IEEE 1003.9-1992 信息技术.POSIXFORTRAN77.语言接口.第一部分:系统应用程序接口(API)的联编
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【英文标准名称】:Informationtechnology;POSIXFORTRAN77;languageinterfaces;part1:bindingforsystemApplicationProgramInterface(API)
【原文标准名称】:信息技术.POSIXFORTRAN77.语言接口.第一部分:系统应用程序接口(API)的联编
【标准号】:IEEE1003.9-1992
【标准状态】:作废
【国别】:美国
【发布日期】:1992
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:信息处理;操作系统;应用软件;数据处理;接口;FORTRAN语言;程序设计语言;便携式操作系统接口
【英文主题词】:fortran;interfaces(dataprocessing);programminglanguages;applicationsoftware;operatingsystems;portableoperatingsysteminterfaces;informationprocessing;dataprocessing
【摘要】:
【中国标准分类号】:L74
【国际标准分类号】:35_080
【页数】:181P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforResistancetoEnvironmentalDegradationofElectricalPressureConnectionsInvolvingAluminumandIntendedforResidentialApplications
【原文标准名称】:住宅设备用铝制电压连接件的阻止环境退化的标准试验方法
【标准号】:ASTMB812-1996(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】:B02.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aluminum;aluminumconnections;contacts;environmentaltesting;humiditytesting;mixedenvironmentaltesting;mixedstresstesting;neutralbar;pressureconnection;stresstesting;thermalcycling;twist-onconnector;Degradation--electricalcontactma
【摘要】:Theprincipalunderlyingthetestisthesensitivityoftheelectricalcontactinterfacetotemperatureandhumiditycyclingthatelectricalpressureconnectionsystemsexperienceasaresultofusageandinstallationenvironment.Thetemperaturecyclingmaycausemicromotionatthematingelectricalcontactsurfaceswhichcanexposefreshmetaltothelocalambientatmosphere.Thehumidityexposureisknowntofacilitatecorrosiononfreshlyexposedmetalsurfaces.Thus,forthoseconnectionsystemsthatdonotmaintainstablemetal-to-metalcontactsurfacesundertheconditionofthermalcyclingandhumidityexposure,repeatedsequencesoftheseexposuresleadtodegradationofthecontactingsurfaceindicatedbypotentialdropincrease.Thetestisofshortdurationrelativetotheexpectedlifeofconnectionsinresidentialusage.Stabilityofconnectionresistanceimpliesresistancetodeteriorationduetoenvironmentalconditionsencounteredinresidentialservice.Increasingconnectionresistanceasaresultofthetestexposureindicatesdeteriorationofelectricalcontactinterfaces.Assuranceoflongtermreliabilityandsafetyofconnectiontypesthatdeterioraterequiresfurtherevaluationforspecificspecifiedenvironmentsandapplications.Use8212;Itisrecommendedthatthistestmethodbeusedinoneoftwoways.First,itmaybeusedtoevaluateandreporttheperformanceofaparticularconnectionsystem.Forsuchuse,itisappropriatetoreporttheresultsinasummary(ortabular)formatsuchasshowninSection18,togetherwiththestatementx201C;Theresultsshowninthesummary(ortable)wereobtainedfor(insertdescriptionofconnection)whentestedinaccordancewithTestMethodB812.Second,itmaybeusedasthebasisforspecificationofacceptabilityofproduct.Forthisuse,theminimumtesttimeandthemaximumallowableincreaseinpotentialdropmustbeestablishedbythespecifier.Specificationofconnectionsystemsinaccordancewiththisuseofthestandardtestmethodwouldbeoftheform:x201C;Themaximumpotentialdropincreaseforanyconnection,whentestedinaccordancewithTestMethodB812foraperiodofweeks,shallbemVrelativetothereferenceconnections.x201D;Connectionsystemsthataremostresistanttothermal-cycle/humiditydeterioration,withinthelimitationsofdeterminationbythistestmethod,shownoincreaseinpotentialdrop,relativetothereferenceconnections,whentestedforindefinitetime.Connectionsthatarelessresistanttothermal-cycle/humidityconditionsappliedbythistestwilldemonstrateprogressiveincreasesinpotentialdropwithincreasingtimeontest.Thus,thefollowingexamplesofspecificationsareintheorderofmoststringent(No.1)toleaststringent(No.3).
Duration,weeks
MaximumPotentialDropIncrease,mV
1.
52
0
2.
16
0.2
3.
4
1.0
基本信息
| 标准名称： | 密封圈 |
| 中标分类： |
|
| 替代情况： | HB 956-1981 |
| 发布日期： | 2000-09-21 |
| 实施日期： | 2001-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
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