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ASTM F1488-2003 复合挤压合成材料管标准规范

作者:标准资料网 时间:2024-05-17 10:07:58  浏览:8049   来源:标准资料网
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【英文标准名称】:StandardSpecificationforCoextrudedCompositePipe
【原文标准名称】:复合挤压合成材料管标准规范
【标准号】:ASTMF1488-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:F17.11
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:丁二烯;丙烯腈;氯化的;聚乙烯管;配件
【英文主题词】:ABS;CPVC;cellular;coextruded;composite;PVC
【摘要】:1.1Thisspecificationcoverscoextrudedcompositepipe,producedbyacoextrusiondiesystem,inwhichtheconcentriclayersareformedandcombinedbeforeexitingthedie.1.1.1Materialslistedinthematerialsectionarepermittedtobeusedinanylayerofthecoextrudedcompositepipe.Whencoextrudedcompositepipeisproducedwiththreelayers,themiddlelayerispermittedtobesolidorthermallyfoamed.1.1.2Thefunctionofthisspecificationistoprovidestandardizationofproduct,toproducetechnicaldata,andtoserveasapurchasingguide.1.2Compoundsthatdonotmeettherequirementsofthematerialsectionareexcluded.1.3Thecoextrudedcompositepipeispermittedtobeperforatedinaccordancewithanyspecifiedstandardorbyagreementbetweenthepurchaserandthesupplier.1.4Thecoextrudedcompositepipeispermittedtobebelledforjoiningbysolventcementingorbelledforjoiningbyanelastomericseal(gaskets),inaccordancewithanyspecifiedstandardorbyagreementbetweenthepurchaserandthesupplier.1.5Recommendationsforstorage,joining,installation,andrationalearelistedinAppendixesX1,X2,X3,andX4,respectively.1.6Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.AcompanionstandardwritteninSIunitsisunderdevelopment.1.7Thetextofthisspecificationreferencesnotes,footnotes,andappendixeswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthisspecification.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;Relatedspecificationsareasfollows:D2661,D2665,D2729,D2750,D2751,D2949,D3034,F512,F628,F758,F789,andF891.
【中国标准分类号】:H48
【国际标准分类号】:23_040_20
【页数】:11P.;A4
【正文语种】:


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【英文标准名称】:StandardPracticeforDeterminingResistanceofSyntheticPolymericMaterialstoFungi
【原文标准名称】:合成聚合材料防霉性的测定
【标准号】:ASTMG21-2009
【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】:G03.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:fungalbiosusceptability;fungaldecay;microbiologicalassay;microbiologicalsusceptability;Fungalinfluence/resistance--polymers;Polymers;Syntheticpolymers
【摘要】:Thesyntheticpolymerportionofthesematerialsisusuallyfungus-resistantinthatitdoesnotserveasacarbonsourceforthegrowthoffungi.Itisgenerallytheothercomponents,suchasplasticizers,cellulosics,lubricants,stabilizers,andcolorants,thatareresponsibleforfungusattackonplasticmaterials.Toassesmaterialsotherthanplastics,useofthistestmethodshouldbeagreeduponbyallpartiesinvolved.Itisimportanttoestablishtheresistancetomicrobialattackunderconditionsfavorableforsuchattack,namely,atemperatureof2to38x00B0;C(35to100x00B0;F)andarelativehumidityof60to100%.Theeffectstobeexpectedareasfollows:Surfaceattack,discoloration,lossoftransmission(optical),andRemovalofsusceptibleplasticizers,modifiers,andlubricants,resultinginincreasedmodulus(stiffness),changesinweight,dimensions,andotherphysicalproperties,anddeteriorationofelectricalpropertiessuchasinsulationresistance,dielectricconstant,powerfactor,anddielectricstrength.OftenthechangesinelectricalpropertiesaredueprincipallytosurfacegrowthanditsassociatedmoistureandtopHchangescausedbyexcretedmetabolicproducts.Othereffectsincludepreferentialgrowthscausedbynonuniformdispersionofplasticizers,lubricants,andotherprocessingadditives.Attackonthesematerialsoftenleavesionizedconductingpaths.Pronouncedphysicalchangesareobservedonproductsinfilmformorascoatings,wheretheratioofsurfacetovolumeishigh,andwherenutrientmaterialssuchasplasticizersandlubricantscontinuetodiffusetothesurfaceastheyareutilizedbytheorganisms.Sinceattackbyorganismsinvolvesalargeelementofchanceduetolocalaccelerationsandinhibitions,theorderofreproducibilitymayberatherlow.Toensurethatestimatesofbehaviorarenottoooptimistic,thegreatestobserveddegreeofdeteriorationshouldbereported.Conditioningofthespecimens,suchasexposuretoleaching,weathering,heattreatment,etc.,mayhavesignificanteffectsontheresistancetofungi.Determinationoftheseeffectsisnotcoveredinthispractice.1.1Thispracticecoversdeterminationoftheeffectoffungionthepropertiesofsyntheticpolymericmaterialsintheformofmoldedandfabricatedarticles,tubes,rods,sheets,andfilmmaterials.Changesinoptical,mechanical,andelectricalpropertiesmaybedeterminedbytheapplicableASTMmethods.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:5P.;A4
【正文语种】:英语


【英文标准名称】:Glasscontainers;manufacture;vocabulary
【原文标准名称】:玻璃容器制造术语三种语言版
【标准号】:ISO7348-1992
【标准状态】:现行
【国别】:国际
【发布日期】:1992-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC63
【标准类型】:()
【标准水平】:()
【中文主题词】:生产;术语;容器;定义;词汇;玻璃容器
【英文主题词】:Containers;Definitions;Glasscontainers;Production;Terminology;Vocabulary
【摘要】:GivestermsanddefinitionsinEnglish,FrenchandRussianaswellasindexes(AnnexA)inEnglish,FrenchandRussian.
【中国标准分类号】:Y22;A82
【国际标准分类号】:55_100
【页数】:234P.;A4
【正文语种】:英语



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