【英文标准名称】:StandardTestMethodsforTensile,Compressive,andFlexuralCreepandCreep-RuptureofPlastics
【原文标准名称】:塑料的张力、压力和柔性蠕变以及蠕变断裂的标准试验方法
【标准号】:ASTMD2990-2009
【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】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:creep;creep-rupture;plastics;Compressiontesting--plastics;Creep;Creeprupture;Flexuraltesting--plastics;Tensileproperties/testing--plastics;NumberCode83.080.01(Plastingeneral)
【摘要】:Datafromcreepandcreep-rupturetestsarenecessarytopredictthecreepmodulusandstrengthofmaterialsunderlong-termloadsandtopredictdimensionalchangesthatmayoccurasaresultofsuchloads.Datafromthesetestmethodscanbeused:(1)tocomparematerials,(2)inthedesignoffabricatedparts,(3)tocharacterizeplasticsforlong-termperformanceunderconstantload,and(4)undercertainconditions,forspecificationpurposes.Beforeproceedingwiththistestmethod,referenceshallbemadetothespecificationofthematerialbeingtested.Anyspecimenpreparation,conditioning,dimensions,and/ortestingparameterscoveredinthematerialspecificationshalltakeprecedenceoverthosementionedinthistestmethod,exceptincaseswheretodosowouldconflictwiththepurposeforconductingtesting.Iftherearenomaterialspecifications,thenthedefaultconditionsapply.1.1Thesetestmethodscoverthedeterminationoftensileandcompressivecreepandcreep-ruptureofplasticsunderspecifiedenvironmentalconditions(see3.1.3).1.2Whilethesetestmethodsoutlinetheuseofthree-pointloadingformeasurementofcreepinflexure,four-pointloading(whichisusedlessfrequently)canalsobeusedwiththeequipmentandprinciplesasoutlinedinTestMethodsD790.1.3Formeasurementsofcreep-rupture,tensionisthepreferredstressmodebecauseforsomeductileplasticsrupturedoesnotoccurinflexureorcompression.1.4Testdataobtainedbythesetestmethodsarerelevantandappropriateforuseinengineeringdesign.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Aspecificwarningstatementisgivenin6.8.2.Note18212;ThisstandardandISO899Parts1and2addressthesamesubjectmatter,butdifferintechnicalcontent(andresultscannotbedirectlycomparedbetweenthetwotestmethods).ISO899Part1addressestensilecreepandcreeptoruptureandISO899Part2addressesflexuralcreep.CompressivecreepisnotaddressedinISO899.
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:20P.;A4
【正文语种】:英语


【英文标准名称】:Packaging-Flexiblelaminatetubes-Testmethodstoassessthestrengthofthesideseam.
【原文标准名称】:包装:评估弹性层压管侧缝强度的试验方法.
【标准号】:NFH34-066-2011
【标准状态】:现行
【国别】:法国
【发布日期】:2011-09-01
【实施或试行日期】:2011-09-10
【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】:
【英文主题词】:Applications;Burstingtests;Compositematerials;Cylindricalshape;Deformablepackages;Durability;Laminates;Lapjoints;Longitudinalseams;Meansofpackaging;Overlappedjoint;Overlappingweld;Packages;Packaging;Plastics;Plasticsflexibletube;Seams;Strengthofmaterials;Testequipment;Testing;Tubeshoulders;Tubes(packages);Welds
【摘要】:
【中国标准分类号】:A82
【国际标准分类号】:55_120
【页数】:11P;A4
【正文语种】:其他