ISO 8007-1-1999 Carbonaceous materials used in the production of aluminium - Sampling plans and sampling from individual units - Part 1 Cathode blocks《铝生产用碳素材料 .pdf

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1、A Referencenumbe r ISO80071:1999 (E) INTERNATIONAL STANDARD ISO 80071 Firstedition 19990801 Carbonaceousmaterialsusedinthe productionofaluminiumSamplingplans andsamplingfromindividualunits Part1: Cathodeblocks ProduitscarbonsutilisspourlaproductiondelaluminiumPlans dchantillonnageetchantillonnagepou

2、runitsindividuelles Partie1:BlocscathodiquesISO80071:1999(E) ISO1999 Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproduced orutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingand microfilm,withoutpermissioninwritingfromthepublisher. InternationalOr

3、ganizationforStandardization Casepostale56 CH1211Genve20 Switzerland Internet isoiso.ch PrintedinSwitzerland ii Contents 1Scope 1 2Normativereferences . .1 3Definitions 1 4Apparatus .1 5Takingtestsamplesfromindividualcathodes. 1 5.1Procedure 1 5.2Cathodeblo cksproducedwithoutaco llectorbarslot .2 5.

4、3Cathodeblo cksproducedwithacoll ectorbarslot .2 5.4Dimensionsoftestsamples . .3 6Samplingreport .3ISO ISO80071:1999(E) iii Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormally

5、carriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnongovernmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternatio

6、nalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternational

7、Standardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. InternationalStandardISO80071waspreparedbyTechnicalCommittee,ISO/TC47, Chemistry,Subcommittee SC7,Aluminiumoxide,cryolite,aluminiumfluoride,sodiumfluoride,carbonaceousproductsforthealuminium industry. ISO8007consistsofthefollowingpar

8、ts,underthegeneraltitle, Carbonaceousmaterialsusedintheproductionof aluminiumSamplingplansandsamplingfromindividualunits: Part1:Cathodeblocks Part2:Prebakedanodes Part3,whichisinpreparation,willgiveproceduresforsamplingsidewallblocks.ISO80071:1999(E) ISO iv Introduction Detailsofthesamplingofshapedr

9、efractoryproductsingeneralaregiveninISO5022,whichgivesthestatistical basisforsamplingplansforacceptancetestingofaconsignmentorlot. Cathodeblocksusedintheproductionofaluminiumhavespecificrequirementsforsamplingand,whilethe statisticalbasisforsamplinggiveninISO5022applies,furtherormodifiedrequirements

10、alsoapply.INTERNATIONALSTANDARD ISO ISO80071:1999(E) 1 Carbonaceousmaterialsusedintheproductionofaluminium Samplingplansandsamplingfromindividualunits Part1: Cathodeblocks 1Scope ThispartofISO8007specifiesproceduresforsamplingconsignmentsofcathodeblocksusedintheproductionof aluminiumandfortakingtest

11、samplesfromindividualblocks. 2Normative references Thefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthis partofISO8007.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublicationsdonot apply.However,partiestoagreementsbasedonthis

12、partofISO8007areencouragedtoinvestigatethepossibilityof applyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.Forundatedreferences,thelatest editionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintainregistersofcurrentlyvalid InternationalStandards. ISO5022:1979, Shapedref

13、ractoryproductsSamplingandacceptancetesting. ISO6206:1979, ChemicalproductsforindustrialuseSamplingVocabulary. 3Definitions ForthepurposesofthispartofISO8007,thedefinitionsgiveninISO5022andISO6206apply. 4Apparatus Usesuitablecoredrillingequipmentwithcuttingedgespreferablycoatedwithdiamondoranotherex

14、tremelyhard material. 5 Takingtestsamplesfromindividualcathodes 5.1Procedure Cathodeblocksshallbesampled,bycoredr illingorsawing,inaccordancewiththeprovisionsofISO5022andwith theadditionalrequirementsgivenin5.2,5.3and5.4ofthispartofISO8007.Examplesofsamplelocationsaregivenin Figures1and2. Cathodeblo

15、cksproducedwithacollectorbarslotshallbeconsideredseparatelyfromthoseproducedwithoutaslot whendeterminingthelocationsfromwhichtestsample(s)willbetaken. Thelocationsfromwhichtestsampleswillbetakenshallbeagreedbetweenthesellerandbuyerinaccordancewith 5.2or5.3.ISO80071:1999(E) ISO 2 5.2 Cathodeblockspro

16、ducedwit houtacollectorbarslot Thepositionsfromwhichtestsamplescanbedrilledfromcathodeblocksproducedwithoutacollectorbarslotare restrictedbecause,aftersampling,thecathodeblockwillbeusedaspartofanelectrolysiscell.Testsamplesshall thereforebetakenfromthepartofthecathodeblockthatwillbemachinedoutasthes

17、lot.Samplingshallnotweaken thecathodeblockorincreasethelikelihoodofprematurefailure.Extremecareshallbeexercisedwhentakingvertically drilledsamples.ExamplesofpositionsfromwhichtestsamplescanbetakenareshowninFigure1. Figure1Examplesofsamplingpointlocationsforcathodeblockswithoutaslot 5.3 Cathodeblocks

18、produced withacollectorbarslot Consignmentsmaybedeliveredwithaproportionofthecathodeblocksmanufacturedtoalengththatisgreaterthan thatwhichwillultimatelyberequiredforuse.ThisisindicatedinFigure2asthe“extralength“.Thesellerandbuyer shallagreeontheproportionofextralengthcathodeblocksinaconsignment. NOT

19、E Itisstronglyrecommendedthatsuchanagreementtosupplyaproportionwithextralengthismade.Samplingfrom theextralengthpartofthecathodeblockispreferredbecausethepartofthecathodeblockthathasbeendrilledwillultima tely bemachinedawaywhentheblockiscuttofinallength. Whensamplingextralengthcathodeblocks,testsamp

20、lesshallbetakenhorizontallyandvertically,spreadingthe samplinglocationsevenlyovertheentirecrosssectionoftheblock. Whennoextralengthcathodeblocksareavailable,testsamplesshallbetakenhorizontallyandvertically,butthe optionsaremorerestricted. Samplingshallnotweaken,contaminateorcausethedestructionoftheb

21、lock.Extremecareshallbeexercisedwhen takingverticallydrilledsamples. Theavailabilityornonavailabilityofextralengthcathodeblo cksforsamplingpurposesshallbereportedunderiteme) ofthesamplingreport. ExamplesofpositionsfromwhichtestsamplescanbetakenareshowninFigure2.ISO ISO80071:1999(E) 3 Key 1 Extraleng

22、th Figure2Examplesofsamplingpointlocationsforcathodeblockswithaslot 5.4 Dimensionsoftestsamples Choosethedimensionsofeachtestsampleaccordingtothetesttobecarriedout.Thesmallestdimension(usuallythe diameter)shallbeatleastthreetimesthemaximumparticlesizeofthedryaggregate. RefertotheInternationalStandar

23、dsrelatingtotheteststobecarriedouttoensurethatthetestsamplestakenfrom thecathodeblockareofsuitabledimensions.Whereastandarddoesnotspecifythedimensionsofthetestpieces, adiameterof30mmor50mmisrecommended,aswellasalengthwhichisatleast1,5timesthediameter. Thecrosssectionofthetestsamplesshallbecircular.I

24、fparallelsidedtestpiecesaretobepreparedfromthetest samples,thediametershallbesufficienttoallowthis.Reportthedimensionsofthetestsamplesunderitemg)ofthe samplingreport. 6Sampling report Thesamplingreportshallincludethefollowing: a) thenamesoftheproducerandcustomer; b) thenumberandreferencemarkingofthe

25、batch(es); c) areferencetothispartofISO8007,i.e.ISO80071; d) thedateandplaceofsampling; e) completedetailsofthesamplingplanoperated; f) theproportionandnumberofextralengthcathodeblocks,ifavailableforsampling;ISO80071:1999(E) ISO 4 g) asketchshowingthelocationsofthesamplingpointsandthedirectionofsampling(horizontallyorvertically) (examplesaregiveninFigures1and2); h) thedimensionsofthetestsamples; i) details(nameandjobtitle)oftheperson(s)carryingoutthesampling.ISO80071:1999(E) ISO ICS71.100.10 Pricebasedon4pages