BS-ISO-23079-2005.pdf
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1、BRITISH STANDARD BS ISO 23079:2005 Magnesium and magnesium alloys Returns Requirements, classification and acceptance ICS 77.120.20 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:21:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 23079:2005 This British Standard was published under
2、 the authority of the Standards Policy and Strategy Committee on 31 March 2005 BSI 31 March 2005 ISBN 0 580 45707 9 National foreword This British Standard reproduces verbatim ISO 23079:2005 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Techn
3、ical Committee NFE/35, Light metals and their alloys, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may
4、 be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users a
5、re responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, an
6、d keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title pages, pages ii and iii, a blank page, pages 1 to 6, an inside back cover and a back c
7、over The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:21:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 23079:2005(E
8、) INTERNATIONAL STANDARD ISO 23079 First edition 2005-03-01 Magnesium and magnesium alloys Returns Requirements, classification and acceptance Magnsium et alliages de magnsium Retours Exigences, classification et acceptation BS ISO 23079:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07
9、:21:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:97032 O5002(E) DPlcsid Fremia ihTs PDF file may ctnoian emdebt dedyfepcaes. In ccaocnadrw eith Aebods licensilop gnic,y this file mairp eb ynted iv roweb detu slahl ton ide ebtlnu deess the typefaces whice era hml era deddebicsnede to i dnanstlale
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14、ffieldun sheffieldun, na, Mon Nov 27 07:21:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried
15、 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, also take part in the work. ISO
16、 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 committees is to prepare Internation
17、al 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 possibility that some of the elem
18、ents 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 23079 was prepared by Technical Committee ISO/TC 79, Light metals and their alloys, Subcommittee SC 5, Magnesium and alloys of cast or wrought magnesium. BS
19、 ISO 23079:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:21:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:21:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTENRATIONAL TSANDADR IS:97032 O5002(E) 1 Magnesium and magnesium all
20、oys Returns Requirements, classification and acceptance 1 Scope This International Standard specifies general requirements, classification and acceptance for the different classes of magnesium returns. 2 Terms and definitions For the purposes of this document, the following terms and definitions app
21、ly. 2.1 coating any surface layer except a natural oxide layer EXAMPLES Oil, paint, metal coating. 2.2 contaminant physical or chemical component of magnesium returns which, if not properly monitored and managed, negatively affects the quality of the returns as a raw material for certain application
22、s or shows hazardous properties during certain operations 2.3 insert component consisting of metal or other materials which may be moulded into position or put into a finished product or article EXAMPLES Bearing, screw thread insert. 2.4 returns, pl raw material, destined for trade and industry, mai
23、nly consisting of magnesium and/or magnesium alloys, resulting from the collection or recovery of metal that arises at various stages of fabrication, or products after use, to be used for the production of wrought or cast alloys and for other production processes 2.5 turnings, pl returns consisting
24、of grains, chips, curls, flakes, etc. resulting from machining or other operations BS ISO 23079:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:21:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 3 Ordering information The ordering information shall define the magnesium returns and sho
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