SAE ARP4968 Installation Standard for Couplings
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来源:标准资料网
Product Code:SAE ARP4968
Title:Installation Standard for Couplings
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope: This document describes the engineering requirements for the assembly and installation of tube couplings used on aircraft fuel and pneumatic systems. In case of conflict between this document and an engineering drawing, the provisions of the engineering drawing shall prevail.
【英文标准名称】:Plastics-Determinationoftemperatureofdeflectionunderload-Part1:Generaltestmethod
【原文标准名称】:塑料.载荷下挠曲温度的测定.第1部分:一般试验方法
【标准号】:ISO75-1-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-05-01
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;尺寸稳定性;热稳定性;抗弯应力;定义;温度测量;弯曲试验;试验设备;材料试验;温度;试样;三点负载;叠层板材;试验条件;测定;试验
【英文主题词】:Bendtesting;Bendingstress;Definitions;Determination;Dimensionalstability;Laminates;Materialstesting;Plastics;Temperature;Temperaturemeasurement;Testequipment;Testspecimens;Testing;Testingconditions;Thermalstability;Three-pointloading
【摘要】:1.1ISO75specifiesmethodsforthedeterminationofthetemperatureofdeflectionunderload(flexuralstressunderthree-pointloading)ofplastics.Differenttypesoftestspecimenanddifferentconstantloadsaredefinedtosuitdifferenttypesofmaterial.1.2ThispartofISO75givesageneraltestmethod,part2givesspecificrequirementsforplastics(includingfilledplasticsandfibre-reinforcedplasticsinwhichthefibrelength,priortoprocessing,isupto7,5mm)andebonitewhilepart3givesspecificrequirementsforhigh-strengththermosettinglaminatesandlong-fibre-reinforcedplasticsinwhichthefibrelengthisgreaterthan7,5mm.1.3Themethodsspecifiedaresuitableforassessingtherelativebehaviourofdifferenttypesofmaterialatelevatedtemperatureunderloadataspecifiedrateoftemperatureincrease.Theresultsobtaineddonotnecessarilyrepresentmaximumapplicabletemperatures,becauseinpracticeessentialfactorssuchastime,loadingconditionsandnominalsurfacestressmaydifferfromthetestconditions.Truecomparabilityofdatacanonlybeachievedformaterialshavingthesameroom-temperatureflexuralmodulus.1.4Themethodsspecifypreferreddimensionsforthetestspecimens.Testswhicharecarriedoutonspecimensofdifferentdimensions,oronspecimenswhicharepreparedunderdifferentconditions,mayproducedifferentresults.Consequently,whenrepeatabledataarerequired,samplepreparationconditionsandtestvariablesshouldbecarefullycontrolledandrecorded.1.5Dataobtainedusingthetestmethodsdescribedmaynotbeusedtopredictactualend-useperformance.Thedataarenotintendedfordesignanalysisorpredictingtheenduranceofmaterialsatelevatedtemperatures.1.6Forpart2,twotestspecimenpositionsareallowed.However,theflatwisepositionisthepreferredandrecommendedone,whiletestingintheedgewisepositionisdescribedasoptionalonly.Itisintendedtoremovethisspecimenpositionaltogetheronoccasionofthenextrevisionofthisstandard.Part3onlyallowsflatwisetesting.1.7ThismethodiscommonlyknownastheHDTtest(heatdeflectiontestorheatdistortiontest),althoughthereisnoofficialdocumentusingthisdesignation.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:18P.;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforSupplementalCoolantAdditives(SCAs)forUseinPrechargingCoolantsforHeavy-DutyEngines
【原文标准名称】:用于重载电机的预装冷却剂中的辅助冷却添加剂(SCAS)的标准规范
【标准号】:ASTMD5752-1998
【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】:辅助冷却添加剂;发动机冷却剂;重载电机冷却剂;发动机
【英文主题词】:
【摘要】:
【中国标准分类号】:K20
【国际标准分类号】:71_100_45
【页数】:6P;A4
【正文语种】:英语
