【英文标准名称】:Plastics-Plasticizedpoly(vinylchloride)(PVC-P)mouldingandextrusionmaterials-Designationsystemandbasisforspecifications
【原文标准名称】:塑料.增塑聚氯乙烯(PVC-P)注模和挤压材料.标识系统和规范基础
【标准号】:BSENISO2898-1-2000
【标准状态】:现行
【国别】:英国
【发布日期】:1996-12-15
【实施或试行日期】:1996-12-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:硬度;增塑聚氯乙烯;材料的机械性能;挤压;聚偏二氯乙烯;硬挺度;模塑材料;聚氯乙烯;密度;分类系统;高聚物;识别方法;丸状材料;小丸;名称与符号;塑料;粒状材料
【英文主题词】:
【摘要】:1ThispartofISO2898establishesasystemofdesignationforplasticizedthermoplasticmaterialwhichmaybeusedasthebasisforspecifications.2ThetypesofPVC-Pplasticsaredifferentiatedfromeachotherbyaclassificationsystembasedonappropriatelevelsofthedesignatoryproperties:a)Shorehardness;b)density;c)torsional-stiffnesstemperatureat300MPa;andoninformationaboutphysicalform,intendedapplicationand/ormethodofprocessing,importantproperties,additivesandcolorants.3ThispartofISO2898isapplicabletoallplasticizedcompositionsofhomopolymersandcopolymersthatcontainatleast50%(m/m)ofvinylchloride.Itisalsoapplicabletoplasticizedcompositionscontainingchlorinatedpoly(vinylchloride)andtoplasticizedcompositionscontainingblendsofoneormoreoftheabove-mentionedpolymers,providedthatthetotalamountofthesepolymersrepresentsatleast50%(m/m)ofthepolymercontentofthecomposition.ThispartofISO2898appliestomaterialsreadyfornormaluseintheformofpowder(dryblends),granulesorpellets,unmodifiedormodifiedbycolorants,additives,fillers,etc.ThispartofISO2898doesnotapplytocellularplasticsortopastecompositions(plastisols).4Itisnotintendedtoimplythatmaterialshavingthesamedesignationgivenecessarilythesameperformance.ThispartofISO2898doesnotprovideengineeringdata,performancedataordataonprocessingconditionswhichmayberequiredtospecifyamaterialforaparticularapplicationand/ormethodofprocessing.Ifsuchadditionalpropertiesarerequired,theyshallbedeterminedinaccordancewiththetestmethodsspecifiedinpart2ofthisInternationalStandard,ifsuitable.5Inordertospecifyathermoplasticmaterialforaparticularapplicationortoensurereproducibleprocessing,additionalrequirementsmaybegivenindatablock5(seeclause3,firstparagraph).
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:16P.;A4
【正文语种】:英语