【英文标准名称】:StandardPracticeforCarbonBlack&8212;CalculationofProcessIndexesFromanAnalysisofProcessControlData
【原文标准名称】:炭黑的标准实施规程.从工艺控制数据的分析中计算工艺指数
【标准号】:ASTMD4583-1995(2004)
【标准状态】:现行
【国别】:
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D24.61
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:生产控制;数学计算;分析;炭黑;天然橡胶;工艺;橡胶;制造;合成橡胶
【英文主题词】:carbonblack;Cpindex;Cpkindex;movingrange;processcapability;processcapabilityfromtestdata;processcontrol
【摘要】:Thispracticewillprovidethefollowing:(1)astatisticalsummaryofindividualproductionrundataplottedonacontrolchart;(2)astatisticalsummaryofdatafrommultipleproductionruns;(3)aproceduretorelatetheaverageandvariationofthesedatagroupstospecificationlimits,and(4)indexesforcomparingdifferentmanufacturingunitsforprojectingfuturecapabilitiesorashistoricalreference.1.1Thispracticecovers(1)astatisticalprocedureforanalyzingthetestdatageneratedinthestatisticalprocesscontrolofacarbonblackmanufacturingprocess;(2)aformatforreportingprocesscapabilitydeterminedfromtheanalysisofcontrolchartdataofanindividualproductionrun,and(3)aformatforreportingprocessperformancedeterminedfromtheanalysisofcontrolchartdataofanindividualproductionrun.1.2Thispracticespecificallyappliestotheanalysisofpelletedcarbonblacksamplestakenduringthemanufacturingprocesspriortostorage.Thispracticedoesnotapplytoshipmentsamplestakenfromhoppercarsorothercontainersorpackages.1.3ThispracticeisspecificallydesignedtobeusedforthosetestmethodsgiveninClassificationD1765whichspecifytargetvalues.However,thesetechniquesareapplicabletoothertestmethodsoncarbonblack.1.4Thispracticedescribesthecalculationfortwomethodsofdeterminingcapabilityfactorsfromananalysisofprocesscontroldata.1.4.1Processcapability(Cp)isameasurementofvariationcalculatedfromtheprocesscontrolchartdatawiththeuseofanestimatedstandarddeviation(963;)fromthemeanvalueofthemovingrange(R)chart.Thecalculationoftheprocesscapability(CpandCpk)indexescanbeusedashistoricalinformationortopredictfutureperformanceoftheprocess,butareonlyvalidwhentheprocessisinastateofstatisticalcontrol.1.4.2Processperformance(Pp)isameasurementofvariationcalculatedfromtheprocesscontrolchartdatausingsamplestandarddeviation(s).Thecalculationoftheprocessperformance(PpandPpk)indexesareusedforahistoricalreferenceofaprocess'performanceanddoesnotrequireastateofstatisticalcontrol.
【中国标准分类号】:G49
【国际标准分类号】:83_040_20
【页数】:4P.;A4
【正文语种】: