MIL-STD-989, MILITARY STANDARD: CERTIFICATION REQUIREMENTS FOR JAN SEMICONDUCTOR DEVICES (11 NOV 1991)., This standard establishes the minimum requirements for the certification of manufacturing facilities/lines (s) used in fabricating, assembling, and testing high reliability JAN semiconductors in accordance the MIL-S-19500.
【英文标准名称】:StandardPracticeforSamplePreparationofPetroleumandLubricantProductsforElementalAnalysis
【原文标准名称】:石油产品和润滑剂的元素分析用样品制备的标准实施规程
【标准号】:ASTMD7455-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:aciddecomposition;ash;bombcombustion;ED-XRF;ICP-AES;lubricants;petroleumproducts;SASH;samplepreparation;WD-XRF
【摘要】:Crudeoil,petroleum,petroleumproducts,additives,andlubricantsareroutinelyanalyzedfortheirelementalcontentsuchaschlorine,nitrogen,phosphorus,sulfur,andvariousmetalsusingavarietyofanalyticaltechniques.Someofthesetestmethodsrequirelittletonosamplepreparation;someothersrequireonlysimpledilutions;whileothersrequireelaboratesampledecompositionbeforetheproductisanalyzedforitselementalcontent.Fairlyoftenitcanbeshownthattheroundrobinresultsbyaco-operatorareallbiasedwithrespecttothosefromotherlaboratories.Presumably,thefailuretofollowgoodlaboratorypracticesandinstructionsinthetestmethodscanbeacausalfactorofsucherrors.Afurtherconsequenceisanunnecessarilylargereproducibilityestimateorthedatabeingdroppedfromthestudyasanoutlier.Uniformpracticeforsamplepreparationisbeneficialinstandardizingtheproceduresandobtainingconsistentresultsacrossthelaboratories.1.1Thispracticecoversdifferentmeansbywhichpetroleumproductandlubricantsamplesmaybepreparedbeforethemeasurementoftheirelementalcontentusingdifferentanalyticaltechniques.1.2Thispracticeincludesonlythebasicstepsforgenerallyencounteredsampletypes.Anythingoutoftheordinarymayrequirespecialprocedures.Seeindividualtestmethodsforinstructionstohandlesuchsituations.1.3Thispracticeisnotasubstituteforathoroughunderstandingoftheactualtestmethodtobeused,caveatsthetestmethodcontains,andadditionalsamplepreparationthatmayberequired.1.4Theusershouldnotexpandthescopeofthetestmethodstomaterialsorconcentrationsoutsidethescopeofthetestmethodsbeingusedwithoutthoroughlyunderstandingtheimplicationsofsuchdeviations.1.5Thispracticemayalsobeapplicabletosamplepreparationofnon-petroleumbasedbio-fuelsforelementalanalysis.Currently,workisongoinginASTMSubcommitteeD02.03;asinformationbecomesavailable,itwillbeaddedtothisstandard.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_100
【页数】:8P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 气相防锈纸试验方法 |
| 中标分类： |
综合 >>
基础标准 >>
材料防护 |
| 替代情况： | 被JB/T 4051.2-1999代替 |
| 发布日期： | |
| 实施日期： | 1994-06-01 |
| 首发日期： | |
| 作废日期： | 2000-01-01 |
| 出版日期： | |
| 页数： | 4页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 综合 基础标准 材料防护