Chimneys - Requirements for metal chimneys - Part 2: Metal liners and connecting flue pipes

This European Standard specifies the performance requirements for rigid or flexible metal liners, rigid connecting flue pipes and rigid fittings used to convey the products of combustion from appliances to the outside atmosphere (including their supports).
Vitreous enamelled connecting flue pipes are also covered by this standard.
Rigid liners can be used as flue liners for renovation or adaptation of existing chimneys and as flue liners of custom built chimneys.
Flexible metal liners described in this European Standard are exclusively for renovation or adaptation of existing chimneys.
This European Standard also specifies the requirements for marking, manufacturer's instructions, product information and evaluation of conformity.
Flexible connecting flue pipes and extensible flexible products designed to be compressed or extended along their length are excluded from the scope of this standard.
Single wall and multi-wall system chimney products are covered by EN 1856-1.

Abgasanlagen - Anforderungen an Metall-Abgasanlagen - Teil 2: Innenrohre und Verbindungsstücke aus Metall

Dieses Dokument legt die Leistungsanforderungen für starre und flexible Innenrohre aus Metall, starre Verbindungsstücke und starre Formstücke fest, welche zur Abführung  von Verbrennungsprodukten von Feuerstätten an die Außenluft verwendet werden (einschließlich ihrer Halterungen).
Emaillierte Verbindungsstücke sind ebenfalls Gegenstand dieses Dokumentes.
Starre Innenrohre dürfen auch als Abgasrohre zur Sanierung oder Querschnittsverminderung bestehender Abgasanlagen und als Abgasrohre für Montageabgasanlagen verwendet werden.
Flexible Innenrohre aus Metall nach diesem Dokument werden ausschließlich bei Sanierung oder Querschnittsanpassung einer bestehenden Abgasanlage eingesetzt.
Dieses Dokument enthält ebenfalls Anforderungen an die Kennzeichnung, die Herstellerangaben, die Produktangaben und die Beurteilung der Konformität.
Flexible Verbindungsstücke und ausziehbare flexible Produkte, die in ihrer Länge zusammengeschoben oder ausgezogen werden können, sind nicht Gegenstand des Anwendungsbereichs dieses Dokumentes.
Vorschriften für Produkte einschaliger und mehrschaliger Systemabgasanlagen sind in EN 1856-1 enthalten.

Conduits de fumée - Prescriptions relatives aux conduits de fumée métalliques - Partie 2: Tubages et éléments de raccordement métalliques

Le présent document fixe les prescriptions de performances des tubages métalliques rigides ou flexibles, des éléments de raccordement et des éléments droits utilisés pour évacuer dans l'atmosphere extérieure les produits de combustion provenant des appareils (supports compris).
Les éléments de raccordement en émail vitrifié relevent aussi du présent document.
Les tubages rigides peuvent etre utilisés comme parois intérieures soit pour la rénovation ou l'adaptation de conduits de fumée déja installés, soit pour les conduits de fumée construits sur site.
Les tubages métalliques flexibles décrits dans le présent document sont exclusivement destinés a la rénovation ou a l'adaptation des conduits de fumée déja installés.
Le présent document précise aussi les prescriptions relatives au marquage, aux instructions du fabricant, aux informations afférentes au produit ainsi qu'a l'évaluation de la conformité.
Les éléments de raccordement flexibles et les produits flexibles extensibles conçus pour etre comprimés ou déployés dans le sens de la longueur sont exclus du domaine d'application du présent document.
Les produits a conduits simple paroi et a conduits multiparois sont traités dans l'EN 1856-1.

Dimniki – Zahteve za kovinske dimnike – 2. del: Kovinske tuljave in dimniški priključki

General Information

Status
Withdrawn
Publication Date
30-Sep-2004
Withdrawal Date
02-Jul-2009
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
03-Jul-2009
Due Date
26-Jul-2009
Completion Date
03-Jul-2009

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Chimneys - Requirements for metal chimneys - Part 2: Metal liners and connecting flue pipesSULNOMXþNLConduits de fumée - Prescriptions relatives aux conduits de fumée métalliques - Partie 2: Tubages et éléments de raccordement métalliquesAbgasanlagen - Anforderungen an Metall-Abgasanlagen - Teil 2: Innenrohre und Verbindungsstücke aus Metall91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:SIST EN 1856-2:2004en,fr,deTa slovenski standard je istoveten z:EN 1856-2:200401-oktober-2004SIST EN 1856-2:2004SLOVENSKI
STANDARD







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1856-2July 2004ICS 91.060.40English versionChimneys - Requirements for metal chimneys - Part 2: Metalliners and connecting flue pipesConduits de fumée - Prescriptions relatives aux conduits defumée métalliques - Partie 2: Tubages et éléments deraccordement métalliquesAbgasalagen - Anforderungen an Metall-Abgasanlagen -Teil 2: Innenrohre und VerbindungsstückeThis European Standard was approved by CEN on 30 April 2004.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1856-2:2004: E



EN 1856-2:2004 (E) 2 Contents page Foreword.3 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Manufacturer’s declaration for type test.6 5 Dimensions and tolerances.6 6 Performance requirements.6 6.1 Mechanical resistance and stability.6 6.2 Resistance to fire.7 6.3 Gas tightness.8 6.4 Safety in use.8 6.5 Durability.9 7 Product information.10 7.1 Manufacturer's instructions.10 7.2 Minimum information to be included in the manufacturer’s documentation and instructions.11 8 Marking and labelling.11 8.1 Liners, rigid connecting flue pipes and fittings.11 8.2 Chimney plate.11 8.3 Packaging.12 9 Product designation.12 10 Evaluation of conformity.13 10.1 General.13 10.2 General.13 10.3 Type testing.13 10.4 Factory production control (FPC).14 Annex A (normative)
Test methods for flexible liners.16 A.1 Measure of diameter of flexible liner.16 A.2 Gas tightness.16 A.3 Tensile strength.16 A.4 Crushing resistance.17 A.5 Flexibility test.18 A.6 Torsion strength test.19 A.7 Thermal performance test.20 Annex B (normative)
Choice of size for type test and sampling of metal liners, connecting flue pipes and fittings.25 B.1 General.25 B.2 Thermal testing.25 B.3 Mechanical tests.25 B.4 Gas tightness.25 B.5 Samples.25 B.6 Factory production control.25 B.7 Nature of changes requiring further type test.25 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directives.26 Bibliography.36



EN 1856-2:2004 (E) 3 Foreword
This document (EN 1856-2:2004) 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 publication of an identical text or by endorsement, at the latest by January 2005, and conflicting national standards shall be withdrawn at the latest by April 2006. 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.



EN 1856-2:2004 (E) 4 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 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 specifications for the metal 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 1856-1:2003). It is intended to review the interim solution within a period of 5 years with the intention to develop a unique test method for durability against corrosion as a final solution.



EN 1856-2:2004 (E) 5 1 Scope This document specifies the performance requirements for rigid or flexible metal liners, rigid connecting flue pipes and rigid fittings used to convey the products of combustion from appliances to the outside atmosphere (including their supports). Vitreous enamelled connecting flue pipes are also covered by this document. Rigid liners can be used as flue liners for renovation or adaptation of existing chimneys and as flue liners of custom built chimneys. Flexible metal liners described in this document are exclusively for renovation or adaptation of existing chimneys. This document also specifies the requirements for marking, manufacturer's instructions, product information and evaluation of conformity. 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. 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 of 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. EN 1443, Chimneys - General requirements. EN 1856-1:2003, Chimneys - Requirements for metal chimneys - Part 1: System chimney products. EN 1859:2000, Chimneys – Metal chimneys - Test methods. EN 10025, 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 steel. EN 10154, Continuously hot-dip Aluminium–Silicon (AS) coated steel strip and sheet – Technical delivery conditions. EN 10209:1996, Cold rolled low carbon steel flat products for vitreous enamelling – Technical delivery conditions.
3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1856-1:2003 and the following apply. 3.1 bending radius minimum radius measured on the inner side of a flexible liner when bent



EN 1856-2:2004 (E) 6 3.2 double skin flexible flue liner flexible liner consisting of two layers of metal, where the inner layer forming the flue is flat and covers the corrugations 4 Manufacturer’s 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 liners and connecting flue pipes are made, according to EN 573-3, EN 10025, EN 10088-1, EN 10154 and EN 10209, and the nominal and minimum skin/wall thickness. b) The internal diameter of the liners and connecting flue pipes and the nominal product size. c) The minimum thickness of rigid liners or rigid connecting flue pipes, the length of rigid liners or rigid connecting flue pipes as installed, rigid liner and connecting flue pipes external circumference, mass and design loads of the fittings or rigid liner sections. d) Tensile design load for flexible liners (corresponding to the maximum length of suspended flexible liner, 20 m minimum or more if declared by the manufacturer). 5 Dimensions and tolerances 5.1 The thickness of materials from which the flexible liner is made shall be not less than that declared by the manufacturer [see 4 a)]. The thickness of rigid liners and rigid connecting flue pipes shall be in accordance with 5.1 of EN 1856-1:2003. 5.2 The declared internal diameter of the 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 diameter of the flexible liner shall not be less than the manufacturer’s declared diameter [see 4b)]. For rigid connecting flue pipe, the requirements given in 5.2 of EN 1856-1:2003 shall apply. For flexible liners, the internal diameter shall be measured in accordance with A.1. 5.3 The installed length of rigid liners or rigid connecting flue pipes (measured on an assembly including at least one joint) shall be in accordance with EN 1856-1. 6 Performance requirements 6.1 Mechanical resistance and stability 6.1.1 Rigid liners and rigid connecting flue pipes and fittings Rigid liners and rigid connecting flue pipes and fittings shall comply with 6.1.1, 6.1.2 and 6.1.3 of EN 1856-1:2003 except wind load. 6.1.2 Flexible liners 6.1.2.1 Compressive strength of fittings and supports The manufacturer shall declare the relevant design load of fittings and supports. The compressive strength requirements shall be in accordance with 6.1.1.2 of EN 1856-1:2003.



EN 1856-2:2004 (E) 7 6.1.2.2 Tensile strength The manufacturer shall declare the relevant design load of flexible liners. The flexible liner, when tested in accordance with A.3 shall meet the gas tightness requirement of 6.3. 6.1.2.3 Crushing resistance When tested in accordance with A.4, the outside diameter of the flexible liner shall not have been reduced to less than 75% of its original nominal diameter and shall meet the gas tightness requirement of 6.3. 6.1.2.4 Flexibility When tested in accordance with A.5.2, the flexible liner shall meet the gas tightness requirement of 6.3. When tested in accordance with A.5.2, the inner layer of the double skin flexible liner shall remain overlapped at the minimum bending radius declared by the manufacturer. 6.1.2.5 Torsion strength When a flexible liner is tested in accordance with A.6, it shall meet the gas tightness requirement of 6.3. 6.1.2.6 Pulling force Before the thermal performance test, as per 6.4.1.1 (see also A.7), it shall be checked that the pulling force measured in A.7.3.1.1 shall be less than 0,5 kN. 6.2 Resistance to fire 6.2.1 Rigid liners and fittings When a rigid liner and its fittings, designated as sootfire resistant, is tested according to 4.5.3.2 of EN 1859:2000 with the exception of the test rig (Figures 4 and 5) which shall be (replaced by the test rig) described in Annex A, it shall meet the gas tightness requirements defined in 6.3. 6.2.2 Rigid connecting flue pipes and fittings When a rigid connecting flue pipe and its fittings, designated as sootfire resistant, are tested according to the test method described in A.7.3.3 and A.7.4, the maximum surface temperature of combustible material adjacent to the test sample at the distance declared by the manufacturer shall not exceed 100°C when related to an ambient temperature of 20°C and shall meet the gas tightness requirements defined in 6.3. 6.2.3 Flexible liners and fittings When a flexible liner and its fittings, designated as sootfire resistant, are tested according to the test method described in A.7.4.3, they shall meet the gas tightness requirements defined in 6.3. The test sample shall allow the test ball defined in A.7.3.1.2 to move freely down.



EN 1856-2:2004 (E) 8 6.3 Gas tightness When tested in accordance with A.2 for flexible liners and their fittings or 4.4 of EN 1859:2000 for rigid liners and rigid connecting flue pipes and their fittings, the leakage rate shall not be greater than those specified in Table 1.
Table 1 — Leakage rate Pressure type Test pressure Pa Leakage rate/Flue surface area l × s-1 × m-2 N1 40 < 2,0 N2 20 < 3,0 P1 200 < 0,006 P2 200 < 0,120 H1 200 and 5 000 < 0,006 H2 200 and 5 000 < 0,120
6.4 Safety in use 6.4.1 Thermal performance at normal operating conditions 6.4.1.1 Rigid liners and fittings When a liner and its fittings are tested according to the heat stress test method of EN 1859 with the exception of the test rig (Figures 4 and 5) which shall be (replaced by the test rig) described in A.7.2, they shall meet the gas tightness of 6.3. 6.4.1.2 Rigid connecting flue pipes and fittings When a rigid connecting flue pipe and its fittings are tested according to heat stress test method of EN 1859 with the exception of the test rig (Figures 4 and 5) which shall be replaced by the test rig described in A.7.2, the maximum surface temperature of combustible material adjacent to the test sample at the distance declared shall not exceed 85°C when related to an ambient temperature of 20°C and shall meet the gas tightness of 6.3. In addition, vitreous enamelled connecting flue pipe shall not exhibit any cracking or any sign of flaking of their surface after heat stress test according to EN 10209. 6.4.1.3 Flexible liners and fittings When a flexible liner and its fittings are tested according to heat stress test method described in A 7.4.2, they shall meet the gas tightness of 6.3. The test sample shall allow the test ball of A.7.3.1.2 to move freely down. 6.4.2 Accidental human contact In case of accidental human contact for a connecting part, individual member states regulations are applicable. 6.4.3 Thermal resistance Where connecting flue pipes are insulated, their thermal resistance value, declared by the manufacturer, shall be determined in accordance with 6.4.3 of EN 1856-1:2003.



EN 1856-2:2004 (E) 9 6.4.4 Water vapour diffusion resistance The requirements of 6.4.4 of EN 1856-1:2003 shall apply when the manufacturer declares that the rigid or flexible liner can be installed with external insulation. Insulated rigid connecting flue pipes shall conform to 6.4.4 of EN 1856-1:2003. 6.4.5 Condensate penetration resistance Rigid and flexible liners, rigid connecting flue pipes and their fittings designated for wet operating conditions (W) shall be subjected to the requirements of 6.4.5 of EN 1856-1:2003 and their outer surface shall remain dry. 6.4.6 Flow resistance 6.4.6.1 Rigid liners, rigid connecting flue pipes and fittings The requirements of 6.4.7.1 and 6.4.7.2 of EN 1856-1:2003 shall apply. 6.4.6.2 Flexible liners and fittings The requirements of 6.4.7.1 and 6.4.7.2 of EN 1856-1:2003 shall apply. 6.5 Durability 6.5.1 Durability against corrosion The requirements of 6.5.1 and 6.5.2 of EN 1856-1:2003 shall apply, where the Table 4 shall be replaced by Table 2 of this document. In addition, the material specification of the outer skin of the double skin liners and connecting flue pipes shall be declared. When tested in accordance with Annex D of EN 10209:1996, the adherence level of the coating of vitreous enamelled connecting flue pipes shall not exceed level 3. This test shall be performed after thermal performance test defined in A.7.



EN 1856-2:2004 (E) 10 Table 2 — Material specification Material type Material No. Symbol 00
01
05
10
11
13
20
30
40
50
60
70
80 Cast iron
Normal steel EN 10025
Aluminium coated steel
EN AW – 4047A
EN AW - 1200
EN AW - 6060
1.4301
1.4307
1.4401
1.4404 2)
1.4432
1.4539
Double sided vitreous enamelled steel
S 235 JRG 2
EN 10154
EN AW Al Si 12A1)
EN AW-AL 99,0A
EN AW-Al MgSi
X5CrNi 18-10
X2CrNi 18-9
X5CrNiMo 17-12-2
X2CrNiMo 17-12-2
X2CrNiMo 17-12-3
X1NiCrMoCu 25-20-5
1) Cu < 0,1 %, Zn < 0,15 %. 2) Equivalent for material no. 1.4404 = 1.4571 (symbol X6CrNiMoTi 17-12-2).
Example: L 40045 represents a liner made of 1.4401 stainless steel with a thickness of 0,45 mm. 6.5.2 Freeze thaw resistance Metal liners and connecting flue pipes are considered to satisfy freeze thaw resistance requirements. 7 Product information 7.1 Manufacturer's instructions The manufacturer‘s instructions shall be available in the language of each country where the product is placed on the market.



EN 1856-2:2004 (E) 11 7.2 Minimum information to be included in the manufacturer’s documentation and instructions 7.2.1 Rigid liners, rigid connecting flue pipes and fittings The manufacturer shall provide information on the nominal size of the product. Where applicable the requirements of 7.2 of EN 1856-1:2003 shall apply. 7.2.2 Flexible liners and fittings The manufacturer shall provide information on the nominal size of the product. Where applicable the requirements of 7.2 of EN 1856-1:2003 shall apply:  with the exception of:  compressive strength,  wind load resistance;  with the addition of:  minimum bending radius of flexible liners;  minimum shaft size for the nominal liner size and maximum offset angle;  method of cutting. 8 Marking and labelling NOTE: For CE marking purposes the provisions of Clause ZA.3 of Annex ZA apply. 8.1 Liners, rigid connecting flue pipes and fittings Rigid liners, rigid connecting flue pipes and fittings shall be legibly marked with the following minimum information. Flexible liners and fittings shall be marked with this information at not more than 3 m intervals: a) product designation in accordance with Clause 9; b) name or trademark of the manufacturer; c) manufacturing batch or product reference of manufacturer; d) arrow indicating the direction of flue gases (if applicable). 8.2 Chimney plate The manufacturer shall make available a chimney plate made of a durable material, which shall include the following information: a) name or trademark of the manufacturer (engraved or indelibly marked); b) space for designation in accordance with EN 1443; c) space for nominal size; d) space for minimum distance to combustible material, indicated in millimetres, followed by the symbol of an arrow and a flame;



EN 1856-2:2004 (E) 12 e) space for installer data and date of installation. 8.3 Packaging Each package within a consignment shall be legibly marked with the following information: a) product designation in accordance with Clause 9; b) name or trademark of the manufacturer; c) nominal size; d) distance to combustible (for rigid connecting flue pipes only). 9 Product designation All liners, connecting flue pipes and fittings shall be designated in accordance with the following designation system: Example:
Connecting flue pipe - EN 1856-2-T400-PI -W -Vx- L40045 - Gxx
Product description Document number
Temperature class (see Table 3)
Pressure level (N or P or H)
Condensate resistance (W: wet or D: dry)
Corrosion resistance (durability against corrosion) (see 6.5.1 and Annex A of EN 1856-1:2003)
Flue liner material specification (see Table 2)
Sootfire resistance (G: yes or O: no) and distance to combustible material xx only for connecting flue pipes (in mm)
* Inner skin for double skin flexible liners.



EN 1856-2:2004 (E) 13 Table 3 — Temperature classes and test temperatures Temperature class Nominal working temperature (t) °C Flue gas test temperature °C T 080 T 100 T 120 T 140 T 160 T 200 T 250 T 300 T 400 T 450 T 600 t ≤ 80 t ≤ 100 t ≤ 120 t ≤ 140 t ≤ 160 t ≤ 200 t ≤ 250 t ≤ 300 t ≤ 400 t ≤ 450 t ≤ 600 100 120 150 170 190 250 300 350 500 550 700
10 Evaluation of conformity 10.1 General Clause 10 of EN 1856-1:2003 shall apply where the words «system chimney products» shall be replaced by «liners, connecting flue pipes and fittings». 10.2 General The compliance of a liner, connecting flue pipe and fitting product with the requirements of this document and with the stated values (including classes) shall be demonstrated by:  initial type testing;  factory production control by the manufacturer, including product assessment. 10.3 Type testing 10.3.1 Initial type testing Initial type testing shall be performed to show conformity with this document. Tests previously performed in accordance with the provisions of this document [same product, same characteristic(s), test method, sampling procedure, system of attestation of conformity, etc.] may be taken into account. In addition, initial type testing shall be performed at the beginning of the production of a new system chimney product or at the beginning of a new method of production (where this may affect the stated properties). Where characteristics are determined on the basis of conformity with other product standards (for, metals including coatings, seals and sealants), these characteristics do not need to be reassessed provided that the designer ensures the validity of the results. Products CE marked in accordance with appropriate harmonised European specifications may be presumed to have the performances stated of them, although this does not replace the responsibility of the manufacturer to ensure that the liner, connecting flue pipe and fitting product as a whole is correctly designed and its component products have the necessary performance values. All characteristics defined in Clauses 5 and 6 shall be subject to initial type testing, with the following exception:  release of dangerous substances which may be assessed indirectly by controlling the content of the substance concerned.



EN 1856-2:2004 (E) 14 10.3.2 Further type testing Whenever a change occurs in the liner, connecting flue pipe and fitting product design, the raw material or supplier of the components, or the production process, which would change the tolerances or requirements of Clauses 5 and 6 for one or more of the characteristics, the type tests shall be repeated for the appropriate characteristic(s). 10.3.3 Sampling for type testing The size of products to be tested shall be according to Annex B. The number of liner, connecting flue pipe and fitting products to be tested for any one size shall be in accordance with the requirements of the relevant Clauses of EN 1859 and of Annex A. The results of all type tests shall be recorded and held by the manufacturer, until superseded. 10.4 Factory production control (FPC) 10.4.1 General NOTE 1: A FPC system conforming with the following requirements of the relevant part(s) of EN ISO 9001, and made specific to the requirements of this document, is considered to satisfy the above requirements. The manufacturer shall establish, document and maintain a FPC system to ensure that the manufactured products conform to the stated performance characteristics. The FPC system shall consist of procedures, regular inspections and tests and/or assessments and the use of the results to e.g. control raw and other incoming materials or components, equipment, the production process and the product. The manufacturer is responsible for organising the effective implementation of the factory production control system. Tasks and responsibilities in the production control organisation should be documented and this documentation should be kept up to-date. In each factory the manufacturer may delegate the action to a person having the necessary authority to: a) identify procedures to demonstrate conformity of the product at appropriate stages; b) i
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