1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58chimneys Requirements and test methodsThe European Standard EN 13069:2005 has the status of a Briti
2、sh StandardICS 91.060.40Chimneys Clay/ceramic outer walls for system BRITISH STANDARDBS EN 13069:2005BS EN 13069:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 5 December 2005 BSI 5 December 2005ISBN 0 580 46521 7Cross-referencesThe Brit
3、ish Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Onl
4、ine.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 does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside
5、 front cover, the EN title page, pages 2 to 37 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this committee can be obtained on request to
6、 its secretary.enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard is the official English language version of EN 13069:2005.The UK parti
7、cipation in its preparation was entrusted to Technical Committee B/506, Chimneys, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 13069July 2005ICS 91.060.40Englis
8、h VersionChimneys - Clay/ceramic outer walls for system chimneys -Requirements and test methodsConduits de fume - Enveloppes extrieures en terrecuite/cramique pour systmes de conduits de fume -Prescriptions et mthodes dessaiAbgasanlagen - Keramik-Auenschalen fr System-Abgasanlagen - Anforderungen un
9、d PrfungenThis European Standard was approved by CEN on 27 October 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 bibliograph
10、ical 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 me
11、mber 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, Lithu
12、ania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All right
13、s of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13069:2005: EEN 13069:2005 (E) 2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Terms and definitions.5 4 Materials 5 5 Tolerances on dimensions.5 6 Compressive strength 6 7 Flexura
14、l strength under wind loading .6 8 Thermal shock.7 9 Resistance to fire 7 10 Thermal resistance .8 11 Water absorption and bulk density8 12 Resistance to freeze-thaw 8 13 Evaluation of conformity 8 14 Test methods.9 15 Designation .20 16 Marking, labelling and packaging20 Annex A (normative) Thermal
15、 resistance .21 Annex B (normative) Sampling procedures for an AQL of 10 % and Inspection Level S2 .27 Annex ZA (informative) Clauses of this European Standard addressing the provisions of EU Construction Products Directives .31 Bibliography.37 EN 13069:2005 (E) 3 Foreword This document (EN 13069:20
16、05) 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 2006, and conflicting national
17、standards shall be withdrawn at the latest by April 2007. 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 89/106/EEC. For relationship with EU Directive(s), see inform
18、ative 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, G
19、ermany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 13069:2005 (E) 4 1 Scope This European Standard specifies the performance requirements for factory-made
20、 clay/ceramic chimney outer wall elements used to form the outer walls of chimneys and which are used in combination with flue liners in site. It applies to clay/ceramic chimney outer wall elements with solid walls or walls with vertical perforations (see Figure 1) which have square, rectangular or
21、circular passages. Testing, making and inspection requirements are covered by this standard. Figure 1 - Examples of clay/ceramic chimney outer wall elements with and without vertical perforations 2 Normative references The following referenced documents are indispensable for the application of this
22、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 14297: 2004, Chimneys Freeze-thaw resis
23、tance test method for chimney products. 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 7500-1:2004). ISO 2859-1, Sampling procedures for inspection b
24、y attributes - Part 1: Sampling schemes indexed by acceptable quality limit (AQL) for lot-by-lot inspection. EN 13069:2005 (E) 5 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
25、of size which is a convenient round number equal to or approximately equal to either: the internal diameter in millimetres of the circular flue passage, or the internal width in millimetres of blocks with square section flues, or the internal width and breadth in millimetres of the internal transver
26、se dimensions of outer walls with rectangular flueways 3.2 Nominal height numerical designation of the height in millimetres of a standard outer wall excluding any projecting spigot, which is a convenient round number. 4 Materials 4.1 Outer walls Clay/ceramic outer walls elements shall be manufactur
27、ed from suitable clay/ceramic materials which, when fired, meet the performance requirements given in this standard. 5 Tolerances on dimensions 5.1 Internal transverse dimensions When tested in accordance with 14.1, the internal diameter of outer walls with circular flues measured on any diameter sh
28、all not deviate more than 3 % of the manufacturers stated nominal internal diameter. For outer walls with square and rectangular passages, the tolerances on the internal widths and breadths shall not deviate more than 3 % of the manufacturers stated nominal internal dimension of the side. NOTE Corne
29、rs of the passages may be rounded. 5.2 Height When tested in accordance with 14.2, the height of an outer wall shall not deviate more than 3 % of the manufacturers stated nominal height subject to a maximum value of 10 mm. 5.3 Straightness When tested in accordance with 14.3, the permissible deviati
30、on from straightness of straight outer walls shall be 1 % of the test length. 5.4 Squareness of ends When tested in accordance with 14.4, the permissible deviation from square of the ends of straight clay/ceramic outer wall elements shall be not greater than an angle of slope 30 mm/m. EN 13069:2005
31、(E) 6 5.5 Squareness of corners and flatness of walls When tested in accordance with 14.5, the permissible deviation from square of the corners and flatness of walls for square or rectangular shape straight clay/ceramic outer wall elements, shall be not greater than 5 % of the manufacturers stated n
32、ominal internal width or breadth. 5.6 Joints The design and dimensions of the joints shall be as specified by the manufacturer to provide an adequate joint. 6 Compressive strength 6.1 Straight outer walls When tested in accordance with 14.6 and 14.7.3.2.2, straight outer walls shall withstand an int
33、ensity of loading of 10 MN/m. 6.2 Minimum load for outer wall elements with inspection opening sections When tested in accordance with 14.6, the minimum load shall be as given in Table 1. Table 1 Minimum load Height of chimney (m) Minimum load (kN) H 12,5 25 12,5 4007A4/9, we will take 9/14/13106,4A
34、LGrhc=(A.6) for Gr 4007A 4/9, we will take hc = 0,0366 / L A.2.3.3 Heat transmitted by radiation r = hr(HD)(T1-T2) in W is the heat flux transmitted by radiation, in W hr is the radiation coefficient in W/mK +=121231124FFThrm(A.7) Tm= mean temperature (T1+T2)/2, in K = Stefan-Bolzman constant = clay
35、 emissivity equal to 0,9 F12is the form factor of the face 1 towards face 2 With the heat flux transmitted in the cavity (c and r), we may determine a network of equivalent electrical resistances for the cavity. Thus, we may calculate the thermal equivalent resistance of the cavity and its thermal c
36、onductivity. A.2.4 Calculations A.2.4.1 Mesh After the mesh of the outer wall is generated, the following parameters for an (x, y) direction are added to the data: number of nodes in the “x“ direction, EN 13069:2005 (E) 25 number of nodes in the “y“ direction, number of the different materials in th
37、e block (clay, insulation or cavity), dimensions of the mesh along the “x“ direction, dimensions of the mesh along the “y“ direction, air characteristics: temperatures (Ti,Te) and heat transfer coefficients (hi,he), materials characteristics : thermal conductivity. A.2.4.2 Finite difference equation
38、 The heat flux density received by each network (i,j) is determined according the Forriers law: = - i,j, grad Ti,jTi,j, : temperature of the node i,j : thermal conductivity of the node i,j For each internal node and each boundary node, an equation is produced. For whole network a linear system of n
39、equations with n unknown Ti,j is obtained. Starting from the initial system, all the temperatures are equal: TO= Ti,j= (Ti+Te)/2 From this condition, the temperatures of the network are calculated by using the method of “Gauss Seidel“. Having calculated the network temperatures, the surface temperat
40、ures (Tsi,Tse) are determined and then the heat flux density on the internal and external boundaries is obtained: = hi(Ti-Tsi) in W/m2 = he(Tse-Te) in W/m2Tse: external surface temperature Tsi : internal surface temperature Rth = (Ti-Te)/ in mC/W and for the block R = Rth- 1/hi- 1/hein mC/WEN 13069:
41、2005 (E) 26 A.3 Approximate thermal resistance values Table A.1 gives the approximate thermal resistance values for clay/ceramic outer walls. Table A.1: Thermal resistance of clay/ceramic outer walls Perforations Overall wall thickness mm Insulation R m2K/W Without up to 50 without 0,05 With 1 row u
42、p to 30 without 0,08 With 1 row from 30 to 60 without 0,12 With 2 rows from 60 without 0,2 With 1 row from 30 to 60 added 0,85 With 2 rows from 60 integrated 1,05 EN 13069:2005 (E) 27 Annex B (normative) Sampling procedures for an AQL of 10 % and Inspection Level S2 B.1 Acceptability determination B
43、.1.1 General Single or double sampling may be used. B.1.2 Single sampling If the number of defectives found in the sample is equal to or less than the acceptance number, the batch shall be accepted. If the number of defectives is equal to or greater than the rejection number, the batch shall be reje
44、cted. When reduced inspection is in effect and the acceptance number has been exceeded, but the rejection number has not been reached, the batch shall be accepted and normal inspection reinstated. If the rejection number has been reached or exceeded, the batch shall be rejected and normal inspection
45、 reinstated. B.1.3 Double sampling The number of sample units shall be equal to the first sample size in the plan. If the number of defectives found in the first sample is equal to or less than the first acceptance number, the batch shall be accepted. If the number of defectives found in the first s
46、ample is equal to or greater than the first rejection number, the batch shall be rejected. If the number of defectives found in the first sample is between the first acceptance and rejection numbers, the second sample of the size given in the plan shall be inspected. The number of defectives found i
47、n the first and second samples shall be accumulated. If the cumulative number of defectives is equal to or less than the second acceptance number, the batch shall be accepted. If the cumulative number of defectives is equal to or greater than the second rejection number, the batch shall be rejected.
48、 If this occurs on reduced inspection, normal inspection shall be reinstated for the next batch. When reduced inspection is in effect and, after the second sample, the acceptance number has been exceeded but the rejection number has not yet been reached, the batch shall be accepted and normal inspec
49、tion reinstated.EN 13069:2005 (E) 28 B.2 Normal inspection Table B.1- Sampling plans for normal inspection Batch size Single sampling Double sampling Sample size Accept number Reject number First sample size Accept number Reject number Second sample size Accept number Reject number 2 to 1200 5 1 2 3 0 2 3 1 2 1201 to 20000 8 2 3 5 0 3 5 3 4
