BS-7330-3-1990 ISO-9656-1989.pdf
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1、BRITISH STANDARD BS 7330-3: 1990 ISO 9656:1989 Pliers and nippers for electronics Part 3: Methods of test Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:35:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7330-3:1990 This British Standard, having been prepar
2、ed under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 30 September 1990 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference MTE/15 Draft
3、for comment 86/74392 DC ISBN 0 580 18652 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Machine, Engineers and Hand Tools Standards Policy Committee (MTE/-) to Technical Committee MTE/15, upon which the following bodies were represent
4、ed: British Coal Corporation British Telecommunications plc Consumer Policy Committee of BSI Department of Trade and Industry Mechanical Engineering and Manufacturing Technology Division (MMT) Electricity Supply Industry in England and Wales Federation of British Engineers Tool Manufacturers Federat
5、ion of British Hand Tool Manufacturers Handle Manufacturers Association Institute of Carpenters Institute of Trading Standards Administration Institution of Production Engineers Ministry of Defence Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University,
6、London South Bank University, Fri Dec 08 11:35:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7330-3:1990 BSI 12-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Normative references1 3Wire cutting test1 4Torsion test for round nose pliers1 5Load test for f
7、lat nose and snipe nose pliers1 6Hardness test of jaws2 Annex A (informative) Bibliography4 Figure 12 Figure 23 Table 11 Table 22 Table 32 Publication(s) referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:35:11 GMT+00:00 2006, Uncont
8、rolled Copy, (c) BSI BS 7330-3:1990 ii BSI 12-1999 National foreword This Part of BS 7330, which has been prepared under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee, is identical with ISO 9656:1989 “Pliers and nippers for electronics Test methods” published by t
9、he International Organization for Standardization (ISO). The Technical Committee has reviewed the provisions of ISO 1337 to which reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. A British Standard does not purport to include all the
10、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-references International StandardCorresponding British Standard ISO 6508:1986BS 891:1989 M
11、ethods for hardness test (Rockwell method) and for verification of hardness testing machines (Rockwell method) (Technically equivalent) BS 7330 Pliers and nippers for electronics ISO 8979:1988Part 1:1990 Nomenclature (Identical) ISO 9654:1989Part 5:1990 Specification for dimensions of single-purpose
12、 cutting nippers (Identical) ISO 9657:1989Part 2:1990 Specification for general requirements (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 4, an inside back cover and a back cover. This standard has been updated (see copyright d
13、ate) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:35:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7330-3:1990 BSI 12-19991 1 Scope This I
14、nternational Standard specifies the methods of test for checking the correct functioning of pliers and nippers for electronics. The test parameters have been specified on the basis of the functional uses of the tools. 2 Normative references The following standards contain provisions which, through r
15、eference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying
16、the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 1337:1980, Wrought coppers (having minimum copper contents of 99,85 %) Chemical composition and forms of wrought products. ISO 9654:1989, Pliers and ni
17、ppers for electronics Single-purpose nippers Cutting nippers. 3 Wire cutting test 3.1 General Cutting nippers for electronics shall cut copper wire in accordance with ISO 1337. The range of diameters of the test wire are specified in ISO 9654. Upon completion of the test, the cutting edges shall sho
18、w neither visible indentation nor distortion which could affect the cutting performance of the tool. Nor shall the tool show any damage that could affect its further use. 3.2 Diagonal and oblique cutting nippers 3.2.1 Place a straight length of the minimum diameter test wire on a hard, flat, horizon
19、tal surface. The wire shall be cut using the point of the jaws with the cutting edge vertical, solely by the application of manual force on the handles. 3.2.2 Place a maximum length of 25 mm of the minimum diameter test wire at any position along the top two-thirds of the cutting edges, measured fro
20、m the point. The wire shall be cut solely by the application of manual force on the handles. 3.2.3 Diagonal and oblique cutting nippers shall cut the maximum diameter test wire at any position along the cutting edges. 3.3 All other cutting nippers for electronics Place a maximum length of 25 mm of t
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