HG/T 3569-2001 成色剂光吸收的测定
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来源:标准资料网
基本信息
标准名称: | 成色剂光吸收的测定 |
英文名称: | Determination of light absorption for couplers |
中标分类: |
化工 >>
其他化工产品 >>
其他化工产品综合 |
ICS分类: |
|
替代情况: | HG/T 3569-1990(原标准号ZB G85006-1990) |
发布日期: | 2002-01-24 |
实施日期: | 2002-07-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 3页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
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所属分类: 化工 其他化工产品 其他化工产品综合
【英文标准名称】:StandardPracticeforProcessandMeasurementCapabilityIndices
【原文标准名称】:能力指数处理和测量的标准实施规程
【标准号】:ASTME2281-2008a
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E11.30
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:long-termvariability;processcapability;processcapabilityindices;processperformance;processperformanceindices;short-termvariability;Capabilityindices;Long-termvariability;Observation/observedvalues;Performance--laboratoryinstrumen
【摘要】:ProcessCapability8212;Processcapabilitycanbedefinedasthenaturalorinherentbehaviorofastableprocessthatisinastateofstatisticalcontrol(1).Ax201C;stateofstatisticalcontrolx201D;isachievedwhentheprocessexhibitsnodetectablepatternsortrends,suchthatthevariationseeninthedataisbelievedtoberandomandinherenttotheprocess.Processcapabilityislinkedtotheuseofcontrolchartsandthestateofstatisticalcontrol.Aprocessmustbestudiedtoevaluateitsstateofcontrolbeforeevaluatingprocesscapability.ProcessControl8212;Therearemanywaystoimplementcontrolcharts,butthemostpopularchoiceistoachieveastateofstatisticalcontrolfortheprocessunderstudy.Specialcausesareidentifiedbyasetofrulesbasedonprobabilitytheory.Theprocessisinvestigatedwheneverthechartsignalstheoccurrenceofspecialcauses.Takingappropriateactionstoeliminateidentifiedspecialcausesandpreventingtheirreappearancewillultimatelyobtainastateofstatisticalcontrol.Inthisstate,aminimumlevelofvariationmaybereached,whichisreferredtoascommoncauseorinherentvariation.Forthepurposeofthisstandard,thisvariationisameasureoftheuniformityofprocessoutput,typicallyaproductcharacteristic.ProcessCapabilityIndices8212;Thebehaviorofaprocess(asrelatedtoinherentvariability)inthestateofstatisticalcontrolisusedtodescribeitscapability.Tocompareaprocesswithcustomerrequirements(orspecifications),itiscommonpracticetothinkofcapabilityintermsoftheproportionoftheprocessoutputthatiswithinproductspecificationsortolerances.Themetricofthisproportionisthepercentageoftheprocessspreadusedupbythespecification.Thiscomparisonbecomestheessenceofallprocesscapabilitymeasures.Themannerinwhichthesemeasuresarecalculateddefinesthedifferenttypesofcapabilityindicesandtheiruse.Twoprocesscapabilityindicesaredefinedin5.2and5.3.Inpractice,theseindicesareusedtodriveprocessimprovementthroughcontinuousimprovementefforts.Theseindicesmaybeusedtoidentifytheneedformanagementactionsrequiredtoreducecommoncausevariation,compareproductsfromdifferentsources,andtocompareprocesses.ProcessPerformanceIndices8212;Whenaprocessisnotinastateofstatisticalcontrol,theprocessissubjecttospecialcausevariation,whichcanmanifestitselfinvariouswaysontheprocessvariability.Specialcausescangiverisetochangesintheshort-termvariabilityoftheprocessorcancauselong-termshiftsordriftsoftheprocessmean.Specialcausescanalsocreatetransientshiftsorspikesintheprocessmean.Eveninsuchcases,theremaybeaneedtoassessthelong-termvariabilityoftheprocessagainstcustomerspecificationsusingprocessperformanceindices,whicharedefinedin6.2and6.3.Theseindicesaresimilartothoseforcapabilityindicesanddifferonlyintheestimateofvariabilityusedinthecalculation.Thisestimatedvariabilityincludesadditionalcomponentsofvariationduetospecialcauses.Sinceprocessperformanceindiceshaveadditionalcomponentsofvariation,processperformanceusuallyhasawiderspreadthantheprocesscapabilityspread.Thesemeasuresareusefulindeterminingtheroleofmeasurementandsamplingvariabilitywhencomparedtoproductuniformity.1.1Thispracticeprovidesguidancefortheuseofcapabilityindicesforevaluatingprocesscapabilityandperformance.Processcapabilityindicescomparethevariabil......
【中国标准分类号】:N04
【国际标准分类号】:25_040_40
【页数】:8P.;A4
【正文语种】:英语
基本信息
标准名称: | 出口畜产品炭疽杆菌检验方法 |
中标分类: |
食品 >>
食品综合 >>
卫生、安全、劳动保护 |
发布日期: | |
实施日期: | 1989-07-01 |
首发日期: | |
作废日期: | |
出版日期: | |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类: 食品 食品综合 卫生 安全 劳动保护