EN ISO 10456-2007 en Building materials and products - Hygrothermal properties - Tabulated design values and procedures for determining declared and design thermal values《建筑材料和制品 温.pdf

1、BS EN ISO10456:2007ICS 91.120.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDBuilding materialsand products Hygrothermalproperties - Tabulateddesign values andprocedures fordetermining declaredand design thermalvaluesIncorporating December 2009corrigendum Nat

2、ional forewordThis British Standard is the UK implementation of EN ISO 10456:2007. It is identical to ISO 10456:2007, incorporating corrigendum December 2009. It supersedes BS EN ISO 10456:2000 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/540, Ene

3、rgy performance of materials 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.Complianc

4、e with a British Standard cannot confer immunity from legal obligations.BS EN ISO 10456:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2008 BSI 2010 Amendments/corrigenda issued since publicationDate Comments 28 February 2010

5、 Implementation of ISO corrigendum December 2009, Table 4 amendedISBN 978 0 580 70019 4EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 10456December 2007ICS 91.120.10 Supersedes EN ISO 10456:1999 English VersionBuilding materials and products - Hygrothermal properties -Tabulated design values

6、and procedures for determiningdeclared and design thermal values (ISO 10456:2007)Matriaux et produits pour le btiment - Propritshygrothermiques - Valeurs utiles tabules et procdurespour la dtermination des valeurs thermiques dclares etutiles (ISO 10456:2007)Baustoffe und Bauprodukte - Wrme- undfeuch

7、tetechnische Eigenschaften - TabellierteBemessungswerte und Verfahren zur Bestimmung derwrmeschutztechnischen Nenn- und Bemessungswerte(ISO 10456:2007)This European Standard was approved by CEN on 7 December 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipula

8、te 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 CEN Management Centre or to any CEN member.This European Standard exist

9、s 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodie

10、s of 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, Sweden, Switzerland and United Kingdom.EUROPEA

11、N COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 10456:2007: EBS EN ISO 10456:2

12、007EN ISO 10456:2007 (E) 3 Foreword This document (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

13、secretariat of which is held by SIS. 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 June 2008, and conflicting national standards shall be withdrawn at the latest by June 2008. Attention is drawn

14、 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 ISO 10456:1999. According to the CEN/CENELEC Internal Regulations, the natio

15、nal standards organizations of the following countries 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, P

16、oland, Portugal, Romania, Slovakia, Slovenia, Spain, 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. BS EN ISO 10456:2007ISO 10456:2007(E) ISO 2010 All rights reserved vIntroduction Th

17、is 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 transfer calculations require design values of thermal and moisture properties for m

18、aterials 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 the design conditions differ from those of the declared value, the data needs to be co

19、nverted 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 from tables. This International Standard provides such tabulated information based on t

20、he compilation of existing data (see reference documents listed in the Bibliography). BS EN ISO 10456:2007BS EN ISO 10456:2007INTERNATIONAL STANDARD ISO 10456:2007(E) ISO 2010 All rights reserved 1Building materials and products Hygrothermal properties Tabulated design values and procedures for dete

21、rmining 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 convert values obtained under one set of conditions to t

22、hose 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 valid for mean temperatures between 0 C and 30 C. This In

23、ternational 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 referenced documents are indispensable for the application

24、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 8990, Thermal insulation Determination of steady-stat

25、e 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 definitions For the purposes of this document, the terms

26、 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 for a stated fraction and confidence level, and corre

27、sponding 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 environmental conditions. BS EN ISO 10456:2007ISO 104

28、56:2007(E) 2 ISO 2010 All rights reserved3.1.3 design thermal conductivity value of thermal conductivity of a building 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 buildin

29、g component 3.1.4 design thermal resistance value of thermal resistance of a building product under specific external 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 irrespectiv

30、e of its delivery form, shape and dimensions, without any facing or coating 3.1.6 product final form of a material ready for use, of given shape and dimensions and including any facings or coatings 3.2 Symbols and units Symbol Quantity Unit cpspecific heat capacity at constant pressure J/(kgK) Faage

31、ing conversion factor Fmmoisture conversion factor FTtemperature conversion factor fTtemperature conversion coefficient K1fumoisture conversion coefficient mass by mass akg/kg fmoisture conversion coefficient volume by volume am3/m3R thermal resistance m2K/W sdwater vapour diffusion-equivalent air l

32、ayer thickness m T thermodynamic temperature K u moisture content mass by mass kg/kg thermal conductivity W/(mK) water vapour resistance factor density kg/m3 moisture content volume by volume m3/m3aFor conversion of thermal properties. BS EN ISO 10456:2007ISO 10456:2007(E) ISO 2010 All rights reserv

33、ed 34 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 national method; heat flow meter, in ac

34、cordance 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 conditions given in Table 1. The mean

35、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 test temperature; moisture content of

36、 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 obtained using ISO 12572. 5 Determinat

37、ion 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) a) b) Reference temperature 10 C 10

38、 C 23 C 23 C Moisture udryau23,50budryau23,50bAgeing aged aged aged aged audryis a low moisture content reached by drying according to specifications or standards for the material concerned. bu23,50is the moisture content when in equilibrium with air at 23 C and relative humidity of 50 %. BS EN ISO

39、10456:2007ISO 10456:2007(E) 4 ISO 2010 All rights reservedEither the declared value shall be determined at a thickness 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 direc

40、tly measured values according to the test methods given in Clause 4, or obtained indirectly by making use of an established 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

41、 (see Clause 7). A statistical single value estimate shall then be calculated. Annex C refers to International Standards 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

42、 single value, rounded according to either or both of the following rules: a) for thermal conductivity, , expressed in W/(mK): if 0,08 : u rounding to nearest higher 0,001 W/(mK); if 0,08 0,20 : 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

43、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 6,36 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 mos

44、aic 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 0,053 0,003 0 0,003 2 0,003 4 0,003 7 BS EN ISO 10456:2007ISO 10456:2007(E) 16 ISO 2010 All rights reservedTable A.3 Extruded polystyrene Product type Conductivity W/(mK) Conversion c

45、oefficient fT1/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) Con

46、version coefficient fT1/K Products without facings 0,025 0,030 0,005 5 0,005 0 Products with impermeable facings 0,022 0,025 0,005 5 0,005 5 Table A.5 Phenolic foam Product type Conductivity W/(mK) Conversion coefficient fT1/K Closed cell foam ( 90 %) 0 C to 20 C 20 C to 30 C a, bup to 0,025 0,002 0

47、 0,005 0 Open cell foam 0 C to 30 C 0,032 0,002 9 aConversions shall be applied separately between 0 C and 20 C and between 20 C and 30 C. To convert from 10 C to 25 C, first convert from 10 C to 20 C, then from 20 C to 25 C. bConversion coefficients apply for blowing agents of pentane or hydro-fluo

48、ro-carbon (HFC). They may differ for other blowing agents. Table A.6 Cellular glass Product type Conductivity W/(mK) Conversion coefficient fT1/K All products 0,035 0,040 0,045 0,050 0,055 0,004 3 0,003 7 0,003 3 0,003 0 0,002 7 BS EN ISO 10456:2007ISO 10456:2007(E) ISO 2010 All rights reserved 17Ta

49、ble A.7 Rigid boards of perlite, fibres and binders Product type Conductivity W/(mK) Conversion coefficient fT1/K All products all 0,003 3 Table A.8 Wood wool boards Product type Conductivity W/(mK) Conversion coefficient fT1/K All products 0,070 0,080 0,090 0,004 0 0,004 1 0,004 6 Table A.9 Expanded cork Product type Conductivity W/(mK) Conversion coefficient fT1/K All products all 0,002 7 Tabl