DIN 41539 Bb.1-1956 9脚微型管.诺瓦尔管.外部尺寸
时间:2024-05-08 21:41:00 来源: 标准资料网 作者：标准资料网 阅读：9270
【英文标准名称】:Miniaturepipeswith9pins;nine-pintubes,externaldimensions
【原文标准名称】:9脚微型管.诺瓦尔管.外部尺寸
【标准号】:DIN41539Bb.1-1956
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【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】:ASTME82-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:
【英文主题词】:backreflectionLaueX-ray;hyperbolicchart;metalcrystal;orientation;polarchart;standardprojection;X-raydiffraction;Back-reflectionLauemethod;Crystallographiccharacteristics;Lauemethod;Metalcrystals;Nondestructiveevaluation(NDE)
【摘要】:Metalsandothermaterialsarenotalwaysisotropicintheirphysicalproperties.Forexample,Young''smoduluswillvaryindifferentcrystallographicdirections.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.Thex201C;orientationofametalcrystalx201D;isknownwhenthepositionsinspaceofthecrystallographicaxesoftheunitcellhavebeenlocatedwithreferencetothesurfacegeometryofthecrystalspecimen.Thisrelationbetweenunitcellpositionandsurfacegeometryismostconvenientlyexpressedbystereographicorgnomonicprojection.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H10
【国际标准分类号】:77_040_99
【页数】:13P.;A4
【正文语种】:英语
【英文标准名称】:Testingofplasticsheetingandfilms;sampleandspecimenpreparationandconditioning
【原文标准名称】:塑料薄板和塑料薄膜的试验.样品和试样备制及状态调节
【标准号】:DIN16906-1989
【标准状态】:作废
【国别】:德国
【发布日期】:1989-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试样;塑料薄膜;定义;试验;抽样方法;试样制备;样本;塑料;箔
【英文主题词】:Definition;Definitions;Foil;Plasticfilms;Plasticsheets;Plastics;Samples;Samplingmethods;Specimenpreparation;Testspecimens;Testing
【摘要】:Thisstandardspecifiesthesamplingandconditioningofsampleandspecimenofplasticfilmsandplasticsheets.
【中国标准分类号】:G33
【国际标准分类号】:83_140_10
【页数】:2P.;A4
【正文语种】:德语