BS-ISO-8371-1994.pdf
《BS-ISO-8371-1994.pdf》由会员分享,可在线阅读,更多相关《BS-ISO-8371-1994.pdf(12页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS ISO 8371:1994 Implementation of ISO 8371:1994 Iron ores Determination of decrepitation index Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 05:43:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 8371:1994 This British Standard, having been prepared under the direction
2、 of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 June 1995 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference ISE/58 Draft for comment 93/309652 DC ISBN 0 580 24411 3 Committees respo
3、nsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee ISE/58, Iron ores, upon which the following bodies were represented: British Iron and Steel Producers Association Institution of Mining and Metallurgy Coopted members Amendments issued sinc
4、e publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 05:43:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 8371:1994 BSI 12-1999i Contents Page Committees responsibleInside front cover National forewordii Forewordiii Text of ISO 83711 Licensed Copy: sheffiel
5、dun sheffieldun, na, Mon Nov 27 05:43:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 8371:1994 ii BSI 12-1999 National foreword This British Standard reproduces verbatim ISO 8371:1994 and implements it as the UK national standard. This British Standard is published under the direction of the E
6、ngineering Sector Board whose Technical Committee ISE/58 has the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and Eur
7、opean developments and promulgate them in the UK. NOTEInternational and European Standards, as well as overseas standards, are available from Customer Services, BSI, 389 Chiswick High Road, London W4 4AL. A British Standard does not purport to include all the necessary provisions of a contract. User
8、s of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the ISO title page, pages ii to iv, pages
9、 1 and 2 and a back cover. 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, Mon Nov 27 05:43:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
10、 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 05:43:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 8371:1994(E) ii BSI 12-1999 Contents Page Forewordiii Introduction1 1Scope1 2Normative references1 3Definitions1 4Principle1 5Apparatus1 6Preparation of test sample1 7Procedure1 8Expressio
11、n of results2 9Test report2 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 05:43:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 8371:1994(E) BSI 12-1999iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member
12、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 represented on that committee. International organizations, governmental
13、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. Draft International Standards adopted by the technical committees are circulated to the member
14、bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 8371 was prepared by Technical Committee ISO/TC 102, Iron ores, Subcommittee SC 3, Physical testing. Licensed Copy: sheffieldun sheffieldun,
15、na, Mon Nov 27 05:43:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 05:43:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 8371:1994(E) BSI 12-19991 Introduction The decrepitation index test is used to evaluate the behaviour of lump iro
16、n ore when it is subject to rapid heating. The specific conditions involved in this test are a) a sample having a specified size range; b) a specified sample mass; c) heating to 700 C; d) sieving to determine decrepitation index. 1 Scope This International Standard specifies a method for the determi
17、nation of the decrepitation index of lump iron ore. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject
18、to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 3081:1986, Iron o
19、res Increment sampling Manual method. ISO 3082:1987, Iron ores Increment sampling and sample preparation Mechanical method. ISO 3083:1986, Iron ores Preparation of samples Manual method. ISO 3310-1:1990, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth. ISO 3310
20、-2:1990, Test sieves Technical requirements and testing Part 2: Test sieves of perforated metal plate. ISO 11323:, Iron ores Vocabulary1). 3 Definitions For the purposes of this International Standard, the definitions given in ISO 11323 apply. 4 Principle This method evaluates the effect of rapid he
21、ating from room temperature to 700 C in 30 min on the sized test portion. This is done by measuring the mass of material passing a 6,30 mm screen after the heating cycle. 5 Apparatus 5.1 Electrically heated furnace, with heat capacity and thermal response characteristics sufficient to heat the sampl
22、e from room temperature to 700 C in 30 min. 5.2 Sample holder, made of non-scaling, heat-resistant metal capable of withstanding a temperature greater than 700 C, equipped with a thermocouple to measure the temperature of the sample. The cover shall be of the loose fitting type and shall not provide
- 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 ISO 8371 1994
链接地址:https://www.31doc.com/p-3750862.html