BS EN 1946-1-1999 Thermal performance of building products and components - Specific criteria for the assessment of laboratories measuring heat transfer properties - Common criteri.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1946-1:1999 The Eur

2、opean Standard EN 1946-1:1999 has the status of a British Standard ICS 91.100.01; 91.120.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Thermal performance of building products and components Specific criteria for the assessment of laboratories measuring heat transfer prop

3、erties Part 1: Common criteriaThis British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 1999 BSI 05-1999 ISBN 0 580 32161 4 BS EN 1946-1:1999 Amendments issued sinc

4、e publication Amd. No. Date Text affected National foreword This British Standard is the English language version of EN 1946-1:1999. The UK participation in its preparation was entrusted by Technical Committee RHE/9, Thermal insulating materials, to Subcommittee RHE/9/2, Thermal properties of insula

5、ting materials, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgat

6、e them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the sec

7、tion entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application

8、. 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 front cover, the EN title page, pages 2 to 5 and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation

9、 Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1946-1:1999 E EUROPEAN STANDARD EN 1946-1 NORME EUROPE ENNE EUROPA ISCHE NORM January

10、 1999 ICS 91.100.01; 91.120.10 Descriptors: building products, heat transfer, thermal properties, testing, laboratory assessment, documentation English version Thermal performance of building products and components Specific criteria for the assessment of laboratories measuring heat transfer propert

11、ies Part 1: Common criteria Performance thermique des produits et composants pour le ba timent Crite res particuliers pour le valuation des laboratoires mesurant les proprie te s de transmission thermique Partie 1: Crite res communs Wa rmetechnisches Verhalten von Bauprodukten und Bauteilen Technisc

12、he Kriterien zur Begutachtung von Laboratorien bei der Durchfu hrung der Messungen von Wa rmeu bertragungseigenschaften Teil 1: Allgemeingu ltige Regeln This European Standard was approved by CEN on 13 December 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which sti

13、pulate 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 national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard

14、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 notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards

15、 bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1946-1:1999 BSI 05-1999 Foreword This European Standard has been prepared by Technical C

16、ommittee CEN/TC 89, Thermal performance of buildings and building components, the 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 July 1999, and conflicting na

17、tional standards shall be withdrawn at the latest by July 1999. This European Standard is divided into parts. The first part covers common criteria applicable to all heat transfer property measurements; each subsequent part covers the specific technical criteria applicable to each heat transfer prop

18、erty measurement method described in appropriate standards. The following parts have been developed: Part 1: Common criteria; Part 2: Measurements by guarded hot plate method; Part 3: Measurements by heat flow meter method; Part 4: Measurements by hot box methods; Part 5: Measurements by pipe test m

19、ethods. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Nor

20、way, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Assessment 4 5 Documentation 4Page 3 EN 1946-1:1999 BSI 05-1999 Introduction In the field of heat transfer property testing, many pieces of t

21、est equipment have been constructed by the laboratories themselves and they often differ significantly in their detailed design, so that each equipment is assessed as for a prototype. This makes the assessment of the equipment accuracy a very complex matter, requiring in-depth knowledge and understa

22、nding of the equipment and test procedures employed and of the factors that can influence the accuracy of the results. Because of the complexity of standardized procedures for the assessment of equipment accuracy, they have been separated from standards on equipment description and testing procedure

23、s to be used by the operator in every day testing practice. There is therefore a need for a link between the accreditation standards of the EN 45000 series and each relevant standard test method, by providing standardized assessment procedures specifically suitable to heat transfer property measurem

24、ents. While the majority of this standard is devoted to fixing standardized procedures for the assessment of equipment accuracy, the adoption of these procedures in laboratory assessment according to EN 45000 series standards defines by itself the required level of competence of the laboratory perso

25、nnel. 1 Scope This standard gives specific technical criteria to be used within the frame of the general criteria given in EN 45001 and EN 45002 for the assessment of laboratories performing heat transfer property measurements of building products and components according to standardized test method

26、s. It is relevant both to assessments conducted internally and to those carried out formally by an accreditation body, and is intended to be of assistance to all interested parties. It gives contents of the documentation required by EN 45001 (equipment manual, calibration and maintenance files, meas

27、urement procedure document) and the procedures for the assessment of equipment accuracy and performance check. All other requirements regarding laboratories undertaking heat transfer property measurements are given in the EN 45000 series. This part 1 of this standard gives assessment requirements co

28、mmon to various test methods; the subsequent parts give assessment requirements, which are relevant to each test method. The application of this standard assumes an adequate level of competence for the personnel involved. 2 Normative references This standard incorporates by dated or undated referenc

29、e, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by

30、 amendment or revision. For undated references the latest edition of the publication referred to applies. EN 45001, General criteria for the operation of testing laboratories. EN 45002, General criteria for the assessment of testing laboratories. EN 45020, General terms and their definitions concern

31、ing standardization and related activities. 3 Definitions For the purposes of this standard, the definitions of “test”, “test method” and “(laboratory) proficiency testing” given in EN 45020 and the following definitions apply. 3.1 heat transfer property measurement determination of a heat transfer

32、property according to a standardized test method 3.2 equipment manual document containing information on performance specifications, descriptions, design, error analysis and initial performance check for equipment 3.3 measurement procedure document document containing information on specimen handlin

33、g and preparation, testing procedures, test reporting, scheduled equipment checks and maintenance 3.4 calibration and maintenance file file documenting, for all equipment, all calibrations and calibration results and all maintenance actions 3.5 laboratory test work registers registers or files conta

34、ining for each test all the documentation and correspondence to identify the test specimen, the measured data, raw calculations, computer printouts, and copy of the final reportPage 4 EN 1946-1:1999 BSI 05-1999 3.6 reference material material or substance, one or more of whose property values are su

35、fficiently homogeneous and well established to be used for the calibration of an apparatus, the assessment of a measurement method, or for assigning values to materials ISO Guide 30:1992 3.7 certified reference material reference material, accompanied by a certificate, one or more of whose property

36、values are certified by a procedure which establishes traceability to an accurate realization of the unit in which the property values are expressed, and for which each certified value is accompanied by an uncertainty at a stated level of confidence ISO Guide 30:1992 3.8 (measurement) standard mater

37、ial measure, measuring instrument, reference material or measuring system intended to define, realize, conserve or reproduce a unit or one or more values of a quantity to serve as a reference International Vocabulary of Basic and General Terms in Metrology, ISO, 1993 3.9 transfer standard standard u

38、sed as an intermediary to compare standards International Vocabulary of Basic and General Terms in Metrology, ISO, 1993 NOTE The term “transfer device” should be used when the intermediary is not a standard. 4 Assessment 4.1 EN 45000 series requirements This standard assumes that: a) the accreditati

39、on body responsible for the assessment meets the general criteria specified in EN 45000 series and operates systems and assessment procedures in conformity with the general criteria set out in EN 45000 series; b) the test laboratory is organized and run in accordance with the general criteria set ou

40、t in EN 45001; c) the test equipment and measurement procedures used by the laboratory for heat transfer property measurements conform with the requirements set out in the relevant standard test methods; d) the assessment of equipment accuracy and the related performance checks and proficiency testi

41、ng conform with the appropriate part of this standard and are adequately documented. 4.2 Documentation For the purpose of this standard and in conformity with EN 45001, the laboratory is required to have appropriate documentation. The information to be given in this documentation, as defined in subs

42、equent parts, is mandatory. General guidance on the content of these documents for heat transfer property measurement is given in clause 5 of this part: specific information on the content of these documents for each type of heat transfer property measurement is respectively given in clauses 4, 5 an

43、d 6 of the relevant part of this standard. 4.3 Laboratory staff Staff responsible for testing, maintenance and calibration shall be able to explain and verify all the items included in the equipment manual and measurement procedure document, including their relationship to the standard test method a

44、ccuracy and reproducibility. The staff responsible for testing shall be capable of deciding whether a specimen can or cannot be tested in the available laboratory equipment and shall be able to take appropriate preliminary decisions on testing conditions and specimen handling when required by the re

45、levant standard test method. 4.4 Proficiency testing The assessment shall include proficiency tests on specimens whose dimensions and reported heat transfer properties are within the range for which the laboratory is seeking accreditation. NOTE 1 In general, good equipment design and a detailed perf

46、ormance check is sufficient to ensure the correct operation of the equipment within the expected accuracy in all planned testing conditions. Nevertheless, the actual demonstration of the proper operation of the equipment can only be achieved through proficiency tests. Specimens for proficiency testi

47、ng are usually transfer standards, see 3.9, which have been developed by a national standard laboratory or equivalent. As testing errors and the ultimate accuracy and reproducibility of a test are highly dependent on test specimen properties and testing conditions, the specimens for proficiency test

48、ing shall cover the most critical testing conditions, and the performance checks carried out by the laboratory shall cover all expected testing situations. NOTE 2 Specimens measured by the laboratory and re-tested at a national standard laboratory or equivalent, providing that the material of the sp

49、ecimen is recognized as sufficiently stable for this purpose, are an acceptable alternative. 5 Documentation 5.1 General This clause gives specific information to be provided in the documentation specified in EN 45001, and which is suggested to be split in three parts: equipment manual; calibration and maintenance files; measurement procedure document.Page 5 EN 1946-1:1999 BSI 05-1999 5.2 Equipment manual 5.2.1 General For each piece of heat transfer property measurement equipment, the equipment manual s