GB 7335-1987 电子器件详细规范 CL21型金属化聚酯膜介质直流固定电容器 评定水平E(可供认证用)
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基本信息
| 标准名称： | 电子器件详细规范 CL21型金属化聚酯膜介质直流固定电容器 评定水平E(可供认证用) |
| 英文名称： | Detail specification for electronic components--Fixed metallized polyethylene-terephthalate film dielectric D.C capacitors type CL21--Assessment level E |
| 中标分类： |
电子元器件与信息技术 >>
电子元件 >>
电容器 |
| 替代情况： | 调整为SJ/T 10874-1996 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1987-10-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 11页 |
适用范围
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所属分类： 电子元器件与信息技术 电子元件 电容器
【英文标准名称】:TestMethodforFilterFlowofAviationFuelsatLowTemperatures
【原文标准名称】:低温下航空燃料滤膜流动的试验方法
【标准号】:ASTMD4305-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:流动;石油产品;航空燃料;低温;过滤器;试验
【英文主题词】:filters;flows;aviationfuels;lowtemperatures;testing;petroleumproducts
【摘要】:
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforMulti-ModalStrengthTestingofAutohesives(ContactAdhesives)
【原文标准名称】:胶粘剂(压敏胶粘剂)多重强度试验的标准试验方法
【标准号】:ASTMD1995-1992(2011)
【标准状态】:现行
【国别】:
【发布日期】:1992
【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】:D14.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:自粘剂;劈裂;登高鼓皮;压缩切变;T-剥落;分裂测试;抗压试验-粘合剂;接触型胶粘剂
【英文主题词】:autohesive;cleavage;climbingdrumpeel;compressionshear;T-peel;Cleavagetesting;Compressiontesting--adhesives;Contactadhesives
【摘要】:Theapplicationproceduresinthesetestmethodsyieldfilmsfreeoftheirregularities,artifacts,andvariationsinherentinbrushing,spraying,ortrowelling.Accordingly,thesetestmethodsmeasurethestrengthofautohesivebondsbetweentwoautohesivefilmswhosetopographyischaracteristicoftheautohesiveitselfratherthantheartifactsoftheapplicationprocedure.Itisrecommendedthatthisinformationbeconsideredinextrapolatingresultsfromthesetestmethods.Themagnitudeofthemeasuredbondstrengthsalsodependsonotherfactorssuchasfilmthickness,themannerinwhichpressureisapplied,themagnitudeanddurationoftheapplicationofpressure,andthetemperatureandhumidityatvariousstagesofthetest.Accordingly,theseparametersshouldbechoseninamannerconsistentwiththeenduseoftheautohesive.Incaseofadisputearisingfromdifferencesinreportedresultswhenusingthesetestmethodsforacceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodiagnosethecausesforlackofrepeatabilitybetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofprecision.Asaminimum,thetwopartiesshouldselectagroupoftestspecimensandvisuallyexaminetheirfailuremodes.TheaverageresultsfromthetwolaboratoriesshouldthenbecomparedusingStudent''st-testforunpaireddataandanacceptableprobabilitylevelshouldbechosenbythetwopartiesbeforetestingisbegun.1.1Thesetestmethodscoverproceduresbywhichautohesivescanbetestedinfourcommonlypracticedstressingmodes,namely:compressionshear,cleavage,climbingdrumpeel,andT-peel,andinvariouscombinationsofrigid-to-rigid,flexible-to-rigid,andflexible-to-flexibleadherendsthatincludewood,aluminum,steelflakeboard,andplasticlaminates.Quantitativetestmethodsthatinvolvebondformationbyimpactarealsoprovided.Threepressuremodesareprovided:static,roller,andimpact.Becausetherearemanytypesofcontactadhesivesbeingusedtobondmanydifferentmaterialsunderwidelydifferingconditions,thesetestmethodsaredesignedtoallowtheusertoselectthetestmode,coatingthickness,temperatureandrelativehumidityconditions,pressuremagnitudeandmode,opentime,andbond-conditioningtime.1.1.1Thebond-formationprocessusedwithautohesivesisunlikethatofallotheradhesivesandinconsequence,testingofautohesivesrequiresmethodsthatareunlikethoseprovidedbyotherASTMstandards.SeeAnnexA1.1.2Achoiceofadherendsisavailableineachtestmode.ThecombinationofadherendsthatcanbebondedtogetherislimitedtothoseshowninAppendixX1.1.3Methodsforapplicationofpressureareavailableineachtestmode.Foraparticularcombinationofsubstrates,themeansavailableforapplicationofpressurearelimitedtothoseshowninAppendixX2.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificprecautionarystatementsaregivenin7.5.
【中国标准分类号】:G38
【国际标准分类号】:
【页数】:12P.;A4
【正文语种】:
