BS EN ISO 182-3-2001 塑料.化合物和氯乙烯共聚物、均聚物在高温下分解出氯化氢和其他酸性物质的趋势测定.电导测量法
作者:标准资料网 时间:2024-05-13 04:04:46 浏览:8894
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Plastics-Determinationofthetendencyofcompoundsandproductsbasedonvinylchloridehomopolymersandcopolymerstoevolvehydrogenchlorideandanyotheracidicproductsatelevatedtemperatures-Conductometricmethod
【原文标准名称】:塑料.化合物和氯乙烯共聚物、均聚物在高温下分解出氯化氢和其他酸性物质的趋势测定.电导测量法
【标准号】:BSENISO182-3-2001
【标准状态】:作废
【国别】:英国
【发布日期】:2001-02-15
【实施或试行日期】:2001-02-15
【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;氯乙烯;电导测量法;高温试验;电解分析法;降解;均聚物;酸;塑料;质量控制;热稳定性;高聚物;共聚物;氯化氢;热试验;分解反应;聚氯乙烯
【英文主题词】:Chemicalreactions;Conductimetricmethods;Conductivity;Copolymers;Decomposition;Definition;Definitions;Determination;High-temperaturetesting;Homopolymers;Hydrogenchloride;Mouldings(shapedsection);Plastics;Plasticsproducts;Polymers;Polyvinylchloride;Qualitycontrol;Stability;Testing;Thermalpropertiesofmaterials;Thermalstability;Thermaltesting;Vinylchloride
【摘要】:ThispartofISO182specifiesamethodforthedeterminationofthethermalstabilityatelevatedtemperatureofcompoundsandproductsbasedonvinylchloridehomopolymersandcopolymers(inthefollowingtextabbreviatedasPVC)whichundergodehydrochlorination(theevolutionofhydrogenchlor-ide).2ThemethodmaybeusedasaqualitycontroltestduringmanufactureandconversionofPVCcom-pounds.ItmayalsobeusedforthecharacterizationofPVCcompoundsandproducts,especiallywithre-gardtotheeffectivenessoftheirheat-stabilizingsys-tems.ItissuitableforcolouredPVCcompoundsandprod-uctswhereadiscolourationtestundertheactionofheatmaybeunsatisfactory.3ThemethodisrecommendedforcompoundedPVCmaterialsandproductsonly,althoughitcanbeusedforpolymersinpowderformunderappropriateconditions,tobeagreeduponbetweentheinterestedparties.ThemethodisnotrecommendedforPVCcompoundsintheformofdryblends,sincesuchmaterialsmaynotbesufficientlyhomogeneous.4PVCcompoundsandproductsmayevolveotherdecompositionproducts,inadditiontohydrogenchloride,atelevatedtemperatures.Alimitednumberofthesedecompositionproductsmayaffectthecon-ductivityofwaterwhentheyareabsorbedintoit.CompensationforthiseffectisnotwithinthescopeofthispartofISO182,andthereforecareisnecess-aryinattemptingtocompareresultsfordissimilarcompoundsandproducts.Inthiscaseamethodsuit-ableforthedeterminationofchlorideion(Cl)intheabsorbingsolutionshallbeused(seeISO182-4).5Themethodmayalsobeappliedtootherplas-ticsmaterialswhichcanevolvehydrogenchlorideorotherhydrogenhalideswhenheatedunderthecon-ditionsprescribedbytherelevantspecifications,orasagreeduponbetweentheinterestedparties.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:22P;A4
【正文语种】:英语
【原文标准名称】:塑料.化合物和氯乙烯共聚物、均聚物在高温下分解出氯化氢和其他酸性物质的趋势测定.电导测量法
【标准号】:BSENISO182-3-2001
【标准状态】:作废
【国别】:英国
【发布日期】:2001-02-15
【实施或试行日期】:2001-02-15
【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;氯乙烯;电导测量法;高温试验;电解分析法;降解;均聚物;酸;塑料;质量控制;热稳定性;高聚物;共聚物;氯化氢;热试验;分解反应;聚氯乙烯
【英文主题词】:Chemicalreactions;Conductimetricmethods;Conductivity;Copolymers;Decomposition;Definition;Definitions;Determination;High-temperaturetesting;Homopolymers;Hydrogenchloride;Mouldings(shapedsection);Plastics;Plasticsproducts;Polymers;Polyvinylchloride;Qualitycontrol;Stability;Testing;Thermalpropertiesofmaterials;Thermalstability;Thermaltesting;Vinylchloride
【摘要】:ThispartofISO182specifiesamethodforthedeterminationofthethermalstabilityatelevatedtemperatureofcompoundsandproductsbasedonvinylchloridehomopolymersandcopolymers(inthefollowingtextabbreviatedasPVC)whichundergodehydrochlorination(theevolutionofhydrogenchlor-ide).2ThemethodmaybeusedasaqualitycontroltestduringmanufactureandconversionofPVCcom-pounds.ItmayalsobeusedforthecharacterizationofPVCcompoundsandproducts,especiallywithre-gardtotheeffectivenessoftheirheat-stabilizingsys-tems.ItissuitableforcolouredPVCcompoundsandprod-uctswhereadiscolourationtestundertheactionofheatmaybeunsatisfactory.3ThemethodisrecommendedforcompoundedPVCmaterialsandproductsonly,althoughitcanbeusedforpolymersinpowderformunderappropriateconditions,tobeagreeduponbetweentheinterestedparties.ThemethodisnotrecommendedforPVCcompoundsintheformofdryblends,sincesuchmaterialsmaynotbesufficientlyhomogeneous.4PVCcompoundsandproductsmayevolveotherdecompositionproducts,inadditiontohydrogenchloride,atelevatedtemperatures.Alimitednumberofthesedecompositionproductsmayaffectthecon-ductivityofwaterwhentheyareabsorbedintoit.CompensationforthiseffectisnotwithinthescopeofthispartofISO182,andthereforecareisnecess-aryinattemptingtocompareresultsfordissimilarcompoundsandproducts.Inthiscaseamethodsuit-ableforthedeterminationofchlorideion(Cl)intheabsorbingsolutionshallbeused(seeISO182-4).5Themethodmayalsobeappliedtootherplas-ticsmaterialswhichcanevolvehydrogenchlorideorotherhydrogenhalideswhenheatedunderthecon-ditionsprescribedbytherelevantspecifications,orasagreeduponbetweentheinterestedparties.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:22P;A4
【正文语种】:英语
下载地址: 点击此处下载