BS-ISO-7900-2006.pdf
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1、BRITISH STANDARD BS ISO 7900:2006 Steel wire and wire products for fences Zinc- and zinc-alloy-coated steel barbed wire ICS 77.140.65; 91.090 ? Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 10:07:44 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS ISO 7900:2006 T
2、his British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2007 BSI 2007 ISBN 978 0 580 50171 5 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 7900:2006. The UK participation in its preparatio
3、n was entrusted to Technical Committee ISE/26, Steel wire. A list of organizations represented on ISE/26 can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance
4、 with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 10:07:44 GMT+00:00 2007, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 7900
5、Second edition 2006-06-01 Reference number ISO 7900:2006(E) Steel wire and wire products for fences Zinc- and zinc-alloy-coated steel barbed wire Fils et produits trfils en acier pour cltures Ronces en acier revtu de zinc ou dalliages de zinc BS ISO 7900:2006 Licensed Copy: London South Bank Univers
6、ity, London South Bank University, Thu Mar 01 10:07:44 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ii Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 10:07:44 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iii Contents Page 1Scope 1 2Normative references 1 3Informati
7、on to be supplied by the purchaser 1 4Manufacture . 2 5Requirements . 3 6Sampling and testing 3 7Inspection and documentation . 4 8Methods of test 4 9Packaging . 4 Annex A (informative) Typical barbed-wire formation (other types of barbed wire may be available) . 5 BS ISO 7900:2006 Licensed Copy: Lo
8、ndon South Bank University, London South Bank University, Thu Mar 01 10:07:44 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internationa
9、l 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 represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO,
10、also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical commi
11、ttees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the po
12、ssibility 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 7900 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 17, Steel wire rod and wire products. This second
13、edition cancels and replaces the first edition (ISO 7900:1988), which has been technically revised. BS ISO 7900:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 10:07:44 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 1 Steel wire and wire products for fences Zin
14、c- and zinc-alloy-coated steel barbed wire 1Scope This International Standard specifies the characteristics of zinc- and zinc-alloy-coated steel barbed wire, with conventional and reverse twist consisting of two stranded line wires, around which the barbs are tightly wound, a twist being imparted be
15、tween the barbs to restrict their movement. The barbed-wire entanglement has a single line wire, around which the barbs are wound. 2Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. Fo
16、r undated references, the latest edition of the referenced document (including any amendments) applies. ISO 404, Steel and steel products General technical delivery requirements ISO 6892, Metallic materials Tensile testing at ambient temperature ISO 7989-1, Steel wire and wire products Non-ferrous m
17、etallic coatings on steel wire Part 1: General principles ISO 7989-2, Steel wire and wire products Non-ferrous metallic coatings on steel wire Part 2: Zinc or zinc- alloy coating ISO 8458-1, Steel wire for mechanical springs Part 1: General requirements ISO 10474, Steel and steel products Inspection
18、 documents 3Information to be supplied by the purchaser The following information shall be supplied by the purchaser at the time of inquiry or order: a)the number of this International Standard; b)quantity; c)type of barbed wire; d)coating type; e)barb spacing; f)length on reels; g)in the case of ba
19、rbed-wire entanglement (BWE), the type of finish; h)whether the uniformity of coating is to be measured; i)inspection documentation requirements; j)agreed quality characteristics for testing (see Clause 6). BS ISO 7900:2006 Licensed Copy: London South Bank University, London South Bank University, T
20、hu Mar 01 10:07:44 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 2 4Manufacture 4.1Base metal The base metal of the barbed wire shall be of a good-commercial-quality steel wire, having the properties specified in Table 1. 4.2Fabrication 4.2.1General The wire shall be zinc coated or zinc-alloy coated in
21、 accordance with ISO 7989-2, before fabrication into barbed wire, except for barbed-wire entanglement, which may be made from bright wire and suitably finished (other than zinc coated) in its final state. 4.2.2Conventional barbed wire (C) The conventional barbed wire shall be formed from two line wi
22、res complying with 4.1 and Table 1, twisted together with an approximate lay of . Typical barb spacing is , or (or other spacing by agreement). Barb spacing shall be measured in accordance with 8.4. The barbs shall be tightly wrapped round the two stranded line wires by a method that prevents slippi
23、ng, to expose the four barbs at an angle of approximately apart, in a plane at right angles to the axis of the line wire (e.g. see Figure A.1). The barbs shall project a distance of from the centerline of the wire, and the barb ends shall be cut at an angle not greater than to the axis of the barb.
24、4.2.3Reverse-twist type (RT) The barbed wire shall be formed from two line wires complying with 4.1 and Table 1, twisted together with an approximate lay of . Typical barb spacing is , or (or other spacing by agreement). Barb spacing shall be measured in accordance with 8.4. The barbs shall be forme
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