimneys the value PR is the actual value that is measured under the conditions given in subclause6.4.7.3, by the flow velocity of 2 m/s.6.5 Durability6.5.1 Durability of the flue liner against corrosionDurability against corrosion shall be declared either on the basis of:a) material type (according to Table 4) and thickness of the flue liner; orb) on the basis of the results of at least one of the three test methods described in normative annex A.Products which have a declaration on the basis of material type and thickness shall be designated Vm.Products passing the test described in clause A.1 shall be designated V1.



EN 1856-1:2003 (E)16Products passing the test described in clause A.2 shall be designated V2.Products passing the test described in clause A.3 shall be designated V3.The product designation shall, in any case, include the flue liner material specification, according to 6.5.2.NOTE
The link between Vm, V1, V2 and V3 and the allowed use is dependent on individual member states regulations wherethey exist.6.5.2
Flue liner material specificationThe complete material specification of the flue liner shall be formed by the letter L followed by five digits. The first two digitsshall represent the material type as in Table 4 and the last three digits shall represent the material thickness in multiples ofthe unit 0,01 mm.EXAMPLEL40045 represents a liner made of 1.4401 stainless steel with a thickness of 0,45 mm.Table 4 — Flue liner material specification (according to EN 10088-1 and EN 573-3)Material typeMaterial NºSymbol101113203040506070EN AW – 4047AEN AW – 1200AEN AW-60601.43011.43071.44011.4404a1.44321.4539EN AW Al Si 12(A) andCU <0,1%, Zn<0,15%(cast aluminium)EN AW-AL 99,0 (A)EN
AW-AI
MgSiX5CrNi 18-10X2CrNi 18-9X5CrNiMo 17-12-2X2CrNiMo 17-12-2X2CrNiMo 17-12-3X1NiCrMoCu 25-20-5a Equivalent for material Nº 1.4404 = 1.4571(symbol X6CrNiMoTi 17-12-2).



EN 1856-1:2003 (E)176.5.3 Freeze-thaw resistanceMetal chimney products are considered deemed to satisfy free freeze-thaw resistance.7 Product information7.1 Manufacturer's instructionsThe manufacturer's instructions shall be available in the language of each country in which the product is sold.7.2 Minimum information to be included in the manufacturer’s documentation and instructionsThe manufacturer shall include in his documentation and instructions the following minimum information:— manufacturer identification;— product designation in accordance with clause 9 and its explanation;— material specification;— wind load resistance limitations of height location of exposed section of the chimney, maximum distances between lateral supports or guides;— compressive strength maximum load, mass and dimensions of chimney components;— minimum distance to combustible materials;— flow resistance factors of fittings and chimney sections;— thermal resistance in m² K/W;— flexural strength maximum offset, maximum suspended load from the sections and fittings;— dangerous substances;— installation drawing typical of the application;— method of jointing the components;— method of installing sections or fittings, supports and accessories including weatherproofing;— instruction on how to complete the data of the chimney plate according to p
...