ASTM D4635-2008a 通用和包装用低密度聚乙烯薄膜标准规范

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【英文标准名称】:StandardSpecificationforPolyethyleneFilmsMadefromLow-DensityPolyethyleneforGeneralUseandPackagingApplications
【原文标准名称】:通用和包装用低密度聚乙烯薄膜标准规范
【标准号】:ASTMD4635-2008a
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:film;generaluse;low-density;packaging;polyethylene;recycledplastics;Copolymers;Density--plastics;Homopolymers;LLDPE(linearlowdensitypolyethylene)--specifications;Packing/packagingmaterials/systems--specifications;Packing/packagingm
【摘要】:1.1Thisspecificationcoversunpigmented,unsupported,low-densitypolyethylenefilms(hereafterreferredtoasfilmorfilms)fromClass1polyethylenesperSpecificationD4976.Note18212;Thedensityofafilmwillnotnecessarilybeequaltothedensityofamoldedplaquefromthesameresin.Note28212;Blendsofethylene/vinylacetate(EVA)withlow-densitypolyethylenemayhavedensitiesupto0.929g/cm3.1.2Thisspecificationisapplicabletohomopolymerpolyethylene,butisnotrestrictedtoit.Itisapplicabletofilmsmadefrompolyethylenecopolymers,andalsoapplicabletofilmsmadefromblendsofhomopolymersandcopolymers,includingethylene/vinylacetatecopolymers.1.3Thethicknessofthefilmscoveredbythisspecificationis100x03BC;morless(0.004in.orless),inclusive.Themaximumwidthofthesheetorlayflatis3.00m(120in.).1.4Thisspecificationdoesnotcoverorientedheat-shrinkablefilms.1.5Thisspecificationallowsfortheuseofrecycledpolyethylenefilmorresinasfeedstock,inwholeorinpart,aslongasalloftherequirementsofthisspecificationaremetandaslongasanyspecificrequirementsasgovernedbytheproducerandenduserarealsomet.(SeeNote3.)Note38212;GuideD7209describesterminologyanddefinitionsrelatedtorecycledplastics.1.6Thisspecificationdefinesthelevelsofthevariousphysicalpropertiesfromwhichspecificationsforspecificfilmsmaybedescribed.ThelevelsofphysicalpropertiesrequiredbyafilmforagivenapplicationareselectedfromSection6.However,Sections2-5relatingtotolerancesshallapplywithoutchangetoallfilmfallingwithinthescopeindicatedbythetitleand1.1-1.4.1.7Thisspecificationcoversdimensionaltolerances,classifications,intrinsicqualityrequirements,andtestmethods.Thedimensionaltolerancesincludethickness,width,andlengthoryield.Classificationdefinestypes,classes,surfaces,andfinishes.Theintrinsicqualityrequirementsincludedensity,workmanship,tensilestrength,heatsealability,andodor,aswellastheclassificationpropertiesforimpactstrength,coefficientoffriction,opticalproperties,andsurfacetreatment.Asamplingmethodisincluded.1.8ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.9Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportion,Section10,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note48212;ThereisnosimilarorequivalentISOspecification.
【中国标准分类号】:A82
【国际标准分类号】:83_140_10
【页数】:5P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsofFlexureTestingofSlate(BreakingLoad,ModulusofRupture,ModulusofElasticity)
【原文标准名称】:石板弯曲试验的标准试验方法(破坏载荷、断裂模数和弹性模数)
【标准号】:ASTMC120-2005
【标准状态】:作废
【国别】:美国
【发布日期】:2005
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:砌块;试验;弹性模量;断裂模数;弯曲试验;石板;建筑;天然石料;石;施工材料
【英文主题词】:Bendtesting;Blocks(building);Construction;Constructionmaterials;Modulusofelasticity;Modulusofrupture;Naturalstones;Slate;Stone;Testing
【摘要】:
【中国标准分类号】:Q21
【国际标准分类号】:91_100_15
【页数】:3P;A4
【正文语种】:英语


MIL-STD-2402 (NOTICE 1), DEPARTMENT OF DEFENSE STANDARD PRACTICE: MAPPING, CHARTING, AND GEODESY SYMBOLSFOR GRAPHIC PRODUCTS (31 MAR 2004)., The purpose of this notice is to inform users of the change in name of the preparing activity fromthe Defense and Mapping Agency (DMA) to the National Geospatial-Intelligence Agency(NGA).Change the Point