SJ 1473-79 ３ＣＧ１１１型ＰＮＰ硅外延平面高频小功率三极管
作者:标准资料网 时间:2024-05-27 01:48:27 浏览:8879
来源:标准资料网
基本信息
| 标准名称： | ３ＣＧ１１１型ＰＮＰ硅外延平面高频小功率三极管 |
| 英文名称： | Detail specification for silicon PNP epitaxial planar high frequency low power transistors,Type 3CG111 |
| 中标分类： |
能源、核技术 >>
能源、核技术综合 >>
技术管理 |
| 发布日期： | 1979-09-11 |
| 实施日期： | 1980-06-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 3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： 能源 核技术 能源 核技术综合 技术管理
【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
【英文标准名称】:Cableddistributionsystemsfortelevisionandsoundsignals-InterfacesforCATV/SMATVheadendsandsimilarprofessionalequipmentforDVB/MPEG-2transportstreams
【原文标准名称】:电视和声信号用电缆分布系统.数字视频广播/MPEG-2-传输电流用CATV-/SMATV端点和可比专业设备用接口
【标准号】:BSEN50083-9-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-03-15
【实施或试行日期】:1999-03-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:多媒体;电视传输;接口(数据处理);电缆分布系统;定义;电缆配线箱;电视信号;音频信号;广播信号;声音广播;电视;定义;计算机硬件;电气工程;界面;信号传输;数据信号;数字视频广播
【英文主题词】:
【摘要】:
【中国标准分类号】:M05;M60
【国际标准分类号】:33_060_40
【页数】:48P;A4
【正文语种】:英语
