ANSI/ASTM D1238-2001 挤压式塑性计测试热塑性塑料流速的方法(08.01)

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【英文标准名称】:FlowRateofThermoplasticsbyExtrusionPlastometer,TestMethodfor(08.01)
【原文标准名称】:挤压式塑性计测试热塑性塑料流速的方法(08.01)
【标准号】:ANSI/ASTMD1238-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:流量率;塑料;试验
【英文主题词】:plastics;testing;flowrates
【摘要】:Thistestmethodcoversmeasurementoftherateofextrusionofmoltenresinsthroughadieofaspecifiedlengthanddiameterunderprescribedconditionsoftemperature,load,andpistonpositioninthebarrelasthetimedmeasurementisbeingmade.ProcedureAisamanualcutoffoperationbasedontimeusedformaterialshavingflowratesthatfallgenerallybetween0.15and50g/10min.ProcedureBisanautomaticallytimedflowratemeasurementusedformaterialshavingflowsfrom0.50to900g/10min.Bybothprocedures,thepistontravelisgenerallythesameduringthetimedmeasurement;thepistonfootisabout46and20.6mmabovethedie.Comparableflowrateshavebeenobtainedbytheseproceduresininterlaboratoryround-robinmeasurementsofseveralmaterialsdescribedin12.1.Provisionismadeforcalculationofmeltvolume-flowrateaswellasmeltmass-flowrate.Note1-Round-robintestingindicatesthistestmethodmaybesuitableatflowratesupto1500g/10minifthetimingclockresolvestheelapsedtimetothenearest0.01s.Note2-ThistestmethodandISO1133-1991aretechnicallyequivalent.Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninNote10,Note26,andNote29.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:
【正文语种】:英语