BS 4300/11-1969 一般工程用锻造铝和铝合金规范(补充系列).第11部分:5454型锻坯及锻件

上一篇: BS 3630-9-1969 锌和锌合金的取样与分析方法.第9部分:锌锭和锌合金A中的铜(光度测量法)
下一篇: BS 2S 517-1969 碳-锰钢板和钢带规范(116/131hbar)

【英文标准名称】:Multi-burnergas-firedoverheadradianttubeheatersystemsfornon-domesticuse-Part4:systemH-Safety.
【原文标准名称】:非家用多燃炉燃气架空辐射管加热系统.第4部分:H系统.安全性
【标准号】:NFE31-404-4-2009
【标准状态】:现行
【国别】:法国
【发布日期】:2009-04-01
【实施或试行日期】:2009-04-25
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:自动;燃烧器;CE标记;分类;商业的;结构要求;校正装置;定义;耐久性;定义(术语);效应;发射;排放;设备安全;设备安全性;风扇;鼓风机;点火电路;气体加热器;燃气技术;燃气动力装置;加热器;工业的;工业;红外灯;检验;套圈;安装说明;安装说明书;使用说明;使用说明书;处理;惰性气体铠装电弧焊;作标记;操作说明书;;辐射加热器;警告;危险管理;安全;安全性;安全工程;安全性工程;安全要求;安全性要求;规范(验收);试验;测试;痕量元素分析;贸易;应用;使用
【英文主题词】:Automatic;Burners;CEmarking;Classification;Commercial;Constructionrequirements;Correctingunits;Definitions;Effects;Emission;Equipmentsafety;Fans;Gasheaters;Gastechnology;Gas-powereddevices;Heaters;Industrial;Industries;Infraredlamps;Inspection;Installationinstructions;Instructionsforuse;Marking;Operationalinstructions;Overheadradianttubeheaters;Radiantheaters;Safety;Safetyengineering;Safetyrequirements;Specification(approval);Testing;Trade;Use
【摘要】:
【中国标准分类号】:Q83
【国际标准分类号】:91_140_40
【页数】:107P;A4
【正文语种】:其他


【英文标准名称】:StandardTestMethodforTotalEnergyImpactofPlasticFilmsByDartDrop
【原文标准名称】:用锥体坠落器对塑料薄膜耐总能量冲击的试验方法
【标准号】:ASTMD4272-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D20.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:dartdrop;energytobreak;film;free-fallingdart;impact;instrumentedimpact;totalenergy;Dartimpactmethod;Energyanalysis;Free-fallingdartmethod;Impactresistance--plastics;Impacttesting--plastics;Kineticenergy;Plasticsheetandf
【摘要】:Evaluationoftheimpacttoughnessoffilmisimportantinpredictingtheperformanceofamaterialinapplicationssuchaspackaging,construction,andotheruses.Thetestsimulatestheactionencounteredinapplicationswheremoderate-velocitybluntimpactsoccurinrelativelysmallareasoffilm.Thevaluesobtainedbythistestmethodarehighlydependentonthemethodandconditionsoffilmfabricationaswellasthetypeandgradeofresin.Testmethodsemployingdifferentmissilevelocities,impingingsurfacediameters,oreffectivespecimendiameterswillmostlikelyproducedifferentresults.Dataobtainedbythistestmethodcannotnecessarilybecompareddirectlywiththoseobtainedbyothertestmethods.Theimpactresistanceofafilm,whilepartlydependentonthickness,doesnothaveasimplecorrelationwithsamplethickness.Hence,impactvaluesexpressedinjoules(ftx00B7;lbf)normalizedoverarangeofthicknesswillnotnecessarilybelinearwiththickness.Datafromthistestmethodarecomparableonlyforspecimensthatvarybynomorethanx00B1;15%fromthenominaloraveragethicknessofthespecimenstested.Thetestresultsobtainedbythistestmethodaregreatlyinfluencedbythequalityoffilmundertest.Theinfluenceofvariabilityofdataobtainedbythisprocedurewill,therefore,dependstronglyonthesamplequality,uniformityoffilmthickness,thepresenceofdiemarks,contaminants,etc.Severalimpacttestmethodsareusedforfilm.Itissometimesdesirabletoknowtherelationshipsamongtestresultsderivedbydifferenttestmethods.Astudywasconductedinwhichfourfilmsmadefromtworesins(polypropyleneandlinearlow-densitypolyethylene),withtwofilmthicknessesforeachresin,wereimpactedusingTestMethodsD1709(TestMethodA),TestMethodD3420(ProceduresAandB),andTestMethodD4272.ThetestresultsareshowninAppendixX2.DifferencesinresultsbetweenTestMethodsD1709andD4272areexpectedsinceTestMethodsD1709representsfailure-initiatedenergy,whileTestMethodD4272isinitiationpluscompletionenergy.Somefilmsmayshowconsistencywhentheinitiationenergyisthesameasthetotalenergy.ThisstatementandthetestdataalsoappearinthesignificanceandappendixessectionsofTestMethodsD1709andD3420.1.1Thistestmethoddescribesthedeterminationofthetotalenergyimpactofplasticfilmsbymeasuringthekineticenergylostbyafree-fallingdartthatpassesthroughthefilm.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;Filmhasbeenarbitrarilydefinedassheetinghavingnominalthicknessnotgreaterthan0.25x03BC;m(0.010in.).Note28212;ThistestmethodandISO7765x2013;2addressthesamesubjectmatter,butdifferintechnicalcontent(andresultscannotbedirectlycomparedbetweenthetwotestmethods).TheISOtestmethodcallsforadirectreadoutofenergybyusingaloadcellaspartoftheimpactorhead,whileTestMethodD4272callsforaconstantweightimpactor,thenmeasuringthetimeoftravelthroughagivendistance......
【中国标准分类号】:G33
【国际标准分类号】:83_140_10
【页数】:6P.;A4
【正文语种】:英语