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【英文标准名称】:StandardTestMethodsforFlexuralPropertiesofUnreinforcedandReinforcedPlasticLumberandRelatedProducts
【原文标准名称】:非增强和增强塑料木材及相关制品的挠性特性的标准试验方法
【标准号】:ASTMD6109-2010
【标准状态】:现行
【国别】:美国
【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】:D20.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:flexuralproperties;plasticlumber;recycledplastics;secantmodulus;specimen;stiffness;strength;stressatagivenstrain;Flexuraltesting--plastics;Plasticlumber/shapes;Reinforcedplastics;Unreinforcedplastics
【摘要】:Flexuralpropertiesdeterminedbythesetestmethodsareespeciallyusefulforresearchanddevelopment,qualitycontrol,acceptanceorrejectionunderspecifications,andspecialpurposes.Specimendepth,temperature,atmosphericconditions,andthedifferenceinrateofstrainingspecifiedinTestMethodsAandBarecapableofinfluencingflexuralpropertyresults.1.1Thesetestmethodsaresuitablefordeterminingtheflexuralpropertiesforanysolidorhollowmanufacturedplasticlumberproductofsquare,rectangular,round,orothergeometriccrosssectionthatshowsviscoelasticbehavior.Thetestspecimensarewholex201C;asmanufacturedx201D;pieceswithoutanyalteringormachiningofsurfacesbeyondcuttingtolength.Assuch,thisisatestmethodforevaluatingthepropertiesofplasticlumberasaproductandnotamaterialpropertytestmethod.Flexuralstrengthcannotbedeterminedforthoseproductsthatdonotbreakorthatdonotfailintheextremeouterfiber.1.2TestMethodA8212;designedprincipallyforproductsintheflatorx201C;plankx201D;position.1.3TestMethodB8212;designedprincipallyforthoseproductsintheedgewiseorx201C;joistx201D;position.1.4Plasticlumbercurrentlyisproducedusingseveraldifferentplasticmanufacturingprocesses.Theseprocessesutilizeanumberofdiverseplasticresinmaterialsystemsthatincludefillers,fiberreinforcements,andotherchemicaladditives.Thetestmethodsareapplicabletoplasticlumberproductswheretheplasticresinisthecontinuousphase,regardlessofitsmanufacturingprocess,typeorweightpercentageofplasticresinutilized,typeorweightpercentageoffillersutilized,typeorweightpercentageofreinforcementsutilized,andtypeorweightpercentageofotherchemicaladditives.1.4.1Alternativetoasingleresinmaterialsystem,diverseandmultiplecombinationsofbothvirginandrecycledthermoplasticmaterialsystemsarepermittedinthemanufactureofplasticlumberproducts.1.4.2Diversetypesandcombinationsofinorganicandorganicfillersystemsarepermittedinthemanufacturingofplasticlumberproducts.Inorganicfillersincludesuchmaterialsastalc,mica,silica,wollastonite,calciumcarbonate,andsoforth.Organicfillersincludelignocellulosicmaterialsmadeorderivedfromwood,woodflour,flaxshive,ricehulls,wheatstraw,andcombinationsthereof.1.4.3Fiberreinforcementsusedinplasticlumberincludemanufacturedmaterialssuchasfiberglass(choppedorcontinuous),carbon,aramidandotherpolymerics;orlignocellulosic-basedfiberssuchasflax,jute,kenaf,andhemp.1.4.4Awidevarietyofchemicaladditivesareaddedtoplasticlumberformulationstoservenumerousdifferentpurposes.Examplesincludecolorants,chemicalfoamingagents,ultravioletstabilizers,flameretardants,lubricants,anti-staticproducts,biocides,heatstabilizers,andcouplingagents1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorlimitationspr......
【中国标准分类号】:Q23
【国际标准分类号】:83_140_01
【页数】:7P.;A4
【正文语种】:英语