EN 2591-6305-2001 航空航天系列.光电连接件.试验方法.第6305部分:光学元件.温度急剧变化
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【英文标准名称】:Aerospaceseries-Elementsofelectricalandopticalconnection;Testmethods-Part6305:Opticalelements;Rapidchangeoftemperature;GermanandEnglishversionEN2591-6305:2001
【原文标准名称】:航空航天系列.光电连接件.试验方法.第6305部分:光学元件.温度急剧变化
【标准号】:EN2591-6305-2001
【标准状态】:现行
【国别】:
【发布日期】:2003-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;测量;空气温度;紧固件;稳定性;环境条件;航空运输;多语种的;电的;热学;电流;航天运输;光学元件;电气元件;飞行器部件;电力设备;电连接器;试验条件;气候;气候试验;试验;耐热冲击强度;温度变化;环境试验;热循环;温度变化试验;耐热冲击能力;稳定性试验;热循环试验;温度;低温试验;设备;试验持续时间
【英文主题词】:Aerospacetransport;Airtemperatures;Airtransport;Aircraftcomponents;Changesoftemperature;Climate;Climatictests;Coldness;Electricconnectors;Electriccurrent;Electrical;Electricalcomponents;Electricalinstallations;Environmentalcondition;Environmentaltesting;Equipment;Fasteners;Heat;Measurement;Multilingual;Opticalelements;Spacetransport;Stability;Stabilitytests;Temperature;Testduration;Testonchangesoftemperature;Testing;Testingconditions;Thermalcycling;Thermalshockendurance;Thermalshockresistance;Thermal-cyclingtests
【摘要】:
【中国标准分类号】:V26
【国际标准分类号】:49_060
【页数】:9P.;A4
【正文语种】:英语
【英文标准名称】:Compression,injectionmouldsanddiecastingdies;terms,symbols
【原文标准名称】:压模.注塑模和压注模.名称.符号
【标准号】:DIN16750-1978
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:StandardTestMethodsforImpactResistanceofRigidPoly(VinylChloride)(PVC)BuildingProducts
【原文标准名称】:硬质聚氯乙烯(PVC)建筑产品耐冲击性的标准试验方法
【标准号】:ASTMD4226-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D20.24
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:建筑;塑料制品;塑料;聚氯乙烯;试验;冲击试验;冲击强度
【英文主题词】:brittlefailureenergy;buildingproducts;failureenergy;fallingweight;impacttest
【摘要】:Theimpactstrengthvaluesobtainedontheflatsectionsofabuildingproductprofilearerelevantonlytotheflatsectionthathasbeentestedandthesevaluesdonotnecessarilyindicatetheimpactresistanceofthewholeproduct,whichisaffectedbytheconfigurationoftheprofile(thatis,corners,ribs,etc).Constantweightandvariableheight,employedinthesetestmethods,allowthevelocityofimpacttovaryand,therefore,byProcedureB,candeterminetheenergyofductile-to-brittletransition,whichcannotbedeterminedifavariableweightisdroppedfromaconstantheight.Thesetestprocedureshavebeenfoundtobeusefulelementsinrigidpoly(vinylchloride)(PVC)buildingproductcharacterization.Compoundqualification,finishedproductqualitycontrol,environmentalandweatherabilityresearchanddevelopmentstudies,andfabricationtolerancepredictionconstituteusefulapplications.Choiceofthespecificimpactorheadconfigurationusedisrelatedtoavarietyofproductattributes,suchasspecimenthicknessandproducttoughnessaswellasabstractfactors,suchastheanticipatedmodeoffailureinaspecificapplication.Thegeometricuniquenessoftheimpactorheadconfigurationspreventsanycomparisonorcorrelationoftestingresultsonsamplestestedwithdifferingimpactorheadconfigurations.Ingeneral,theconicalimpactor,C.125,isusefultoensurefailureofthickerspecimenswheretheH.25impactorcausednofailure.Note28212;Equivalentsurfaceconditionsaremorelikelytooccurwhenspecimensarepreparedbycompressionmoldingorextrusionthanbyinjectionmolding.Whencomparingdifferentsamplestestedwiththesameimpactorheadconfiguration,impactresistanceshallbepermittedtobenormalizedforaveragespecimenthicknessoverareasonablybroadrange(forexample,1to3mm).3However,thisshouldonlybedonewhenthesurfaceconditionslistedin6.1areessentiallyequivalent.FIG.2ImpactTester1.1Thesetestmethodscoverthedeterminationoftheenergyrequiredtocrackorbreakrigidpoly(vinylchloride)(PVC)plasticsheetingandprofileflatsectionsusedinbuildingproducts,aswellasextrudedormoldedtestsamples,underspecifiedconditionsofimpactfromafreefallingstandardweightstrikinganimpactorwitheitheroftwoconfigurationsincontactwiththespecimen.1.2Twotestproceduresareincluded:1.2.1ProcedureA,usedtodetermineminimumimpactenergyrequiredtocausefailure(hole,crack,split,shatter,ortear).1.2.2ProcedureB,usedtodetermineminimumimpactenergyrequiredtocausebrittlefailure.1.3Thevaluesininch-poundunitsaretoberegardedasthestandard.Note18212;ThereisnosimilarorequivalentISOstandard.1.4Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excluding,thoseintablesinfigures)shallnotbeconsideredasrequirementsofthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.
【中国标准分类号】:Q74
【国际标准分类号】:83_080_20
【页数】:7P.;A4
【正文语种】:
