作者:标准资料网 时间:2024-05-17 22:49:39   浏览:8732   来源:标准资料网

【英文标准名称】:StandardGuideforCalibrationRequirementsforElementalAnalysisofPetroleumProductsandLubricants
【原文标准名称】:石油产品和润滑剂元素分析的校准要求的标准指南
【标准号】:ASTMD7578-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D02.03
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:atomicabsorptionspectrometry;balances;calibration;calibrationstandard;checkstandard;electrometricmethods;ICP-AESmethods;lubricants;petroleumproducts;photometricmethods;referencematerial;temperaturemeasuringdevices;timers;verificati
【摘要】:Crudeoil,petroleum,petroleumproducts,additives,biofuels,andlubricantsareroutinelyanalyzedfortheirelementalcontentsuchaschlorine,nitrogen,hydrogen,phosphorus,sulfur,andvariousmetalsusingavarietyofanalyticaltechniques.Someofthesemethodsrequirelittletonomethodcalibration;someothersrequireonlysimpleonestepcalibration;whileothersrequireelaboratecalibrationroutinebeforetheproductisanalyzedforitselementalcontent.Fairlyoftenitcanbeshownthattheroundrobinresultsbyaco-operatorareallbiasedwithrespecttothosefromotherlaboratories.Presumably,thefailuretofollowgoodlaboratorypracticesandinstructionsinthetestmethodscanbeacausalfactorofsucherrors.Afurtherconsequenceisanunnecessarilylargereproducibilityestimateorthedatabeingdroppedfromthestudyasanoutlier.Anothercauseofsuchdiscrepanciescouldbedifferentorinadequatecalibrationpracticeusedinthelaboratory.Mosttestmethodsspelloutthecalibrationrequirementsbutoftendonotquotethefrequencyrequiredlettingthelaboratoriesusegoodlaboratorypracticesforthistask.Thus,uniformpracticeforinstrumentcalibrationwouldbebeneficialinstandardizingthetestproceduresandobtainingconsistentresultsacrossthelaboratories.CommitteeD02hasalreadyissuedstandardpracticesforuniformsamplepreparation(D7455),standardoperatingproceduresforICP-AES(D7260)andXRF(D7343)aswellasstandardqualityassuranceprotocol(D6792).Thisguideshouldbeconsideredasacontinuingeffortonbehalfofthissubcommitteetoachievestandardizedpracticesinallpartsofananalyticalsequence.1.1Thisguidecoversdifferentwaysbywhichthetestmethodsusedforelementalanalysisofpetroleumproductandlubricantsamplesarecalibratedbeforethesampleanalysis.1.2Uniformpracticefortestmethodcalibrationisbeneficialinstandardizingtheprocedures,andobtainingconsistentresultsacrossdifferentlaboratories.1.3Thisguideincludesonlythebasicstepsforgenerallyencounteredinstrumenttypes.Anythingoutoftheordinarymayrequirespecialprocedures.Seeindividualtestmethodsforinstructionstohandlesuchsituations.1.4Thisguideisnotasubstituteforathoroughunderstandingoftheactualtestmethodtobeused,caveatsitcontains,andadditionalinstrumentpreparationthatmayberequired.1.5Theusershouldnotexpandthescopeofthetestmethodstomaterialsorconcentrationsoutsidethescopeofthetestmethodsbeingused.1.6Thisguideshouldalsobeapplicabletosamplepreparationofnon-petroleumbasedbio-fuelsforelementalanalysis.WorkisunderwayontheseaspectsinSubcommitteeD02.03.Asmoreinformationbecomesavailable,itwillbeaddedtothisstandard.1.7ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:12P.;A4
【正文语种】:英语