【英文标准名称】:Plasticspipingandductingsystems.Pipesandfittingsofunplasticizedpoly(vinylchloride)(PVC-U).Specimenpreparationfordeterminationoftheviscositynumberandcalculationofthek-value
【原文标准名称】:塑料管和管道系统.未增塑聚氯乙烯管道和配件.粘度系数测定和K值计算的样品准备
【标准号】:BSEN922-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-07-15
【实施或试行日期】:1995-07-15
【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】:化学分析和试验;粘度测量;乙烯基树脂;分离法(化学分析);未增塑聚氯乙烯;管道配件;塑料;聚氯乙烯;高聚物;试样制备;萃取分析法;管道工程系统;管
【英文主题词】:Chemicalanalysisandtesting;Determination;Extractionmethodsofanalysis;Fittings;kvalue;Methods;Pipefittings;Pipelines;Pipes;Pipeworksystems;Pipingsystem;Plasticpipelines;Plasticpipes;Plastics;Polymers;Polyvinylchloride;Protectivetubes;PVC-U;Resins;Separationmethods(chemicalanalysis);Specimenpreparation;Testing;Unplasticizedpolyvinylchloride;Vinylresins;Viscosity;Viscositymeasurement;Viscositynumbers
【摘要】:ThisEuropeanStandardspecifiesamethodfordeterminingtheviscositynumberandK-valueofapoly(vinylchloride)(PVC)resinderivedfromapipe,fittingorcompound.Inthisstandard,onlythemethodforisolationofthePVCresinisdetailed,whileforthedeterminationofviscositynumberreferenceismadetoISO174.AnequationforthecalculationofK-value(accordingtoFikentscher)fromviscositydataisgiven(K-valuescorrespondingtoaseriesofviscositynumbersforPVCresinaregivenforinformationinannexA).Thepresenceofotherpolymersmayinvalidatethemethod(seeclause3).
【中国标准分类号】:P94;G33
【国际标准分类号】:23_040_20;23_040_45
【页数】:12P.;A4
【正文语种】:英语