BS 5277-1976 门.门扇总平直度缺陷测量
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来源:标准资料网
【英文标准名称】:Doors-Measurementofdefectsofgeneralflatnessofdoorleaves
【原文标准名称】:门.门扇总平直度缺陷测量
【标准号】:BS5277-1976
【标准状态】:现行
【国别】:英国
【发布日期】:1976-03-31
【实施或试行日期】:1976-03-31
【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】:平整度;缺陷与故障;门;平面度测量
【英文主题词】:Components;Constructionsystemsparts;Dimensions;Doorleaves;Doors;Finishes;Flatnessmeasurement;Flatness(surface);Measurement;Precision;Properties;Testing
【摘要】:Determinesmethodtousetomeasuretwistandbending.
【中国标准分类号】:Q70
【国际标准分类号】:91_060_50
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:PrivateIntegratedServicesNetwork(PISN)-MappingfunctionsforthetunnellingofQSIGthroughH.323networks(EndorsementofISO/IEC23290(2002),modified)(EndorsementoftheEnglishversionEN302037V1.1.1(2003-05)asGermanstandard)
【原文标准名称】:专用综合业务网.经由H.323网络的QSIG的隧穿用映像功能
【标准号】:EN302037-2003
【标准状态】:现行
【国别】:
【发布日期】:2003-12
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:通信网;补充业务;网络互连;PINX;QSIG;信息交换;专业综合业务网;电信设备;信号传输;信息技术;电缆敷设;电信;远程通信;电路网络;绘制地图
【英文主题词】:Cablelaying;Circuitnetworks;Communicationnetworks;Communicationservice;Informationinterchange;Informationtechnology;Mapping;Networkinterconnection;PINX;PISN;QSIG;Signaltransmission;Supplementaryservices;Telecommunication;Telecommunications
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_040_35
【页数】:1P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminingtheOrientationofaMetalCrystal
【原文标准名称】:测定金属晶体取向的标准试验方法
【标准号】:ASTME82-1991(2007)
【标准状态】:现行
【国别】:
【发布日期】:1991
【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】:E04.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:晶体;金属;方位;试验;测定
【英文主题词】:backreflectionLaueX-ray;hyperbolicchart;metalcrystal;orientation;polarchart;standardprojection;X-raydiffraction
【摘要】:Metalsandothermaterialsarenotalwaysisotropicintheirphysicalproperties.Forexample,Young’moduluswillvaryindifferentcrystallographicdirections.Therefore,itisdesirableornecessarytodeterminetheorientationofasinglecrystalundergoingtestsinordertoascertaintherelationofanypropertytodifferentdirectionsinthematerial.Thistestmethodcanbeusedcommerciallyasaqualitycontroltestinproductionsituationswhereadesiredorientation,withinprescribedlimits,isrequired.Withtheuseofanadjustablefixedholderthatcanlaterbemountedonasaw,lathe,orothermachine,asinglecrystalmaterialcanbemovedtoapreferredorientation,andsubsequentlysectioned,ground,orprocessedotherwise.Ifgrainsofapolycrystallinematerialarelargeenough,thistestmethodcanbeusedtodeterminetheirorientationsanddifferencesinorientation.1.1Thistestmethodcoverstheback-reflectionLaueprocedurefordeterminingtheorientationofametalcrystal.Theback-reflectionLauemethodfordeterminingcrystalorientation(1,2)maybeappliedtomacrograins(3)(0.5-mmdiameterorlarger)withinpolycrystallineaggregates,aswellastosinglecrystalsofanysize.Themethodisdescribedwithreferencetocubiccrystals;itcanbeappliedequallywelltohexagonal,tetragonal,ororthorhombiccrystals.1.2Mostnaturalcrystalshavewelldevelopedexternalfaces,andtheorientationofsuchcrystalscanusuallybedeterminedfrominspection.Theorientationofacrystalhavingpoorlydevelopedfaces,ornofacesatall(forexample,ametalcrystalpreparedinthelaboratory)mustbedeterminedbymoreelaboratemethods.ThemostconvenientandaccurateoftheseinvolvestheuseofX-raydiffraction.The"orientationofametalcrystal"isknownwhenthepositionsinspaceofthecrystallographicaxesoftheunitcellhavebeenlocatedwithreferencetothesurfacegeometryofthecrystalspecimen.Thisrelationbetweenunitcellpositionandsurfacegeometryismostconvenientlyexpressedbystereographicorgnomonicprojection.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H24
【国际标准分类号】:77_040_99
【页数】:13P.;A4
【正文语种】:
