BS EN 1243-2011 粘合剂.氨基和酰氨基甲醛冷凝剂中游离甲醛的测定
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【英文标准名称】:Adhesives.Determinationoffreeformaldehydeinaminoandamidoformaldehydecondensates
【原文标准名称】:粘合剂.氨基和酰氨基甲醛冷凝剂中游离甲醛的测定
【标准号】:BSEN1243-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-05-31
【实施或试行日期】:2011-05-31
【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】:
【英文主题词】:Adhesives;Amidocompound;Aminocompounds;Chemicalanalysisandtesting;Chemicalreactions;Condensates;Condensation;Definitions;Determination;Determinationofcontent;Formaldehyde;Laboratorytesting;Materials;Materialstesting;Mathematicalcalculations;Reagents;Testequipment;Testspecimens;Testing
【摘要】:ThisEuropeanStandardspecifiesamethodforthedeterminationofthefreeformaldehydecontentinaminoandamido-formaldehydecondensateadhesives.
【中国标准分类号】:G38
【国际标准分类号】:83_180
【页数】:10P.;A4
【正文语种】:英语
【英文标准名称】:Practiceforuseofadichromatedosimetrysystem
【原文标准名称】:重铬酸盐剂量测定系统的使用规程
【标准号】:BSISO15561-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-09-15
【实施或试行日期】:1999-09-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:剂量测定;电离辐射;重铬酸盐;核辐射;定义;辐射测量;γ辐射;辐射剂量;电子束;X射线
【英文主题词】:Definition;Definitions;Dichromates;Dosimetry;Electronbeams;Gamma-radiation;Ionizingradiation;Nuclearradiation;Radiationdose;Radiationmeasurement;X-rays
【摘要】:1Thispracticecoversthepreparation,testing,andprocedureforusingtheacidicaqueoussilverdichromatedosimetrysystemtomeasureabsorbeddoseinwaterwhenexposedtoionizingradiation.Thesystemconsistsofadosimeterandappropriateanalyticalinstrumentation.Forsimplicity,thesystemwillbereferredtoasthedichromatesystem.Itisclassifiedasareferencestandarddosimetrysystem(seeGuideE1261).2Thispracticedescribesthespectrophotometricanal-ysisproceduresforthedichromatesystem.3Thispracticeappliesonlytoγ-rays,x-rays,andhighenergyelectrons.4Thispracticeappliesprovidedthefollowingcondi-tionsaresatisfied:4.1Theabsorbeddoserangeisfrom2×10to5×10Gy.4.2Theabsorbeddoseratedoesnotexceed600Gy/pulsewithapulserepetitionratenottoexceed12.5Hz,ordoesnotexceedanequivalentdoserateof7.5kGy/sfromcontinuoussources(1).4.3Forradionuclidegamma-raysources,theinitialphotonenergyshallbegreaterthan0.6MeV.Forbremsstrahlungphotons,theinitialenergyoftheelectronsusedtoproducethebremsstrahlungphotonsshallbeequaltoorgreaterthan2MeV.Forelectronbeams,theinitialelectronenergyshallbegreaterthan8MeV.Note1—Thelowerenergylimitsgivenareappropriateforacylindricaldosimeterampouleof12mmdiameter.Correctionsfordisplacementeffectsanddosegradientacrosstheampoulemayberequiredforelectronbeams(2).Thedichromatesystemmaybeusedatlowerenergiesbyemployingthinner(inthebeamdirection)dosimetercontainers(seeICRUReport35).4.4Theirradiationtemperatureofthedosimetershallbeabove0℃andshouldbebelow80℃.Note2—Thetemperaturecoefficientofdosimeterresponseisknownonlyintherangeof5℃to50℃(see10.1.8).Useoutsidethisrangeisnotrecommended.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionarystatementsaregiveninNote6.
【中国标准分类号】:F81
【国际标准分类号】:17_240
【页数】:14P;A4
【正文语种】:英语
【英文标准名称】:Specificationforhexagonsocketscrewsandwrenchkeys-Inchseries
【原文标准名称】:六角凹头螺钉和套筒扳手规范.英制系列
【标准号】:BS2470-1973
【标准状态】:现行
【国别】:英国
【发布日期】:1973-06-15
【实施或试行日期】:1973-06-15
【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】:外螺纹紧固件;定位螺钉;长度;直径;英国细牙标准螺纹;量值;统一螺纹;帽罩头紧固件;G-系列螺纹;材料的机械性能;管套扳手;螺纹紧固件;扳手;凹头紧固件;合金钢;英制;六角形;埋头紧固件;手工工具;螺钉;尺寸;尺寸;惠氏螺纹;英国标准螺纹
【英文主题词】:threadedfasteners;dimensions;length;imperialsystem;countersunkfasteners;external-threadfasteners;socketwrenches;whitworthscrewthreads;diameter;mechanicalpropertiesofmaterials;hexagonalshape;cap-headfasteners;bsfscrewthreads;g-seriesscrewthreads;handtools;screws(bolts);unifiedscrewthreads;size;setscrews;britishassociationscrewthreads;socket-headfasteners;wrenches;alloysteels
【摘要】:Specifiesdimensions,tolerancesandgeneralrequirementsforcapscrews,countersunk-headscrews,button-headscrewsandshoulderscrews(stripperbolts)andsetscrews,alsotheirmechanicalpropertiesandnominallengthincrements.Dimensionsandrequirementsforwrenchkeysarealsogiven.
【中国标准分类号】:J47
【国际标准分类号】:21_060_10
【页数】:36P.;A4
【正文语种】:英语