BS 2000-346-1996 石油和石油产品试验方法.第102部分:未用的润滑基油和不含沥青烯的石油馏分物中多环芳香族环烃的测定.二甲硫析取物折射指数法
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【英文标准名称】:Methodsoftestforpetroleumanditsproducts-Determinationofpolycyclicaromaticsinunusedlubricatingbaseoilsandasphaltenefreepetroleumfractions-Dimethylsulphoxideextractionrefractiveindexmethod
【原文标准名称】:石油和石油产品试验方法.第102部分:未用的润滑基油和不含沥青烯的石油馏分物中多环芳香族环烃的测定.二甲硫析取物折射指数法
【标准号】:BS2000-346-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-07-15
【实施或试行日期】:1996-07-15
【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】:环状化合物;试样制备;浓度(化学);石油;芳族化合物;化学分析和测试;精密度;润滑油;含量测定;油;再现性;萃取分析法;折射指数;溶剂萃取方法;石油产品
【英文主题词】:cycliccompounds;specimenpreparation;concentration(chemical);petroleum;aromaticcompounds;chemicalanalysisandtesting;precision;lubricatingoils;determinationofcontent;oils;reproducibility;extractionmethodsofanalysis;refractiveindex;solventextractionmethods;petroleumproducts
【摘要】:IdenticalwithIP346/92(98).
【中国标准分类号】:E36
【国际标准分类号】:75_100
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:Ultrasonicnon-destructivetesting-Referenceblocksandtestproceduresforthecharacterizationofcontactsearchunitbeamprofiles
【原文标准名称】:超声无损检测接触式传感器光束轮廓特性的检测程序和基准块
【标准号】:ISO12715-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-08
【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/TC135
【标准类型】:()
【标准水平】:()
【中文主题词】:试验设备;校准块;超声检验;特性记述;无损检验;试验;测量技术;探头;外形;参考块
【英文主题词】:Calibrationblocks;Characterisations;Measuringtechniques;Non-destructivetesting;Probe;Profile;Referenceblocks;Testequipment;Testing;Ultrasonictesting
【摘要】:ThisInternationalstandardintroducestwometalreferenceblocks,thehemi-step(HS)andtheside-drilled-hole(SDH)blocks.ThisInternationalStandardestablishesproceduresformeasuringthesoundfieldorbeamprofilesproducedbysearchunitsincontacttests.Thesearchunitsincludestraightbeam,anglebeam(refractedcompressionalandrefractedshear),focusedbeamanddualelementsearchunits.Thediameterorthesidedimensionofthesearchunitshallbenogreaterthan25mm.ThemethodologyofthisInternationalStandardprovidesguidelinesforsearchunitstobeusedfordifferentmetalsincludingforgedorrolledsteel,aluminumortitaniumalloyproducts.ThefrequencyrangeofthesearchunitsusedinthisInternationalStandardextendsfrom1MHzto15MHz,where1MHzto5MHzisbestsuitedforsteelsand5MHzto15MHzisbestforfinegrainstructuredalloyssuchasaluminumproducts.IfthisInternationalStandardistobeusedformaterialotherthansteels,usersshouldbeawareofthefactthatthewavevelocitiesinthesematerialsmaybedifferentfromthatofsteelsandtheanglebeamsearchunitsarenormallydesignedbasedonthesteelapplications.Snell'slawofrefractionisdescribedinthisInternationalStandardsothatcorrectrefractionanglesinothermaterialscanbecalculated.ThisInternationalStandardappliestoanglebeamsearchunitsofallpracticalangles(0°to70°,andtofocusedanddualelementsearchunits.ThisInternationalStandarddoesnotaddresstheuseofsurface(Rayleigh)wavesearchunits.TheproceduresinthisInternationalStandardcanbeusedinwhole,orinpart,withotherstandards.Fortestingmaterialswhichareverythickorverythin,thepresentreferenceblocksmaybemadeproportionallylargerorsmallertoaccommodatedifferentsearchunitbeamsizes.ThisInternationalStandarddoesnotaddresstheestimationofequivalentdefectsizeswhichwillrequirereferenceblockswithflat-bottom-holes.ThisInternationalStandardestablishesnoacceptancecriteria;butdoesestablishthetechnicalbasisforcriteriathatmaybedefinedbyuserparties.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:24P;A4
【正文语种】:英语
MIL-A-8243D, MILITARY SPECIFICATION ANTI-ICING AND DEICING-DEFROSTING FLUIDS (26 OCT 1985)., This specification covers the requirements for two types of anti-icing and deicing-defrosting fluids for use on aircraft.