【英文标准名称】:Samplingproceduresforinspectionbyvariables-Guidetosinglesamplingplansindexedbyacceptancequalitylimit(AQL)forlot-by-lotinspectionforasinglequalitycharacteristicandasingleAQL
【原文标准名称】:计数抽样检验程序.对单个质量特性和单个可接受质量界限(AQL)用逐批检验AQL检索的单个抽样计划指南
【标准号】:BS6002-1-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-02-28
【实施或试行日期】:2007-02-28
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:接受检验;控制图;检验;计量检查;数学计算;正态分布;功率谱;质量保证;质量控制;抽样方法;抽样表;标准偏差;统计质量控制
【英文主题词】:Acceptanceinspection;Controlcharts;Inspection;Inspectionbyvariables;Mathematicalcalculations;Normaldistribution;Powerspectra;Qualityassurance;Qualitycontrol;Samplingmethods;Samplingtables;Standarddeviation;Statisticalqualitycontrol
【摘要】:ThisBritishStandarddescribesanacceptancesamplingsystemprimarilydesignedforuseunderthefollowingconditions:a)wheretheinspectionprocedureistobeappliedtoacontinuingseriesoflotsofdiscreteproductsallsuppliedbyoneproducerusingoneproductionprocess;b)whereonlyasinglequalitycharacteristicxoftheseproductsistakenintoconsideration,whichmustbemeasurableonacontinuousscale;c)wherethemeasurementerrorisnegligible,i.e.withastandarddeviationnomorethan10%oftheprocessstandarddeviation;d)whereproductionisstable(understatisticalcontrol)andthequalitycharacteristicxisdistributedaccordingtoanormaldistributionoracloseapproximationtothenormaldistribution;e)whereacontractorstandarddefinesalowerspecificationlimitL,anupperspecificationlimitU,orboth;anitemisqualifiedasconformingifandonlyifitsmeasuredqualitycharacteristicxsatisfiestheappropriateoneofthefollowinginequalities:1)xWL(i.e.thelowerspecificationlimitisnotviolated);2)xuU(i.e.theupperspecificationlimitisnotviolated);3)xWLandxuU(i.e.neitherthelowernortheupperspecificationlimitisviolated).Inequalities1)and2)arecalledcaseswithasinglespecificationlimit,and3)acasewithdoublespecificationlimits.Wheredoublespecificationlimitsapply,itisassumedinthisBritishStandardthatconformancetobothspecificationlimitsisequallyimportanttotheintegrityoftheproduct;insuchcases,itisappropriatetoapplyasingleAQLtothecombinedpercentageofproductoutsidethetwospecificationlimits.Thisisreferredtoascombinedcontrol.
【中国标准分类号】:A41
【国际标准分类号】:03_120_30
【页数】:118P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforDicumylPeroxide,Assay(LiquidChromatography)
【原文标准名称】:用液体色谱法作过氧化二异丙苯化验的测试方法
【标准号】:ASTME755-1994(2003)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:E15.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:分析;药液;检定;液相色谱法;过氧化物
【英文主题词】:assay;dicumylperoxide;HPLC;liquidchromatography;peroxides
【摘要】:Thistestmethodprovidesameansfordeterminingthepercentofdicumylperoxideintechnicalandrefinedgradesofthismaterial.Thistestmethodisspecificfordicumylperoxide.Nointerferenceisencounteredfromdimethylbenzylalcohol,acetophenone,orotherminorimpuritiesnormallyassociatedwithcommercialdicumylperoxide.1.1Thistestmethodcoverstheassayofdicumylperoxideincommerciallyavailablerefinedgradesofdicumylperoxide.Technicalgradescanalsobeassayed,providedthatimpuritiesthatinterferechromatographicallyareabsent(seeNote1).Thesematerialsnominallycontainapproximately99and92%ofdicumylperoxide,respectively.Note18212;Intheassayoftechnicalgradedicumylperoxide,errorsarepossibleiftheproductcontainsanimpuritythateluteswiththesameretentiontimeastheinternalstandard.Achromatogramobtainedunderthetestconditionsminustheinternalstandardwilldeterminewhetheraninterferencesituationexistsintheassayofaparticulartechnicalgradeproduct.Ifanimpurityisnoted,anditsretentiontimeisslightlydifferentfromthatoftheinternalstandard,theinterferencecanoftenbeeliminatedbytheuseofacolumnknowntohaveahighplatecount.1.2Reviewthecurrentmaterialsafetydatasheets(MSDS)fordetailedinformationconcerningtoxicity,firstaidprocedures,andsafetyprecautions.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection7.
【中国标准分类号】:G17
【国际标准分类号】:71_080_99
【页数】:4P.;A4
【正文语种】: