Product Code:SAE AS125851
Title:Plug - Pipe, Steel, Countersunk Hex
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:No scope available【英文标准名称】:Plastics-Styrene/acrylonitrile(SAN)copolymermouldingandextrusionmaterials-Designationsystemandbasisforspecifications
【原文标准名称】:塑料.苯乙烯/丙烯腈(SAN)共聚物的模塑和挤塑材料.名称与符号系统和规范基础
【标准号】:BSENISO4894-1-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1997-10-15
【实施或试行日期】:1997-10-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:高聚物;挤压;苯乙烯;丙烯腈;软化点;名称与符号;分类系统;塑料;粘度;热塑性聚合物;模制
【英文主题词】:Acrylonitrile;Basis;Classificationsystems;Copolymers;Definition;Definitions;Designationsystems;Designations;Encoding;Extruding;Materials;Mouldingmaterials;Mouldings(shapedsection);Plastics;Polymers;Polystyrene;Properties;Specification;Specification(approval);Styrene;Styreneacrylonitrile;Thermoplasticpolymers
【摘要】:1ThispartofISO4894establishesasystemofdesignationforstyrene/acrylonitrilethermoplasticmaterial,whichmaybeusedasthebasisforspecifications.2Thetypesofstyrene/acrylonitrileplasticaredifferentiatedfromeachotherbyaclassificationsystembasedonappropriatelevelsofthedesignatorypropertiesa)Vicatsofteningtemperatureb)meltflowrateandoninformationaboutbasicpolymerparameters,intendedapplicationand/ormethodofprocessing,importantproperties,additives,colourants,fillersandreinforcingmaterials.3ThispartofISO4894isapplicabletoallcopolymersofstyreneand/orsubstitutedstyrenehavingbetween10%(m/m)and50%(m/m)acrylonitrile.Itappliestomaterialsreadyfornormaluseandtomaterialsunmodifiedormodifiedbycolourants,additives,fillers,etc.4Itisnotintendedtoimplythatmaterialshavingthesamedesignationgivenecessarilythesameperformance.ThispartofISO4894doesnotprovideengineeringdata,performancedataordataonprocessingconditionswhichmayberequiredtospecifyamaterialforaparticularapplicationand/ormethodofprocessing.Ifsuchadditionalpropertiesarerequired,theyshallbedeterminedinaccordancewiththetestmethodsspecifiedinpart2ofthisInternationalStandard,ifsuitable.5Inordertospecifyathermoplasticmaterialforaparticularapplicationortoensurereproducibleprocessing,additionalrequirementsmaybegivenindatablock5(seeclause3,introductoryparagraph).
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:14P.;A4
【正文语种】:英语