BS 887-1982 精密游标卡尺规范
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【英文标准名称】:Specificationforprecisionverniercallipers
【原文标准名称】:精密游标卡尺规范
【标准号】:BS887-1982
【标准状态】:作废
【国别】:英国
【发布日期】:1982-07-30
【实施或试行日期】:1982-07-30
【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】:卡尺;精密度;游标卡尺;仪表刻度;尺寸;准确度;设计;游标的
【英文主题词】:Accuracy;Calipers(instruments);Design;Dimensions;Instrumentscales;Precision;Verniercalipers;Verniers
【摘要】:Calliperswithinternalandexternalmeasuringfacesupto1metrerangeor48in,verniergraduatedto0.02mmor0.001in.Nomenclature,construction,scales,accuracyprotection.Appendicescoverrecommendedsectionsofbeam,methodsoftestanduse.
【中国标准分类号】:J42
【国际标准分类号】:17_040_30
【页数】:14P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforTraceImpuritiesinMonocyclicAromaticHydrocarbonsbyGasChromatographyandExternalCalibration
【原文标准名称】:用气相色谱法和外部校准法对单环芳香烃中微量杂质的标准试验方法
【标准号】:ASTMD5917-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:D16.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:化工技术;芳烃;杂质;气相色谱法;测试
【英文主题词】:aromatics;externalstandard;gaschromatography;impurities;purity;toluene;xylenes
【摘要】:Determiningthetypeandamountofhydrocarbonimpuritiesremainingfromthemanufactureoftoluene,mixedxylenes,andp-xylenesusedaschemicalintermediatesandsolventsisoftenrequired.Thistestmethodissuitableforsettingspecificationsandforuseasaninternalqualitycontroltoolwheretheseproductsareproducedorareused.Typicalimpuritiesare:alkanescontaining1to10carbonsatoms,benzene,toluene,ethylbenzene(EB),xylenes,andaromatichydrocarbonscontainingninecarbonatoms.5.1.1RefertoTestMethodD2306fordeterminingtheC8aromatichydrocarbondistributioninmixedxylenes.Purityiscommonlyreportedbysubtractingthedeterminedexpectedimpuritiesfrom100.00.However,agaschromatographicanalysiscannotdetermineabsolutepurityifunknownorundetectedcomponentsarecontainedwithinthematerialbeingexamined.ThistestmethodissimilartoTestMethodD2360,however,interlaboratorytestinghasindicatedabiasmayexistbetweenthetwomethods.Thereforetheuseriscautionedthatthetwomethodsmaynotgivecomparableresults.1.1Thistestmethodcoversthedeterminationofthetotalnonaromatichydrocarbonsandtracemonocyclicaromatichydrocarbonsintoluene,mixedxylenes,andp-xylenesbygaschromatography.Thepurityoftoluene,mixedxylenes,orp-xylenescanalsobecalculated.Calibrationofthegaschromatographicsystemisdonebytheexternalstandardcalibrationtechnique.Asimilartestmethod,usingtheinternalstandardcalibrationtechnique,isTestMethodD2360.1.2Totalaliphatichydrocarbonscontaining1through10carbonatoms(methanethroughdecanes)canbedetectedbythistestmethodatconcentrationsrangingfrom0.001to2.500weight%.1.2.1Asmallamountofbenzeneinmixedxylenesorp-xylenesmaynotbedistinguishedfromthenonaromaticsandtheconcentrationsaredeterminedasacomposite(see6.1).1.3Monocyclicaromatichydrocarbonimpuritiescontaining6through10carbonatoms(benzenethroughC10aromatics)canbedetectedbythistestmethodatindividualconcentrationsrangingfrom0.001to1.000weight%.1.4Thefollowingappliestoallspecifiedlimitsinthistestmethod:forpurposesofdeterminingconformancewiththistestmethod,anobservedvalueoracalculatedvalueshallberoundedoff"tothenearestunit"inthelastright-handdigitusedinexpressingthespecificationlimit,inaccordancewiththerounding-offmethodofPracticeE29.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatement,seeSection9.
【中国标准分类号】:G17
【国际标准分类号】:71_040_50;71_080_15
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:Tolerancesforbuilding;Part6:Generalprinciplesforapprovalcriteria,controlofconformitywithdimensionaltolerancespecificationsandstatisticalcontrol;Method1
【原文标准名称】:建筑公差第6部分:验收标准及根据尺度公差规定和统计控制进行验收的一般原则方法1
【标准号】:ISO3443-6-1986
【标准状态】:现行
【国别】:国际
【发布日期】:1986-11
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC59
【标准类型】:()
【标准水平】:()
【中文主题词】:元部件;建筑物;建筑;组件;监督(认可);尺寸公差;验收检验;统计质量控制
【英文主题词】:Acceptanceinspection;Buildings;Components;Construction;Dimensionaltolerances;Statisticalqualitycontrol;Surveillance(approval)
【摘要】:Givesthegeneralprinciplesaccordingtowhichtolerancesshouldbespecifiedandtheapprovalcriteriaofgeometricalcharacteristicswhichresultfromanyoperationmadeinbuildingconstruction.Appliestoalltypesofform,dimensionsandpositionswithinthebuildingindustrywheretolerancesarespecified.
【中国标准分类号】:P04
【国际标准分类号】:91_010_30
【页数】:3P.;A4
【正文语种】:英语
