DIN 18082 T.1-1985 防火闸门.T30-1钢门.A型结构
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【英文标准名称】:Firebarriers-SteeldoorsT30-1-ConstructiontypeA
【原文标准名称】:防火闸门.T30-1钢门.A型结构
【标准号】:DIN18082T.1-1985
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Determinationoftheviscosityofpolymersindilutesolutionusingcapillaryviscometers-Part2:Poly(vinylchloride)resins
【原文标准名称】:用毛细管粘度计测定稀溶液中聚合物的粘度第2部分:聚氯乙烯树脂
【标准号】:ISO1628-2-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-12
【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/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;试验;树脂;粘度计;溶剂;稀释;粘度;高聚物;测量技术;测量;溶液;聚氯乙烯;塑料;测定
【英文主题词】:Determination;Dilution;Measurement;Measuringtechniques;Plastics;Polymers;Polyvinylchloride;Resins;Solutions;Solvents;Testing;Vinylchloride;Viscometers;Viscosity;Viscositynumbers
【摘要】:ThispartofISO1628specifiesconditionsforthedeterminationofthereducedviscosity(alsoknownasviscositynumber)andK-valueofPVCresins.Itisapplicabletoresinsinpowderformwhichconsistofhomopolymersofthemonomervinylchlorideandcopolymers,terpolymers,etc.,ofvinylchloridewithoneormoreothermonomers,butwherevinylchlorideisthemainconstituent.Theresinsmaycontainsmallamountsofunpolymerizedsubstances(e.g.emulsifyingorsuspendingagents,catalystresidues,etc.)andothersubstancesaddedduringthecourseofthepolymerization.ThispartofISO1628isnotapplicable,however,toresinshavingavolatile-mattercontentinexcessof0,5%±0,1%,whendeterminedinaccordancewithISO1269.Inadditiontothis,itisnotapplicabletoresinswhicharenotentirelysolubleincyclohexanone.ThereducedviscosityandK-valueofaparticularresinarerelatedtoitsmolecularmass,buttherelationshipvariesdependingontheconcentrationandtype(s)ofothermonomer(s)present.HencehomopolymersandcopolymershavingthesamereducedviscosityorK-valuemaynothavethesamemolecularmass.ThevaluesdeterminedforreducedviscosityandK-value,foraparticularsampleofPVCresin,areinfluenceddifferentlybytheconcentrationofthesolutionchosenforthedetermination.HencetheuseoftheproceduresdescribedinthispartofISO1628willonlygivevaluesforreducedviscosityandK-valuethatarecomparablewhentheconcentrationsofthesolutionsusedareidentical.LimitingviscositynumberisnotusedforPVCresins.TheexperimentalproceduresdescribedinthispartofISO1628canalsobeusedtocharacterizethepolymericfractionobtainedduringthechemicalanalysisofaPVCcomposition.However,thevaluescalculatedforthereducedviscosityandK-valueinthesecircumstancesmaynotindicatetheactualvaluesfortheresinusedtoproducethecompositionbecauseoftheimpurenatureoftherecoveredpolymerfraction.
【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
【英文标准名称】:RefinedPhenol
【原文标准名称】:精炼苯酚
【标准号】:ASTMD2439-1991
【标准状态】:作废
【国别】:美国
【发布日期】:1991
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:芳族化合物;苯酚;溶剂;油性涂料;芳烃;涂料
【英文主题词】:aromatichydrocarbons;phenol;aromaticcompounds;solvents;paints;oilpaints
【摘要】:
【中国标准分类号】:G17
【国际标准分类号】:71_080_90
【页数】:1P;A4
【正文语种】:英语
