DIN 4890-1975 英寸-毫米.换算的基本原则
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【英文标准名称】:Inch-Millimetre;FundamentalsforConversion
【原文标准名称】:英寸-毫米.换算的基本原则
【标准号】:DIN4890-1975
【标准状态】:现行
【国别】:德国
【发布日期】:1975-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:换算(计量单位);尺寸;线性尺寸;换算表;工作状态
【英文主题词】:Conversiontables;Conversion(unitsofmeasurement);Dimensions;Duty;Lineardimensions
【摘要】:Inch—millimetre;fundamentalsforconversion
【中国标准分类号】:A51
【国际标准分类号】:01_060
【页数】:2P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforDeterminingtheRateofAirLeakageThroughExteriorWindows,CurtainWalls,andDoorsUnderSpecifiedPressureandTemperatureDifferencesAcrosstheSpecimen
【原文标准名称】:在试样两侧特定压力和温度差下透过外窗,护墙和门的空气泄漏率的测定方法
【标准号】:ASTME1424-1991(2000)
【标准状态】:现行
【国别】:
【发布日期】:1991
【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】:E06.51
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:门;墙;窗;透气率;试验
【英文主题词】:airleakage;curtainwalls;differentialtemperature;doors;fenestration;energyanalysis;laboratorymethod;staticpressurechamber;testmethod;testingwindows;
【摘要】:Theexteriorbuildingenvelopeanditscomponents(forexample,windowsanddoors)separatetheinteriorconditionedspacesfromexteriorenvironmentalfactorssuchasheat,cold,rain,wind,noisedust,etc.Buildingmaterialsandcomponentscanexpandorcontracttovaryingdegrees,dependingonseasonalanddiurnalexteriorambientairtemperatures.Fluctuationsintheambientairtemperaturescanalterthesealingcharacteristicsofwindows,curtainwalls,anddoorsbychangingweathersealcompressionratios.Thermalexpansionorcontractionofframingmaterialscoupledwiththermalblowingduetotemperaturegradientsthroughtheproduct,andalterationsintheeffectiveleakageareasduetoweathersealshrinkageandcompressionset,canalsosignificantlyaltertheairleakageratesoftheseproductsinfieldserviceapplications.AirleakagetestsperformedusingTestMethodE283(alaboratoryairleakagetestperformedatambienttemperatureconditions)willnotaccountaccuratelyforchangesinairleakageratesthatmayoccurfromdimensionalchangesinfenestrationsystems,materials,andcomponents.Itisrecommendedthattestspecifiersconsultthemanufacturerforrecommendedtesttemperatureextremes.Thisprocedureprovidesameansforevaluatingairleakageratesoffenestrationsystemsundervarioustemperatureandpressureconditionsandairflowdirections.Itisalsoapplicableforuseinevaluatingtheefficiencyofweathersealingproductsinfenestrationsystems.Allairflowratesareconvertedtostandardconditionstoprovideameansofcomparisonbetweenmeasurementsmadeatdifferentambientairtemperatureandpressureconditions.Airleakageratesaresometimesusedforcomparisonpurposes.Suchcomparisonsmaynotbevalidunlessthecomponentsbeingtestedandcomparedareofessentiallythesamesize,configuration,anddesign.1.1Thistestmethodprovidesastandardlaboratoryprocedurefordeterminingtheairleakageratesofexteriorwindows,curtainwalls,anddoorsunderspecifieddifferentialairtemperatureandpressureconditionsacrossthespecimen.1.2Specifiedtemperatureandpressureconditionsarerepresentativeofthosethatmaybeencounteredattheexteriorthermalenvelopeofbuildings,excludingtheeffectsofheatbuildupduetosolarradiation.1.3Thislaboratoryprocedureisapplicabletoexteriorwindows,curtainwalls,anddoorsandisintendedtomeasureonlysuchleakageassociatedwiththeassemblyandnottheinstallation;however,thetestmethodcanbeadaptedforthelatterpurpose.1.4Thisisalaboratoryprocedurefortestingatdifferentialtemperatureconditions.PersonsinterestedinalaboratorytestatambientconditionsshouldreferenceTestMethodE283.PersonsinterestedinafieldtestoninstalledwindowsanddoorsshouldreferenceMethodE783.1.5Personsusingthisprocedureshouldbeknowledgeableintheareasofheattransfer,fluidmechanics,andinstrumentationpractices,andshallhaveageneralunderstandingoffenestrationproductsandcomponents.1.6Throughoutthistestmethod,SIunitsarelistedfirstinaccordancewithASTMCommitteeE-6metricpolicyandshallbeconsideredtheprimaryunits.Inch-poundunitsareprovidedinparenthesis.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:P31
【国际标准分类号】:91_060_50
【页数】:7P.;A4
【正文语种】:
Product Code:SAE AMS6437
Title:Steel Sheet, Strip, and Plate 5.0cr 1.3mo 0.50v (0.38 0.43c)
Issuing Committee:Ams E Carbon And Low Alloy Steels Committee
Scope:This specification covers an aircraft-quality, low-alloy steel in the form of sheet, strip, and plate.
