ISO-5749-2004.pdf
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1、 Reference number ISO 5749:2004(E) ISO 2004 INTERNATIONAL STANDARD ISO 5749 Third edition 2004-09-15 Pliers and nippers Diagonal cutting nippers Dimensions and test values Pinces et tenailles Pinces coupantes diagonales Dimensions et valeurs dessai ISO 5749:2004(E) PDF disclaimer This PDF file may c
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6、ht office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2004 All rights reserved ISO 5749:2004(E) ISO 2004 All rights reserved iii Foreword ISO (the International Organization for Standardization
7、) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be repr
8、esented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards ar
9、e drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internation
10、al Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 5749 was prep
11、ared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 10, Assembly tools for screws and nuts, pliers and nippers. This third edition cancels and replaces the second edition (ISO 5749:1988) which has been technically revised. INTERNATIONAL STANDARD ISO 5749:2004(E) ISO 2004 All rights r
12、eserved 1 Pliers and nippers Diagonal cutting nippers Dimensions and test values 1 Scope This International Standard specifies the principal dimensions of diagonal cutting nippers and the test values for the nippers in order to verify their aptitude to function in conformity with ISO 5744. General t
13、echnical requirements are given in ISO 5743. The diagonal cutting nippers illustrated in this International Standard are examples only and are not intended to affect the manufacturers design. 2 Normative references The following referenced documents are indispensable for the application of this docu
14、ment. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5743, Pliers and nippers General technical requirements ISO 5744:2004, Pliers and nippers Methods of test 3 Dimensions and test va
15、lues 3.1 Diagonal cutting nippers for hard wire The main dimensions for cutting nippers for hard wire are shown in Figure 1 and given in Table 1. The cutting nippers shall be tested in accordance with ISO 5744. After the load test, the permanent set s shall not exceed the value given in Table 2. If
16、distance l1 is not suitable for the load test, the formula given in ISO 5744:2004, 4.2 shall be used. The cutting force, F1, and the diameter, d, of the test wire shall not exceed the values given in Table 2. Nippers having a lever ratio differing from the values given in Table 2 shall be checked fo
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