EN 13535-2001 肥料和石灰.分类
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【英文标准名称】:Fertilizersandlimingmaterials-Classification;GermanversionEN13535:2001
【原文标准名称】:肥料和石灰.分类
【标准号】:EN13535-2001
【标准状态】:现行
【国别】:
【发布日期】:2001-07
【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】:矿;计划;分类系统;镁;分类;钙有机化合物;镁有机化合物;土壤改良物质;定义;定义;钙;肥料;土壤改良;农业
【英文主题词】:Agriculture;Calcium;Calciumorganiccompounds;Classification;Classificationsystems;Definition;Definitions;Fertilizers;Magnesium;Magnesiumorganiccompounds;Mineral;Schemes;Soilimprovement;Soilimprovingmaterials
【摘要】:
【中国标准分类号】:B13
【国际标准分类号】:65_080
【页数】:7P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforFlatwiseCompressivePropertiesofSandwichCores
【原文标准名称】:层压芯材的抗平向压强的标准试验方法
【标准号】:ASTMC365/C365M-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:D30.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:压力模数;抗压强度;芯;平压;夹心;抗平压力度;三明治内层芯板
【英文主题词】:compressivemodulus;compressivestrength;core;flatwisecompression;sandwich;Flatwisecompressivestrength;Sandwichcorematerials
【摘要】:Flatwisecompressivestrengthandmodulusarefundamentalmechanicalpropertiesofsandwichcoresthatareusedindesigningsandwichpanels.Deformationdatacanbeobtained,andfromacompleteforceversusdeformationcurve,itispossibletocomputethecompressivestressatanyappliedforce(suchascompressivestressatproportionallimitforceorcompressivestrengthatthemaximumforce)andtocomputetheeffectivemodulusofthecore.Thistestmethodprovidesastandardmethodofobtainingtheflatwisecompressivestrengthandmodulusforsandwichcorestructuraldesignproperties,materialspecifications,researchanddevelopmentapplications,andqualityassurance.Inordertopreventlocalcrushingattheedgesofsomehoneycombcores,itisoftendesirabletostabilizetheedgeswithasuitablematerial,suchasathinlayerofresinorthinfacings.Flatwisecompressivestrengthdatamaybegeneratedusingeitherstabilizedspecimens(reportedasstabilizedcompressionstrength)ornon-stabilizedspecimens(reportedasbarecompressionstrength).Itiscustomaryaerospaceindustrypracticetodeterminecompressionmodulusonlywhenusingstabilizedspecimens.Factorsthatinfluencetheflatwisecompressivestrengthandshallthereforebereportedincludethefollowing:corematerial,methodsofmaterialfabrication,coregeometry(cellsize),coredensity,specimengeometry,specimenpreparation,specimenconditioning,environmentoftesting,specimenalignment,loadingprocedure,andspeedoftesting.1.1Thistestmethodcoversthedeterminationofcompressivestrengthandmodulusofsandwichcores.Thesepropertiesareusuallydeterminedfordesignpurposesinadirectionnormaltotheplaneoffacingsasthecorewouldbeplacedinastructuralsandwichconstruction.Thetestprocedurespertaintocompressioninthisdirectioninparticular,butalsocanbeappliedwithpossibleminorvariationstodeterminingcompressivepropertiesinotherdirections.Permissiblecorematerialformsincludethosewithcontinuousbondingsurfaces(suchasbalsawoodandfoams)aswellasthosewithdiscontinuousbondingsurfaces(suchashoneycomb).1.2Thistestmethoddoesnotcoverthedeterminationofcompressivecorecrushproperties.ReferenceTestMethodD7336/D7336Mfordeterminationofstaticenergyabsorptionpropertiesofhoneycombsandwichcorematerials.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3.1Withinthetexttheinch-poundunitsareshowninbrackets.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:83_120
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:Componentsofautomaticfiredetectionsystems.Methodsoftestofsensitivitytofire
【原文标准名称】:火灾自动探测系统元件.第9部分:对火敏感度的试验方法
【标准号】:BS5445Pt.9-1984
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【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】: