ASTM D 5036-1999 粘固聚氯乙烯屋面板应用的标准实施规范
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来源:标准资料网
【英文标准名称】:StandardPracticeforApplicationofAdheredPoly(VinylChloride)SheetRoofing
【原文标准名称】:粘固聚氯乙烯屋面板应用的标准实施规范
【标准号】:ASTMD5036-1999
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:建筑;屋顶层;聚氯乙烯
【英文主题词】:construction;polyvinylchloride;roofcoverings
【摘要】:
【中国标准分类号】:P32
【国际标准分类号】:91_100_50
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforDeterminingtheReproducibilityofAcousticEmissionSensorResponse
【原文标准名称】:声发射传感器响应再现性测定的标准指南
【标准号】:ASTME976-2010
【标准状态】:现行
【国别】:
【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】:E07.04
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:声发射测试;降解;再现性;传感器
【英文主题词】:Acousticemission(AE)testing;Degradation;Reproducibility;Sensors
【摘要】:Acousticemissiondataisaffectedbyseveralcharacteristicsoftheinstrumentation.Themostobviousoftheseisthesystemsensitivity.Ofalltheparametersandcomponentscontributingtothesensitivity,theacousticemissionsensoristheonemostsubjecttovariation.Thisvariationcanbearesultofdamageoraging,ortherecanbevariationsbetweennominallyidenticalsensors.Todetectsuchvariations,itisdesirabletohaveamethodformeasuringtheresponseofasensortoanacousticwave.Specificpurposesforcheckingsensorsinclude:(1)checkingthestabilityofitsresponsewithtime;(2)checkingthesensorforpossibledamageafteraccidentorabuse;(3)comparinganumberofsensorsforuseinamultichannelsystemtoensurethattheirresponsesareadequatelymatched;and(4)checkingtheresponseafterthermalcyclingorexposuretoahostileenvironment.Itisveryimportantthatthesensorcharacteristicsbealwaysmeasuredwiththesamesensorcablelengthandimpedanceaswellasthesamepreamplifierorequivalent.Thisguidepresentsseveralproceduresformeasuringsensorresponse.Someoftheseproceduresrequireaminimumofspecialequipment.ItisnottheintentofthisguidetoevaluateAEsystemperformance.RefertoPracticeE750forcharacterizingacousticinstrumentationandrefertoGuideE2374forAEsystemperformanceverification.Theproceduresgiveninthisguidearedesignedtomeasuretheresponseofanacousticemissionsensortoanarbitrarybutrepeatableacousticwave.Theseproceduresinnowayconstituteacalibrationofthesensor.Theabsolutecalibrationofasensorrequiresacompleteknowledgeofthecharacteristicsoftheacousticwaveexcitingthesensororapreviouslycalibratedreferencesensor.Ineithercase,suchacalibrationisbeyondthescopeofthisguide.Thefundamentalrequirementforcomparingsensorresponsesisasourceofrepeatableacousticwaves.Thecharacteristicsofthewavedonotneedtobeknownaslongasthewavecanbereproducedatwill.Thesourcesandgeometriesgiveninthisguidewillproduceprimarilycompressionalwaves.Whilethesensorswillresponddifferentlytodifferenttypesofwaves,changesintheresponsetoonetypeofwavewillimplychangesintheresponsestoothertypesofwaves.Theseproceduresuseatestblockorrod.Suchadeviceprovidesaconvenientmountingsurfaceforthesensorandwhenappropriatelymarked,canensurethatthesourceandthesensorarealwayspositionedidenticallywithrespecttoeachother.Thedeviceorrodalsoprovidesmechanicalloadingofthesensorsimilartothatexperiencedinactualuse.Caremustbetakenwhenusingthesedevicestominimizeresonancessothatthecharacteristicsofthesensorarenotmaskedbytheseresonances.Theseproceduresallowcomparisonofresponsesonlyonthesametestsetup.Noattemptshouldbemadetocompareresponsesondifferenttestsetups,whetherinthesameorseparatelaboratories.1.1Thisguidedefinessimpleeconomicalproceduresfortestingorcomparingtheperformanceofacousticemissionsensors.Theseproceduresallowtheusertocheckfordegradationofasensorortoselectsetsofsensorswithnearlyidenticalperformances.Theproceduresarenotcapableofprovidinganabsolutecalibrationofthesensornordotheyassuretransferabilityofdatasetsbetweenorganizations.1.2Units8212;ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareinclu......
【中国标准分类号】:L31
【国际标准分类号】:
【页数】:7P.;A4
【正文语种】:
MIL-DTL-32266, DETAIL SPECIFICATION: WIRE ROPE, 1.5 INCH DIAMETER, GALVANIZED, COMPACTED STRAND, FOR AIRCRAFT ELEVATOR (08 JUN 2008)., This specification covers the requirements for 1.5 inch diameter, galvanized, compacted strand construction wire rope (see 6.4.8 and 6.4.9) used for Navy shipboard aircraft elevators. The wire rope must provide high tensile stiffness to minimize the changes in platform elevation associated with roll-on and roll-off of aircraft and a uniform density that provides consistent tension values in service. It must also provide good bending fatigue performance to accommodate repeated cycling over the various sheaves in the elevator system. The rope must be resistant to corrosion associated with continual exposure to and operation in a salt water environment.
