BS 6043-3 6-2000 Methods of sampling and test for carbonaceous materials used in aluminium manufacture - Electrodes - Determination of electrical resistivity of cathode blocks and .pdf

上传人:cleanass300 文档编号:545605 上传时间:2018-12-09 格式:PDF 页数:12 大小:174.76KB
下载 相关 举报
BS 6043-3 6-2000 Methods of sampling and test for carbonaceous materials used in aluminium manufacture - Electrodes - Determination of electrical resistivity of cathode blocks and .pdf_第1页
第1页 / 共12页
BS 6043-3 6-2000 Methods of sampling and test for carbonaceous materials used in aluminium manufacture - Electrodes - Determination of electrical resistivity of cathode blocks and .pdf_第2页
第2页 / 共12页
BS 6043-3 6-2000 Methods of sampling and test for carbonaceous materials used in aluminium manufacture - Electrodes - Determination of electrical resistivity of cathode blocks and .pdf_第3页
第3页 / 共12页
BS 6043-3 6-2000 Methods of sampling and test for carbonaceous materials used in aluminium manufacture - Electrodes - Determination of electrical resistivity of cathode blocks and .pdf_第4页
第4页 / 共12页
BS 6043-3 6-2000 Methods of sampling and test for carbonaceous materials used in aluminium manufacture - Electrodes - Determination of electrical resistivity of cathode blocks and .pdf_第5页
第5页 / 共12页
亲,该文档总共12页,到这儿已超出免费预览范围,如果喜欢就下载吧!
资源描述

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS 6043-3.6:2000 ISO 1171

2、3:2000 ICS 71.100.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Methods of sampling and test for carbonaceous materials used in aluminium manufacture Part 3: Electrodes Section 3.6: Determination of electrical resistivity of cathode blocks and prebaked anodes at ambient t

3、emperatureThis British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 October 2000 BSI 10-2000 ISBN 0 580 36585 9 BS 6043-3.6:2000 Amendments issued since

4、 publication Amd. No. Date Comments National foreword This British Standard reproduces verbatim ISO 11713:2000 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee CII/24, Raw materials for the aluminium industry, which has the r

5、esponsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK.

6、 A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Inter

7、national Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a

8、British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 4, an inside back cover and a back cover. The BSI copyright notice displayed in th

9、is document indicates when the document was last issued.INTERNATIONAL STANDARD ISO 11713 Firstedition 2000-05-15 Referencenumber ISO11713:2000(E) Carbonaceousmaterialsusedinthe productionofaluminiumCathodeblocks andbakedanodesDeterminationof electricalresistivityatambienttemperature Produits carbons

10、 utiliss pour la production de laluminium Blocs cathodiques et anodes cuites Dtermination de la rsistivit lectrique la temprature ambiante BS 6043-3.6:2000ii BS 6043-3.6:2000 iii Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbod

11、ies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcom- mittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhasthe righttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliai- sonwithISO,als

12、otakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission (IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculat

13、edtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubjectof patentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrigh

14、ts. InternationalStandardISO11713waspreparedbyTechnicalCommitteeISO/TC47, Chemistry, Subcommittee SC7, Aluminium oxide, cryolite, aluminium fluoride, sodium fluoride, carbonaceous products for the aluminium in- dustry. BS 6043-3.6:2000BS 6043-3.6:2000 1 Carbonaceousmaterialsusedintheproductionofalum

15、inium CathodeblocksandbakedanodesDeterminationofelectrical resistivityatambienttemperature 1Scope ThisInternationalStandardspecifiesamethodforthedeterminationoftheelectricalresistivityofcathodeblocksand bakedanodesusedintheproductionofaluminium,usingsamplesatambienttemperature. 2Normativereferences

16、Thefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsof thisInternationalStandard.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthese publicationsdonotapply.However,partiestoagreementsbasedonthisInternationalStandardareencouragedto invest

17、igatethepossibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.For undatedreferences,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIEC maintainregistersofcurrentlyvalidInternationalStandards. ISO8007-1:1999, Carbonaceous materials used in the product

18、ion of aluminium Sampling plans and sampling from individual units Part 1: Cathode blocks. ISO8007-2:1999, Carbonaceous materials used in the production of aluminium Sampling plans and sampling from individual units Part 2: Prebaked anodes. 3Principle Afixed,constantdirectcurrentispassedthroughasamp

19、leofgivencross-section.Thevoltagedropbetweensen- sorsismeasuredandtheelectricalresistivityiscalculated. 4 Apparatus 4.1Drillingmachine,equippedwithadiamond-tippeddrill. 4.2Cutter,withadiamond-coateddisk. 4.3Slidecalliper,accurateto . 4.4Ammeter,accurateto . 4.5Potentiometer,ordigitalvoltmeter,classo

20、faccuracyIEC . 4.6Sampleclampingdevice,equippedwithacurrentsupplyandvoltagesensorswhichmaybepointsorblades witharadiusofcurvaturenotlessthan .Forbladesthesensorsshallbeperpendiculartotheaxisofthe sample. 4.7Oven,capableofbeingmaintainedat . 0,5% 0,5% 0,5% 200 m (110 5) C BS 6043-3.6:20002 4.8Apparat

21、usforthedeterminationofelectricalresistivity,(seeFigure1)inwhichthecontactsurfacebe- tweenthecurrentsupplyandthesamplehasaratioof where isthediameterofthecurrentsupplycontactor; isthediameterorwidthofthesample; and thedistanceofthevoltagesensorsfromtheedgeofthesampleisgreaterthan ,andatleast ; thedi

22、stancebetweenthevoltagesensorsisgreaterthan ,andatleast ; thecontactforceofthecontactorofthecurrentsupplyisnotlessthan ; thecontactforceofthevoltagesensorsonthespecimenisnotlessthan . 5Sampling SamplethecathodeblocksandbakedanodesinaccordancewithISO8007-1andISO8007-2. Key 1Testspecimen 2 Currentsupp

23、lycontactor 3 Voltagesensors Figure1Principleforresistivitymeasurements d D 2 3 d D 0,5D 30mm 0,8D 40mm 50N 0,5N F=Forceof50N BS 6043-3.6:2000 3 6Procedure 6.1Preparationofspecimens Notethedirectionofsampling(seeISO8007-2:1999)andtaketestsamplesofcylindricalorcuboidshapewiththe followingminimumdimen

24、sions.Alldimensionsshallbegreaterthanorequaltothreetimesthemaximumparticle sizeofthedryaggregate: diameterofacylindricalsample: minimum; or squarecross-section: minimum; lengthofthesample: minimum; variationofthecross-sectioninthemeasuringzone: max. Drythesampleintheoven(4.7)at foratleast ,thenleave

25、tocool. 6.2Determination Cleanthecurrentcontactorandthevoltagesensorstoensureoptimumelectricalcontact. Determinethemeandiameterormeansideofthespecimenwiththeslidecalliper(4.3)inthevicinityofthevoltage sensorsontwoperpendiculardiametersinthecaseofacylinderandonthefoursidesincaseofacuboid. Determineth

26、edistance,betweenthepointsofthevoltagesensorstowithin . Placethetestspecimenbetweenthecurrentcontactorsandapplyforceof soastoensureoptimumdistribution ofcurrent. Adjustthedirectcurrentsoastoobtainacurrentdensitywhichisnotgreaterthan . Putthevoltagesensorsintoplace. Measurethecurrentanddifferenceinvo

27、ltageonthefourradiiofthecylinderoronthefoursidesofthecuboidby rotatingthetestspecimen . Ensurethatthetimeduringwhichthecurrentpassesthroughthetestissufficientlyshorttopreventanydetectable changeinresistance. 7Calculation Theresistivityofthespecimen,expressedinmicro-ohmmetres,isgivenbytheequation whe

28、re isthedifferenceinvoltage,involts,overlength; istheareaofthecross-section,insquarecentimetres,ofthetestspecimen; isthecurrentintensity,inamperes; isthedistance,incentimetres,betweenthevoltagesensors. 30mm 30mm 30mm 100mm 0,5% (110 5) C2h l 0,5% 50N 1A=cm 2 90 = UA Il 10 4 Ul A I l BS 6043-3.6:2000

29、4 Calculatetheresulttothenearestintegerforvaluesgreaterthan andtoonedecimalplaceforvaluesless than . 8Precision 8.1Repeatability, 8.2Reproducibility, 9Testreport Thetestreportshallcontainthefollowinginformation: a)acompleteidentificationofthetestsample; b)areferencetothisInternationalStandard,i.e.IS

30、O11713; c)theresultsandtheunitsinwhichtheyareexpressed; d)anyunusualfeaturesnotedduringthedetermination; e)anyoperationsnotincludedinthisInternationalStandardorintheInternationalStandardstowhichreferenceis made,orregardedasoptional. 20 m 20 m r r=1,2 m R R=1,5 m BS 6043-3.6:2000BS 6043-3.6:2000 ISO

31、11713:2000 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

32、| | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revisi

33、on. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the

34、 Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards

35、. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been publi

36、shed as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available w

37、hich give details on all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other

38、benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Pat

39、ents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessar

40、y details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070.

展开阅读全文
相关资源
  • BS ISO IEC 29150-2011 Information technology Security techniques Signcryption《信息技术 安全技术 签密》.pdfBS ISO IEC 29150-2011 Information technology Security techniques Signcryption《信息技术 安全技术 签密》.pdf
  • BS ISO IEC 15408-1-2009 Information technology - Security techniques - Evaluation criteria for IT Security - Introduction and general model《信息技术 安全技术 IT安全评价准则 一.pdfBS ISO IEC 15408-1-2009 Information technology - Security techniques - Evaluation criteria for IT Security - Introduction and general model《信息技术 安全技术 IT安全评价准则 一.pdf
  • BS ISO 7295-1988+A1-2014 Tyre valves for aircraft Interchangeability dimensions《飞机轮胎汽门嘴 互换性尺寸》.pdfBS ISO 7295-1988+A1-2014 Tyre valves for aircraft Interchangeability dimensions《飞机轮胎汽门嘴 互换性尺寸》.pdf
  • BS ISO 15118-1-2013 Road vehicles Vehicle to grid communication interface General information and use-case definition《道路车辆 车辆到电力通讯接口 通用信息和使用案例定义》.pdfBS ISO 15118-1-2013 Road vehicles Vehicle to grid communication interface General information and use-case definition《道路车辆 车辆到电力通讯接口 通用信息和使用案例定义》.pdf
  • BS ISO 13765-2-2004 Refractory mortars - Determination of consistency using the reciprocating flow table method《耐熔灰浆 使用往复流动表法测定一致性》.pdfBS ISO 13765-2-2004 Refractory mortars - Determination of consistency using the reciprocating flow table method《耐熔灰浆 使用往复流动表法测定一致性》.pdf
  • BS ISO 10998-2008+A1-2014 Agricultural tractors Requirements for steering《农业拖拉机 操纵要求》.pdfBS ISO 10998-2008+A1-2014 Agricultural tractors Requirements for steering《农业拖拉机 操纵要求》.pdf
  • BS Z 9-1998 Space data and information transfer systems - Advanced orbiting systems - Networks and data links - Architectural specification《空间数据和信息传输系统 高级轨道系统 网络和数据链接 结构规范》.pdfBS Z 9-1998 Space data and information transfer systems - Advanced orbiting systems - Networks and data links - Architectural specification《空间数据和信息传输系统 高级轨道系统 网络和数据链接 结构规范》.pdf
  • BS Z 7-1998 Space data and information transfer systems - ASCII encoded English《空间数据和信息传输系统 ASCII 编码英语》.pdfBS Z 7-1998 Space data and information transfer systems - ASCII encoded English《空间数据和信息传输系统 ASCII 编码英语》.pdf
  • BS Z 5-1997 Space data and information transfer systems - Standard formatted data units - Control authority procedures《航天数据和信息发送系统 标准格式数据单元 控制授权程序》.pdfBS Z 5-1997 Space data and information transfer systems - Standard formatted data units - Control authority procedures《航天数据和信息发送系统 标准格式数据单元 控制授权程序》.pdf
  • BS Z 4-1997 Space data and information transfer systems - Standard formatted data units - Structure and construction rules《航天数据和信息传输系统 标准格式数据单元 结构和构造规则》.pdfBS Z 4-1997 Space data and information transfer systems - Standard formatted data units - Structure and construction rules《航天数据和信息传输系统 标准格式数据单元 结构和构造规则》.pdf
  • 猜你喜欢
    相关搜索

    当前位置:首页 > 标准规范 > 国际标准 > BS

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1