HB 5221-1982 -60~180℃中轻负荷航空用润滑脂
时间:2024-05-15 10:53:29 来源: 标准资料网 作者:标准资料网 阅读:9967
基本信息
标准名称: | -60~180℃中轻负荷航空用润滑脂 |
中标分类: |
石油 >>
石油产品 >>
润滑脂 |
ICS分类: |
石油及相关技术 >>
润滑剂、工业油及相关产品
|
发布日期: | 1982-12-23 |
实施日期: | 1983-01-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
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: 石油 石油产品 润滑脂 石油及相关技术 润滑剂 工业油及相关产品
【英文标准名称】:StandardGuideforCalibratingaGround-WaterFlowModelApplication
【原文标准名称】:地下水流模式预测校准的标准指南
【标准号】:ASTMD5981-1996(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:calibration;groundwater;inversemethods;modeling;residual;trial-and-error;uniqueness;verification;Calibration--wateranalysisinstrumentation;Ground-watermodel;Inversemethods;Verification^
【摘要】:Mostsite-specificground-waterflowmodelsmustbecalibratedpriortouseinpredictions.Inthesecases,calibrationisanecessary,butnotsufficient,conditionwhichmustbeobtainedtohaveconfidenceinthemodel''spredictions.Often,duringcalibration,itbecomesapparentthattherearenorealisticvaluesofthehydraulicpropertiesofthesoilorrockwhichwillallowthemodeltoreproducethecalibrationtargets.Inthesecasestheconceptualmodelofthesitemayneedtoberevisitedortheconstructionofthemodelmayneedtoberevised.Inaddition,thesourceandqualityofthedatausedtoestablishthecalibrationtargetsmayneedtobereexamined.Forexample,themodelingprocesscansometimesidentifyapreviouslyundetectedsurveyingerror,whichwouldresultsininaccuratehydraulicheadtargets.Thisguideisnotmeanttobeaninflexibledescriptionoftechniquesforcalibratingaground-waterflowmodel;othertechniquesmaybeappliedasappropriateand,afterdueconsideration,someofthetechniqueshereinmaybeomitted,altered,orenhanced.1.1Thisguidecoverstechniquesthatcanbeusedtocalibrateaground-waterflowmodel.Thecalibrationofamodelistheprocessofmatchinghistoricaldata,andisusuallyaprerequisiteformakingpredictionswiththemodel.1.2Calibrationisoneofthestagesofapplyingaground-watermodelingcodetoasite-specificproblem(seeGuideD5447).Calibrationistheprocessofrefiningthemodelrepresentationofthehydrogeologicframework,hydraulicproperties,andboundaryconditionstoachieveadesireddegreeofcorrespondencebetweenthemodelsimulationsandobservationsoftheground-waterflowsystem.1.3Flowmodelsareusuallycalibratedusingeitherthemanual(trial-and-error)methodoranautomated(inverse)method.Thisguidepresentssometechniquesforcalibratingaflowmodelusingeithermethod.1.4Thisguideiswrittenforcalibratingsaturatedporousmedium(continuum)ground-waterflowmodels.However,thesetechniques,suitablymodified,couldbeappliedtoothertypesofrelatedground-watermodels,suchasmulti-phasemodels,non-continuum(karstorfractureflow)models,ormasstransportmodels.1.5GuideD5447presentsthestepstobetakeninapplyingaground-watermodelingcodetoasite-specificproblem.Calibrationisoneofthosesteps.Otherstandardshavebeenpreparedonenvironmentalmodeling,suchasGuidesD5490,D5609,D5610,D5611,D5718,andPracticeE978.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.7Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject''smanyuniqueaspects.Thewordx201C;Standardx201D;inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.
【中国标准分类号】:P12
【国际标准分类号】:13_060_10
【页数】:6P.;A4
【正文语种】:英语
【英文标准名称】:GeometricalProductSpecification(GPS)--Surfacetexture:Profilemethod--Metrologicalcharacteristicsofphasecorrectfilters
【原文标准名称】:产品几何量技术规范(GPS).表面结构:轮廓法.相位校正过滤器的计量特征
【标准号】:JISB0632-2001
【标准状态】:现行
【国别】:日本
【发布日期】:2001-01-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonMachineElements
【标准类型】:()
【标准水平】:()
【中文主题词】:表面处理;粗糙度(表面);几何面
【英文主题词】:roughness(surface);geometricsurfaces;surfacetreatment
【摘要】:この規格は,輪郭曲線測定のための位相補償フィルタの特性につい又規定する。特に,輪郭曲線に含まれる長波長成分及び短波長成分を分離する方法について規定する。備考この規格の対応国際規格を,次に示す。なお,対応の程度を表す記号は,ISO/IECGuide21に基づき,IDT(一致している),MOD(修正している),NEQ(同等でない)とする。
【中国标准分类号】:J04
【国际标准分类号】:17_040_20
【页数】:14P;A4
【正文语种】:日语