BS ISO 13041-4-2004 数控立式车床和旋转中心的试验条件.平直和旋转轴定位的精确性和反复性
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【英文标准名称】:Testconditionsfornumericallycontrolledturningmachinesandturningcentres-Accuracyandrepeatabilityofpositioningoflinearandrotaryaxes
【原文标准名称】:数控立式车床和旋转中心的试验条件.平直和旋转轴定位的精确性和反复性
【标准号】:BSISO13041-4-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-01-27
【实施或试行日期】:2004-01-27
【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】:位置控制;数控;旋转中心;主轴;精密度;试验条件;数控机床;试验;水平的;验证;重复性;线性度;车床;机床;旋转轴;准确度;六角车床
【英文主题词】:Accuracy;Axisofrotation;Horizontal;Lathes;Linearity;Machinetools;Numericalcontrol;Numericallycontrolledmachines;Positioning;Precision;Repeatability;Spindles;Testingconditions;Tests;Turningcentres;Turretlathes;Verification
【摘要】:ThispartofISO13041specifies,withreferencetoISO230-2,thetoleranceswhichapplytothepositioningtestsforlinearaxes,upto2000mminlength,androtaryaxesofnumericallycontrolled(NC)turningmachinesandturningcentres.Itdoesnotdealwithenvironmentalconditions,warm-upofthemachineandmeasuringmethodsalreadydescribedinISO230-2.
【中国标准分类号】:J50
【国际标准分类号】:25_040_20
【页数】:14P.;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforHigh-ResolutionGamma-RaySpectrometryofSoilSamples
【原文标准名称】:土壤样品的高分辨率γ射线光谱测定法的标准指南
【标准号】:ASTMC1402-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:C26.05
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:土壤;土壤普查;放射性核素;γ射线光谱测定法;土壤采样;γ射线
【英文主题词】:gamma-ray;redionuclides;gamma-rayspectrometry
【摘要】:Gamma-rayspectrometryofsoilsamplesisusedtoidentifyandquantifycertaingamma-rayemittingradionuclides.Useofagermaniumsemiconductordetectorisnecessaryforhigh-resolutiongamma-raymeasurements.Muchofthedataacquisitionandanalysiscanbeautomatedwiththeuseofcommerciallyavailablesystemsthatincludebothhardwareandsoftware.ForageneraldescriptionofthetypicalhardwareinmoredetailthandiscussedinSection6,seeRef(19).Bothqualitativeandquantitativeanalysesmaybeperformedusingthesamemeasurementdata.Theproceduresdescribedinthisguidemaybeusedforawidevarietyofactivitylevels,fromnaturalbackgroundlevelsandfallout-typeproblems,todeterminingtheeffectivenessofcleanupeffortsafteraspilloranindustrialaccident,totracingcontaminationatolderproductionsites,wherewasteswerepurposelydisposedofinsoil.Insomecases,thecombinationofradionuclideidentitiesandconcentrationratioscanbeusedtodeterminethesourceoftheradioactivematerials.Collectingsamplesandbringingthemtoadataacquisitionsystemforanalysismaybeusedastheprimarymethodtodetectdepositionofradionuclidesinsoil.Forobtainingarepresentativesetofsamplesthatcoveraparticulararea,seePracticeC998.Soilcanalsobemeasuredbytakingthedataacquisitionsystemtothefieldandmeasuringthesoilinplace(insitu).Insitumeasurementtechniquesarenotdiscussedinthisguide.1.1Thisguidecoverstheidentificationandquantitativedeterminationofgamma-rayemittingradionuclidesinsoilsamplesbymeansofgamma-rayspectrometry.Itisapplicabletonuclidesemittinggammarayswithenergiesgreaterthan20keV.Fortypicalgamma-rayspectrometrysystemsandsampletypes,activitylevelsofabout5Bqaremeasuredeasilyformostnuclides,andactivitylevelsaslowas0.1Bqcanbemeasuredformanynuclides.Itisnotapplicabletoradionuclidesthatemitnogammarayssuchasthepurebeta-emittingradionuclideshydrogen-3,carbon-14,strontium-90,andbecquerelquantitiesofmosttransuranics.Thisguidedoesnotaddresstheinsitumeasurementtechniques,wheresoilisanalyzedinplacewithoutsampling.GuidanceforinsitutechniquescanbefoundinRef(1)and(2).Thisguidealsodoesnotdiscussmethodsfordetermininglowerlimitsofdetection.SuchdiscussionscanbefoundinRefs(3),(4),(5),and(6).1.2Thisguidecanbeusedforeitherquantitativeorrelativedeterminations.Forquantitativeassay,theresultsareexpressedintermsofabsoluteactivitiesoractivityconcentrationsoftheradionuclidesfoundtobepresent.Thisguidemayalsobeusedforqualitativeidentificationofthegamma-rayemittingradionuclidesinsoilwithoutattemptingtoquantifytheiractivities.Itcanalsobeusedtoonlydeterminetheirlevelofactivitiesrelativetoeachotherbutnotinanabsolutesense.GeneralinformationonradioactivityanditsmeasurementmaybefoundinRefs(7),(8),(9),(10),and(11)andGeneralMethodsE-181.Informationonspecificapplicationsofgamma-rayspectrometryisalsoavailableinRefs(12)or(13).PracticeD3649isavaluablesourceofinformation.1.3Thisstandardmayinvolvehazardousmaterial,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z18
【国际标准分类号】:13_080_20
【页数】:9P.;A4
【正文语种】:
MIL-STD-188/200, DEPARTMENT OF DEFENSE INTERFACE STANDARD: SYSTEM DESIGN AND ENGINEERING STANDARD (28 JUN 1983)., The purpose of this document is to promulgate technical parameters in the form of mandatory system standards and optional design objectives that are considered necessary to ensure interoperability and to promote compatibility and commonality among tactical communications equipment, subsystems and systems.
