GB/T 5190-1985 镍及白铜箔
时间:2024-05-16 04:42:22 来源: 标准资料网 作者:标准资料网 阅读:8997
基本信息
标准名称: | 镍及白铜箔 |
英文名称: | Nickel and nickel silver foil |
中标分类: |
冶金 >>
有色金属及其合金产品 >>
重金属及其合金 |
ICS分类: |
冶金 >>
有色金属 >>
铜和铜合金
|
替代情况: | 调整为YS/T 522-2006 |
发布部门: | 中国有色金属工业协会 |
发布日期: | 1985-05-18 |
实施日期: | 1986-03-01 |
首发日期: | 1985-05-18 |
作废日期: | 2007-09-29 |
主管部门: | 中国有色金属工业协会 |
归口单位: | 全国有色金属标准化技术委员会 |
起草单位: | 上海金属带箔厂 |
出版日期: | 1900-01-01 |
页数: | 3页 |
适用范围
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前言
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目录
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引用标准
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所属分类: 冶金 有色金属及其合金产品 重金属及其合金 冶金 有色金属 铜和铜合金
【英文标准名称】:HolderOutlinesandPinConnectionsforQuartzCrystalUnits
【原文标准名称】:石英晶体元件的外形和插脚连接
【标准号】:ANSI/EIA-192-A-1967
【标准状态】:作废
【国别】:美国
【发布日期】:1967
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:压电器件;电子工程;石英晶体
【英文主题词】:piezoelectricdevices;quartzcrystals;electronicengineering
【摘要】:
【中国标准分类号】:L21
【国际标准分类号】:31_140
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodforNondestructiveAssayofSpecialNuclearMaterialinLowDensityScrapandWastebySegmentedPassiveGamma-RayScanning
【原文标准名称】:分段无源γ射线扫描法对低密度废料及残渣中特殊核材料进行无损检验的标准试验方法
【标准号】:ASTMC1133-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:C26.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:核技术;γ辐射;放射性废物;无损检验;试验
【英文主题词】:nondestructiveassay;segmentedgamma-rayscanning;specialnuclearmaterial
【摘要】:Segmentedgamma-rayscanningprovidesanondestructivemeansofmeasuringthenuclidecontentofscrapandwastewherethespecificnatureofthematrixandthechemicalformandrelationshipbetweenthenuclideandmatrixmaybeunknown.Theprocedurecanserveasadiagnostictoolthatprovidesaverticalprofileoftransmissionandnuclideconcentrationwithintheitem.Samplepreparationisgenerallylimitedtogoodwaste/scrapsegregationpracticesthatproducerelativelyhomogeneousitemsthatarerequiredforanysuccessfulwaste/inventorymanagementandassayscheme,regardlessofthemeasurementmethodused.Also,processknowledgeshouldbeused,whenavailable,aspartofawastemanagementprogramtocomplementinformationonsampleparameters,containerproperties,andtheappropriatenessofcalibrationfactors.1.1Thistestmethodcoversthetransmission-correctednondestructiveassay(NDA)ofgamma-rayemittingspecialnuclearmaterials(SNMs),mostcommonly235U,239Pu,and241Am,inlow-densityscraporwaste,packagedincylindricalcontainers.ThemethodcanalsobeappliedtoNDAofothergamma-emittingnuclidesincludingfissionproducts.High-resolutiongamma-rayspectroscopyisusedtodetectandmeasurethenuclidesofinterestandtomeasureandcorrectforgamma-rayattenuationinaseriesofhorizontalsegments(collimatedgammadetectorviews)ofthecontainer.Correctionsarealsomadeforcountinglossesoccasionedbysignalprocessinglimitations(1-3).1.2TherearecurrentlyseveralsystemsinuseorunderdevelopmentfordeterminingtheattenuationcorrectionsforNDAofradioisotopicmaterials(4-8).Arelatedtechnique,tomographicgamma-rayscanning(TGS),isnotincludedinthistestmethod(9,10).1.2.1ThistestmethodwillcovertwoimplementationsoftheSegmentedGammaScanning(SGS)procedure:(1)IsotopeSpecific(Mass)Calibration,theoriginalSGSprocedure,usesstandardsofknownradionuclidemassestodeterminedetectorresponseinamassversuscorrectedcountratecalibrationthatappliesonlytothosespecificradionuclidesforwhichitiscalibrated,and(2)EfficiencyCurveCalibration,analternativemethod,typicallyusesnon-SNMradionuclidesourcestodeterminesystemdetectionefficiencyvs.gammaenergyandtherebycalibrateforallgamma-emittingradionuclidesofinterest(11).ThesetwomethodswillbecoveredindetailintheremainderofthemainbodyofthistestmethodandAnnexA1.1.2.1.1EfficiencyCurveCalibration,overtheenergyrangeforwhichtheefficiencyisdefined,hastheadvantageofprovidingcalibrationformanygamma-emittingnuclideforwhichhalf-lifeandgammaemissionintensitydataareavailable.1.3Theassaytechniquemaybeapplicabletoloadingsuptoseveralhundredgramsofnuclideina208-L(55-gal)drum,withmorerestrictedrangestobeapplicabledependingonspecificpackagingandcountingequipmentconsiderations.1.4Measuredtransmissionvaluesmustbeavailableforuseincalculationofsegment-specificattenuationcorrectionsattheenergiesofanalysis.1.5Arelatedmethod,SGSwithcalculatedcorrectionfactorsbasedonsamplecontentanddensity,isnotincludedinthisstandard.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.
【中国标准分类号】:F40
【国际标准分类号】:13_030_30;71_040_50
【页数】:16P.;A4
【正文语种】: