BS-EN-20898-7-1995 ISO-898-7-1992.pdf
《BS-EN-20898-7-1995 ISO-898-7-1992.pdf》由会员分享,可在线阅读,更多相关《BS-EN-20898-7-1995 ISO-898-7-1992.pdf(12页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 20898-7:1995 ISO 898-7: 1992 Mechanical properties of fasteners Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm The European Standard EN 20898-7:1995 has the status of a British Standard Licensed Copy: sheffieldun sheffieldu
2、n, na, Wed Nov 01 05:20:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20898-7:1995 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 July 1995 BSI 07-1999 The fol
3、lowing BSI references relate to the work on this standard: Committee reference GME/9 Draft for comment 90/80108 DC ISBN 0 580 24385 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee GME/9, Bolts, nuts and accessories, upo
4、n which the following bodies were represented: BEAMA Ltd. British Constructional Steelwork Association Ltd. British Industrial Fasteners Federation British Steel Industry British Steel Industry (Wire Section) Gauge and Tool Makers Association National Association of Fastener Stockholders Society of
5、Motor Manufacturers and Traders Ltd. Washer Manufacturers, Association of Great Britain The following bodies also participated in the preparation of the standard, through subcommittees and panels: British Stainless Steel Association British Turned-parts Manufacturers Association Galvanizers Associat
6、ion Institute of Metal Finishing Metal Finishing Association National Centre of Tribology Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 05:20:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20898-7:1995 BSI 07-1999i Contents Page
7、Committees responsibleInside front cover National forewordii Foreword2 1Scope3 2Normative reference3 3Torsional test3 4Minimum breaking torques4 5Evaluation of the torque test4 Annex A (informative) Explanatory note5 Annex ZA (normative) Normative references to international publications with their
8、relevant European publications5 Figure 1 Example of a device for the torsional test3 Table 1 Strength ratio X4 Table 2 Minimum breaking torques4 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 05:20:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20898-
9、7:1995 ii BSI 07-1999 National foreword This British Standard has been prepared by Technical Committee GME/9 and is the English language version of EN 20898-7:1995 Mechanical properties of fasteners Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm
10、published by the European Committee for Standardization (CEN). It is identical with ISO 898-7:1992, published by the International Organization for Standardization (ISO). EN 20898-7:1995 was produced as a result of international discussions in which the United Kingdom took an active part. A British
11、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. Cross-reference Publication referred toCorrespondin
12、g British Standard ISO 898-1:1988BS EN 20898 Mechanical properties of fasteners Part 1:1992 Specification for bolts, screws and studs Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover.
13、 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. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 05:20:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME E
14、UROPENNE EUROPISCHE NORM EN 20898-7 January 1995 ICS 21.060.10 Descriptors: Fasteners, breaking torque, bolts, specification, mechanical properties, testing, torsion testing English version Mechanical properties of fasteners Part 7: Torsional test and minimum torques for bolts and screws with nomina
15、l diameters 1 mm to 10 mm (ISO 898-7:1992) Caractristiques mcaniques des lments de fixation Partie 7: Essai de torsion et couples minimaux de rupture des vis de diamtre nominal de filetage de 1 mm 10 mm (ISO 898-7:1992) Mechanische Eigenschaften von Verbindungselementen Teil 7: Torsionsversuch und M
16、indest-Bruchdrehmomente fr Schrauben mit Nenndurchmessern 1 mm bis 10 mm (ISO 898-7:1992) This European Standard was approved by CEN on 1995-01-04. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
17、 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 official versions (English, French, German). A versio
18、n 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, Belgium, Denmark, Finland, France, Germany, Greec
19、e, 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 Stassart 36, B-1050 Brussels 1995 Copyright reser
20、ved to CEN members Ref. No. EN 20898-7:1995 E Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 05:20:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 20898-7:1995 BSI 07-1999 2 Foreword This European Standard has been taken over by the Technical Committee CEN/TC 185, Threaded and non-threaded
21、mechanical fasteners and accessories, from the work of ISO/TC 2, Fasteners, of the International Organization for Standardization (ISO). 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 1995,
22、and conflicting national standards shall be withdrawn at the latest by July 1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg
23、, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. NOTENormative references to international publications are listed in Annex ZA (normative). Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 05:20:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 20898-7:1995 BSI 07-19
24、993 1 Scope This part of ISO 898 specifies a torsional test for the determination of the breaking torque of bolts and screws with nominal diameters 1 mm to 10 mm with property classes 8.8 to 12.9 in accordance with ISO 898-1. The test applies to bolts and screws with thread less than M3 for which no
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BS-EN-20898-7-1995 ISO-898-7-1992 BS EN 20898 1995 ISO 898 1992
链接地址:https://www.31doc.com/p-3740759.html