EN 24-1975 en Doors Measurement of Defects of General Flatness of Door Leaves《门 门扇总平直度缺陷测量》.pdf

1、BRITISH STANDARD CONFIRMED DECEMBER1995 BS 5277:1976 EN 24 Doors Measurementof defects of general flatness of door leaves UDC 69.028.1 41:620.1:531.717.81BS5277:1976 This British Standard was published under the authorityofthe Executive Boardon 31 March1976 BSI 03-1999 The following BSI references r

2、elate to the work on this standard: Committee reference B/141 Draft for comment 73/10125 ISBN 0 580 08608 9 Co-operating organizations The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizations of the follow

3、ing Western European countries: 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. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary o

4、f pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages2 to 4, 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 t

5、he inside front cover. Austria Oesterreichisches Normungsinstitut Belgium Institut Belge de Normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliitto, r.y. France Association Franaise de Normalisation Germany Deutscher Normenausschuss Ireland Institute for Industrial Rese

6、arch and Standards Italy Ente Nazionale Italiano di Unificazione Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Repartio de Normalizao Sweden Sveriges Standardiseringskommission Switzerland Association Suisse de Normalisation United Kingdom British Stand

7、ards Institution Amendments issued since publication Amd. No. Date of issue CommentsBS5277:1976 BSI 03-1999 i Contents Page Co-operating organizations Inside front cover Brief history 2 Text of EN 24 3 National Appendix A Inside back coverii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN

8、24 First edition June 1975 UDC 69.028.141:620.1:531.717.81 Descriptors: Doors, surface properties, mechanical properties, geometric characteristics, flatness, dimensional measurement, verifying English version Doors Measurement of defects of general flatness of door leaves Portes. Mesurage des dfaut

9、s de planit gnrale des vantaux de portes Tren: Prfung von Fehlern in der allgemeinen Ebenheit von Trblttern This standard was accepted by CEN as a European Standard on30December1974 whereby the members committed to accord to it the status of a national standard must do so without change. The details

10、 of the conditions under which members are so committed are given in the CEN constitution. Up-to-date lists of national standards organizations which have adopted this European Standard, and relevant bibliographical references, may be obtained on application to the CEN Central Secretariat or to the

11、sales office of any CEN member. This European Standard exists in three versions (French, English, German), recognized by CEN as equivalent. National versions in other languages rank as translations, and in case of doubt should be checked against one of the recognized versions (French, English, Germa

12、n). CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komite

13、e fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels Copyright reserved to all national CEN membersEN24 BSI 03-1999 2 Brief history European Standard EN24 was drawn up by working group CEN/WG33 “Technological tests for doors, windows, fastenings and their building hardware”, the sec

14、retariat of which is held by AFNOR. It is the first method of a series applicable to doors. Work on it was undertaken in June1971 by the group of experts EG3 “Door tests” created in February1971 by the working group, and the method was accepted in1972 by CEN/WG33. This European Standard was adopted

15、by CEN on30 December1974, on the strength of its acceptance by the following member countries: Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, Norway, Spain, Switzerland and United Kingdom. Contents Page Brief history ii 1 Scope 3 2 Field of application 3 3 Definiti

16、on 3 4 Principle of the method 3 5 Operating method 3 6 Accuracy of measurement 3 7 Statement of results 3EN24 BSI 03-1999 3 1 Scope The present standard determines the method which has to be used to measure the defects of general flatness of door leaves. 2 Field of application This standard can be

17、applied to all doors which are nominally flat and rigid. 3 Definition For the purpose of the present standard the concept of general flatness is limited to that of the coincidence of the edges of a face of a door leaf with a reference plane. 4 Principle of the method The measurement of the defects o

18、f general flatness of a door leaf consists in measuring on one face its twist as well as the longitudinal and transverse bending close to the edges. 5 Operating method The door leaf is mounted vertically so that there is no external restraint. 5.1 Measurement of twist. The measurement of twist is ca

19、rried out on one face of the leaf. Any three corners of this face determine a plane of reference. The deviation of the fourth corner is measured with respect to this plane. The measuring points shall not be more than20mm from the edges. 5.2 Measurement of bending. The measurement of bending(s) is ca

20、rried out on one of the faces of the door leaf with respect to straight lines parallel to each edge and located20mm or less from each one. Measure the distance from the face to the straight lines. 6 Accuracy of measurement The twist and bending(s) are to be measured with a maximum uncertainty of 0.5

21、mm. 7 Statement of results The results are to be expressed to the nearest millimetre, 0.5mm being rounded down.4 blankBS 5277:1976 BSI 03-1999 National Appendix A The United Kingdom participation in the preparation of this European Standard came under the authority of the Building Divisional Council

22、. The following organizations were involved in the work on this standard: Aluminium Window Association Association of Builders Hardware Manufacturers British Plastics Federation British Woodwork Manufacturers Association Department of the Environment, Building Research Establishment Department of th

23、e Environment, Housing and Construction Department of the Environment, Property Services Agency Fibre Building Board Development Organization Ltd. Flat Glass Manufacturers Association Greater London Council Incorporated Association of Architects and Surveyors Institution of Fire Engineers Interdepar

24、tmental Construction Development Group Metal Window Federation of Great Britain Modular Society Royal Institute of British Architects Timber Research and Development AssociationBSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

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