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【英文标准名称】:Plastics;celluloseacetate;determinationofviscositylossonmoulding
【原文标准名称】:塑料乙酸纤维素模塑时粘度降低的测定
【标准号】:ISO1599-1990
【标准状态】:现行
【国别】:国际
【发布日期】:1990-12
【实施或试行日期】:1990-12-01
【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】:乙酸纤维素;纤维素衍生物;试验;粘度;模制材料;塑料
【英文主题词】:Brittleness;Bushings;Celluloseacetate;Cellulosederivatives;Determination;Determinationofcontent;Dimensions;Drymatter;Instruments;Mathematicalcalculations;Mouldings(shapedsection);Plastics;Reagents;Shape;Shaping;Solidmatter;Strain;Testequipment;Testresults;Testing;Tests;Viscosity;Viscositychanges
【摘要】:Thismethodissuitableforcelluloseacetatewhichdoesnotcontainadditives,fillers,etc.whichmayinterferewiththedeterminationofviscosity.Itissuitableforcelluloseacetatehavinganaceticacidyieldabove50%.Celluloseacetateplasticizedwithdimethylphthalateismouldedunderspecifiedconditionsoftemperature,pressureandtime.Aftercooling,themouldingisgroundup.TheviscosityratioofthegroundmaterialfromthemouldingandalsothatoftheoriginalcelluloseacetatematerialaredeterminedinaccordancewithISO1157.Thepercentageviscositylossiscalculatedfromthevaluesofviscositybeforeandaftermoulding.ThissecondeditioncancelsandreplacesthefirsteditionISO1599:1975.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:4P.;A4
【正文语种】:英语