【英文标准名称】:StandardGuideforRecoveryofAqueousCyanidesbyExtractionfromMineRockandSoilAfterRemediationofProcessReleases
【原文标准名称】:工艺过程修整发布后从矿山岩和土壤中提取氰化物的回收标准指南
【标准号】:ASTMD7572-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D19.06
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:aqueouscyanide;extraction;minerock;soil;processrelease
【摘要】:Thispracticeisintendedasameansforobtaininganextractfromminerockandsoilsamplestoverifytheeffectivenessofcyanidereleaseremediation.Cyanideisanalyzedinminerockandsoilextractsafterremediationofprocessspills,todemonstrateregulatorycompliance;however,impropersamplecollectionandextractioncanresultinsignificantpositiveornegativebias,potentiallyresultinginunnecessarypermitviolationsorundetectedcyanidereleasesintotheenvironment.Thispracticeisdesignedtomobilizeaqueouscyanidespresentinthesolids,sothattheresultingextractcanbeusedtoassessleachatethatcouldpotentiallybeproducedfromremediatedminerockorsoilinthefield.Thispracticeisnotintendedtosimulateactualsiteleachingconditions.Thispracticeproducesextractsthatareamenabletothedeterminationofminor(trace)constituents.Whenminorconstituentsarebeingdetermined,itisespeciallyimportantthatprecautionsbetakeninsamplepreservation,storageandhandlingtoavoidpossiblecontaminationoftheextracts.Thispracticeusesacomparativetestmethodandisintendedforuseasaroutinemethodformonitoringremediatedminerockandsoilsafterprocessreleasesandremediation.Itisassumedthatallwhousethispracticewillbetrainedanalystscapableofperformingitskillfullyandsafely.ItisexpectedthatworkwillbeperformedinaproperlyequippedlaboratoryapplyingappropriatequalitycontrolpracticessuchasthosedescribedinGuideD3856.1.1Thisguideisapplicableforthecollection,extractionandpreservationofextractsfromminerockandsoilsamplesafterremediationofcyanideprocessreleasesfortheanalysisofcyanideintheextracts.Responsibilitiesoffieldsamplingpersonnelandthelaboratoryareindicated.1.2Thesampling,preservationandextractionproceduresdescribedinthispracticearerecommendedfortheanalysisoftotalcyanide,availablecyanide,weakaciddissociablecyanide,andfreecyanidebyTestMethodsD2036,D4282,D4374,D6888,D6994,D7237,andD7284.Theinformationsuppliedinthispracticecanalsobeappliedtootheranalyticalmethodsforcyanide,forexample,USEPAMethod335.4.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:73_080
【页数】:7P.;A4
【正文语种】: