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1、BS EN ISO 10456:2007 ICS 91.120.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Building materials and products Hygrothermal properties -Tabulated design values and procedures for determining declared and design thermal values (ISO 10456:2007) Licensed Copy
2、: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 2008 BSI 2008 ISBN 978 0 580 55440 7 Amendments/corrigenda issued since publication DateCom
3、ments BS EN ISO 10456:2007 National foreword This British Standard is the UK implementation of EN ISO 10456:2007. It is identical to . It supersedes BS EN ISO 10456:2000 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee B/540, Energy performance of mate
4、rials components and buildings. A list of organizations represented on this committee can be obtained on request to its secretary. 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 Sta
5、ndard cannot confer immunity from legal obligations. ISO 10456:2007 December Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10456 December 2007 ICS 91.120.10Supersedes EN ISO 10
6、456:1999 English Version Building materials and products - Hygrothermal properties - Tabulated design values and procedures for determining declared and design thermal values (ISO 10456:2007) Matriaux et produits pour le btiment - Proprits hygrothermiques - Valeurs utiles tabules et procdures pour l
7、a dtermination des valeurs thermiques dclares et utiles (ISO 10456:2007) Baustoffe und Bauprodukte - Wrme- und feuchtetechnische Eigenschaften - Tabellierte Bemessungswerte und Verfahren zur Bestimmung der wrmeschutztechnischen Nenn- und Bemessungswerte (ISO 10456:2007) This European Standard was ap
8、proved by CEN on 7 December 2007. 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 natio
9、nal standards may be obtained on application to the CEN 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 n
10、otified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,
11、 Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CENAll rights of
12、 exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10456:2007: E Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI BS EN ISO 10456:2007 EN ISO 10456:2007 (E) 3 Foreword This document (
13、EN ISO 10456:2007) has been prepared by Technical Committee ISO/TC 163 “Thermal performance and energy use in the built environment“ in collaboration with Technical Committee CEN/TC 89 “Thermal performance of buildings and building components“, the secretariat of which is held by SIS. This European
14、Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2008, and conflicting national standards shall be withdrawn at the latest by June 2008. Attention is drawn to the possibility that some of the elements of th
15、is 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 ISO 10456:1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countr
16、ies are bound to implement this European Standard: Austria, Belgium, Bulgaria, 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
17、, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 10456:2007 has been approved by CEN as a EN ISO 10456:2007 without any modification. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI BS EN ISO 10456:2007B
18、S EN ISO 10456:2007 ISO 10456:2007(E) ISO 2007 All rights reserved v Introduction This International Standard provides the means (in part) to assess the contribution that building products and services make to energy conservation and to the overall energy performance of buildings. Heat and moisture
19、transfer calculations require design values of thermal and moisture properties for materials used in building applications. Design values can be derived from declared values that are based on measured data on the product concerned, which is usually the case for thermal insulation materials. Where th
20、e design conditions differ from those of the declared value, the data needs to be converted to the applicable conditions. This International Standard provides the methods and data for making this conversion. For materials for which measured values are not available, design values can be obtained fro
21、m tables. This International Standard provides such tabulated information based on the compilation of existing data (see reference documents listed in the Bibliography). Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI BS EN ISO 10456:2
22、007BS EN ISO 10456:2007 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI BS EN ISO 10456:2007BS EN ISO 10456:2007 INTERNATIONAL STANDARD ISO 10456:2007(E) ISO 2007 All rights reserved 1 Building materials and products Hygrothermal prope
23、rties Tabulated design values and procedures for determining declared and design thermal values 1 Scope This International Standard specifies methods for the determination of declared and design thermal values for thermally homogeneous building materials and products, together with procedures to con
24、vert values obtained under one set of conditions to those valid for another set of conditions. These procedures are valid for design ambient temperatures between 30 C and +60 C. This International Standard provides conversion coefficients for temperature and for moisture. These coefficients are vali
25、d for mean temperatures between 0 C and 30 C. This International Standard also provides design data in tabular form for use in heat and moisture transfer calculations, for thermally homogeneous materials and products commonly used in building construction. 2 Normative references The following refere
26、nced 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. ISO 7345, Thermal insulation Physical quantities and definitions ISO
27、8990, Thermal insulation Determination of steady-state thermal transmission properties Calibrated and guarded hot box ISO 12572, Hygrothermal performance of building materials and products Determination of water vapour transmission properties 3 Terms, definitions, symbols and units 3.1 Terms and def
28、initions For the purposes of this document, the terms and definitions given in ISO 7345 and the following apply. 3.1.1 declared thermal value expected value of a thermal property of a building material or product assessed from measured data at reference conditions of temperature and humidity, given
29、for a stated fraction and confidence level, and corresponding to a reasonable expected service lifetime under normal conditions 3.1.2 design thermal value design thermal conductivity or design thermal resistance NOTE A given product can have more than one design value, for different applications or
30、environmental conditions. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI BS EN ISO 10456:2007BS EN ISO 10456:2007 ISO 10456:2007(E) 2 ISO 2007 All rights reserved 3.1.3 design thermal conductivity value of thermal conductivity of a bu
31、ilding material or product under specific external and internal conditions, which can be considered as typical of the performance of that material or product when incorporated in a building component 3.1.4 design thermal resistance value of thermal resistance of a building product under specific ext
32、ernal and internal conditions, which can be considered as typical of the performance of that product when incorporated in a building component 3.1.5 material piece of a product irrespective of its delivery form, shape and dimensions, without any facing or coating 3.1.6 product final form of a materi
33、al ready for use, of given shape and dimensions and including any facings or coatings 3.2 Symbols and units Symbol Quantity Unit cp specific heat capacity at constant pressure J/(kgK) Fa ageing conversion factor Fm moisture conversion factor FT temperature conversion factor fT temperature conversion
34、 coefficient K1 fu moisture conversion coefficient mass by mass a kg/kg f moisture conversion coefficient volume by volume a m3/m3 R thermal resistance m2K/W sd water vapour diffusion-equivalent air layer thickness m T thermodynamic temperature K u moisture content mass by mass kg/kg thermal conduct
35、ivity W/(mK) water vapour resistance factor density kg/m3 moisture content volume by volume m3/m3 a For conversion of thermal properties. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI BS EN ISO 10456:2007BS EN ISO 10456:2007 ISO 1045
36、6:2007(E) ISO 2007 All rights reserved 3 4 Test methods and test conditions 4.1 Tests for thermal properties 4.1.1 Test methods Measured values of thermal conductivity or thermal resistance shall be obtained using the following methods: guarded hot plate, in accordance with ISO 8302 or equivalent na
37、tional method; heat flow meter, in accordance with ISO 8301 or equivalent national method; calibrated and guarded hot box, in accordance with ISO 8990. 4.1.2 Test conditions To avoid conversions, it is recommended that measurements be conducted under conditions corresponding to the selected set of c
38、onditions given in Table 1. The mean test temperature should be chosen so that the application of the temperature coefficients does not introduce a change of more than 2 % from the measured value. The following testing conditions are required: measured thickness and density for identification; mean
39、test temperature; moisture content of the specimen during test; (for aged materials) age of the specimen and conditioning procedures before testing. 4.2 Tests for moisture properties Measured values of water vapour resistance factor or water vapour diffusion-equivalent air layer thickness shall be o
40、btained using ISO 12572. 5 Determination of declared thermal values A declared thermal value shall be given under one of the sets of conditions a) or b) in Table 1, with reference temperature I (10 C) or II (23 C). Table 1 Declared value conditions Sets of conditions I (10 C) II (23 C) Property a) b
41、) a) b) Reference temperature 10 C 10 C 23 C 23 C Moisture udry a u23,50 b udry a u23,50 b Ageing aged aged aged aged a udry is a low moisture content reached by drying according to specifications or standards for the material concerned. b u23,50 is the moisture content when in equilibrium with air
42、at 23 C and relative humidity of 50 %. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI BS EN ISO 10456:2007BS EN ISO 10456:2007 ISO 10456:2007(E) 4 ISO 2007 All rights reserved Either the declared value shall be determined at a thickne
43、ss large enough to neglect the thickness effect, or the declared values for smaller thicknesses shall be based on measurements at those thicknesses. The data used shall be either directly measured values according to the test methods given in Clause 4, or obtained indirectly by making use of an esta
44、blished correlation with a related property such as density. When all data have not been measured under the same set of conditions, they shall first be brought to one set of conditions (see Clause 7). A statistical single value estimate shall then be calculated. Annex C refers to International Stand
45、ards on statistics that may be used. During calculations, no value shall be rounded to less than three significant figures. The declared value is the estimated value of the statistical single value, rounded according to either or both of the following rules: a) for thermal conductivity, , expressed
46、in W/(mK): if 0,08:u rounding to nearest higher 0,001 W/(mK); if 0,080,20: 400 0,065 1 500 40 20 Carpet / textile flooring 200 0,06 1 300 5 5 Floor coverings Linoleum 1 200 0,17 1 400 1 000 800 Air 1,23 0,025 1 008 1 1 Carbon dioxide 1,95 0,014 820 1 1 Argon 1,70 0,017 519 1 1 Sulphur hexafluoride 6
47、,36 0,013 614 1 1 Krypton 3,56 0,009 0 245 1 1 Gases Xenon 5,68 0,005 4 160 1 1 Soda lime glass (including “float glass”) 2 500 1,00 750 Quartz glass 2 200 1,40 750 Glass Glass mosaic 2 000 1,20 750 Ice at 10 C 920 2,30 2 000 Ice at 0 C 900 2,20 2 000 Snow, freshly fallen ( 100 0,032 0,035 0,040 0,0
48、53 0,003 0 0,003 2 0,003 4 0,003 7 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:03, Uncontrolled Copy, (c) BSI BS EN ISO 10456:2007BS EN ISO 10456:2007 ISO 10456:2007(E) 16 ISO 2007 All rights reserved Table A.3 Extruded polystyrene Product type Conductivity W/(m
49、K) Conversion coefficient fT 1/K Without skin 0,025 0,030 0,040 0,004 6 0,004 5 0,004 5 With skin, fine cell products without skin 0,025 0,030 0,035 0,004 0 0,003 6 0,003 5 With impermeable cover 0,025 0,030 0,035 0,040 0,003 0 0,002 8 0,002 7 0,002 6 Table A.4 Polyurethane foam Product type Conductivity W/(mK) Conversion coefficient fT 1/K Products without facings 0,025 0,030 0,005 5 0,005 0 Products with impermeable facings 0,022 0