1、BRITISH STANDARD BSENISO 9251:1996 ISO9251:1987 Thermal insulation Heat transfer conditions and properties of materials Vocabulary The European Standard ENISO9251:1995 has the status of a BritishStandard UDC536.2:001.4BSENISO9251:1996 This British Standard, having been prepared under the directionof
2、 the Engineering SectorBoard, was published underthe authority of the Standards Board and comesintoeffect on 15January 1996 BSI01-2000 The following BSI references relate to the work on this standard: Committee reference RHE/9 Draft announced in BSI News August 1994 ISBN0580232859 Cooperating organi
3、zations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standard
4、Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano
5、di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland
6、Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSENISO9251:1996 BSI 01-2000 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of ENISO9251 3 National annex NA (
7、informative) Committees responsible Inside back coverBSENISO9251:1996 ii BSI 01-2000 National foreword This British Standard has been prepared by Technical Committee RHE/9 and is the English language version of ENISO9251 Thermal insulationHeat transfer conditions and properties of materialsVocabular
8、y published by the European Committee for Standardization (CEN). It is identical with ISO 9251:1987 published by the International Organization for Standardization (ISO). ENISO9251 was produced as a result of international discussion in which the UK took an active part. A British Standard does not p
9、urport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside fron
10、t cover, pages i and ii, theENISO title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE E
11、UROPISCHE NORM ENISO9251 December 1995 ICS01.040.27;27.220 Descriptors: Thermal insulation, heat transfer, physical properties, vocabulary English version Thermal insulationHeat transfer conditions and properties of materialsVocabulary (ISO9251:1987) Isolation thermiqueConditions de transfert thermi
12、que et proprits des matriauxVocabulaire (ISO9251:1987) WrmeschutzZustnde der Wrmebertragung und StoffeigenschaftenBegriffe (ISO9251:1987) This European Standard was approved by CEN on 1995-01-05. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions
13、 for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three offic
14、ial 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 notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, B
15、elgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de S
16、tassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref.No.ENISO9251:1995EENISO9251:1995 BSI 01-2000 2 Foreword The text of the International Standard from ISO/TC163 “Thermal insulation” of the I
17、nternational Organization for Standardization (ISO) has been taken over as a European Standard by the Technical Committee CEN/TC89, Thermal performance of buildings components. This European Standard shall be given the status ofa national standard, either by publication of an identical text or by en
18、dorsement, at the latest by June1996, and conflicting national standards shall be withdrawn at the latest by June1996. According to the CEN/CENELEC Internal Regulations, the following countries are bound toimplement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece,
19、 Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 0 Introduction 3 1 Scope and field of application 3 2 Heat transfer conditions 3 3 Properties of materials 4ENISO9251:1995 BSI 01-2000 3ENISO9251:1995 4 BSI 01-2
20、000ENISO9251:1995 BSI 01-2000 56 blankBSENISO9251:1996 BSI 01-2000 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by theEngineering Sector Board to Technical Committee RHE/9 upon which the following b
21、odies were represented: Autoclaved Aerated Concrete Products Association Chartered Institution of Building Services Engineers Combustion Engineering Association Concrete Block Association Cork Industry Federation Cranfield University Department of Health Department of the Environment (Building Resea
22、rch Establishment) Department of Trade and Industry (National Physical Laboratory) Electricity Association Eurisol (UK Mineral Wool Association) European Phenolic Foam Association Gypsum Products Development Association Power Generation Contractors Association PGCA (BEAMA Ltd.) Royal Institute of Br
23、itish Architects Thermal Insulation Manufacturers and Suppliers Association (TIMSA) Thermal Insulations Contractors Association The following bodies were also represented in the drafting of the standard, through subcommittees andpanels: Calcium Silicate Brick Association Ltd. Institute of Refrigerat
24、ion SGS United Kingdom Ltd.BSENISO 9251:1996 ISO9251:1987 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is inco
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