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【英文标准名称】:StandardTestMethodforNondestructiveAssayofSpecialNuclearMaterialHoldupUsingGamma-RaySpectroscopicMethods
【原文标准名称】:用Υ射线光谱法对特殊核物质含量无损分析的标准试验方法
【标准号】:ASTMC1455-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:(Guide)
【标准水平】:()
【中文主题词】:γ射线照相术;γ射线光谱测定法;无损检验;放射性同位素;放射性核素;光谱学
【英文主题词】:holdup,;holdupmeasurements;in-processinventory;materialholdup;nuclearmaterialholdup
【摘要】:1.1Thistestmethoddescribesgamma-raymethodsusedtonondestructivelymeasurethequantityof235U,or239Puremainingasholdupinnuclearfacilities.Holdupoccursinallfacilitieswherenuclearmaterialisprocessed,inprocessequipment,inexhaustventilationsystemsandinbuildingwallsandfloors.1.2Thistestmethodincludesinformationusefulformanagement,planning,selectionofequipment,considerationofinterferences,measurementprogramdefinition,andtheutilizationofresources(1,2,3,4).1.3Themeasurementofnuclearmaterialholdupinprocessequipmentrequiresascientificknowledgeofradiationsourcesanddetectors,transmissionofradiation,calibration,facilityoperationsanderroranalysis.Itissubjecttotheconstraintsofthefacility,management,budget,andschedule;plushealthandsafetyrequirements;aswellasthelawsofphysics.Themeasurementprocessincludesdefiningmeasurementuncertaintiesandissensitivetotheformanddistributionofthematerial,variousbackgrounds,andinterferences.Theworkincludesinvestigationofmaterialdistributionswithinafacility,whichcouldincludepotentiallylargeholdupsurfaceareas.Nuclearmaterialheldupinpipes,ductwork,gloveboxes,andheavyequipment,isusuallydistributedinadiffuseandirregularmanner.Itisdifficulttodefinethemeasurementgeometry,toidentifytheformofthematerial,andtomeasureitwithoutinterferencefromadjacentsourcesofradiation.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F80
【国际标准分类号】:27_120_30
【页数】:8P.;A4
【正文语种】:


【英文标准名称】:Machineryforforestry-Portablebrush-cuttersandgrass-trimmers-Vocabulary
【原文标准名称】:林业机械.便携式灌木铲除机和草坪修剪机
【标准号】:ISO7112-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-08
【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/TC23
【标准类型】:()
【标准水平】:()
【中文主题词】:农用设备;定义;英语;设备;林业;林业设备;高速切削装置;法语;机器;多语种的;便携的;便携式机床;俄语;锯;修剪机;词汇;木材加工
【英文主题词】:Agriculturalequipment;Definitions;Englishlanguage;Equipment;Forestry;Forestryequipment;Freecuttingdevices;Frenchlanguage;Machines;Multilingual;Portable;Portablemachinetools;Russianlanguage;Saws;Trimmers;Vocabulary;Woodworking
【摘要】:ThisInternationalStandarddefinestermsrelatingtoportablehand-heldbrush-cuttersandgrass-trimmers,theircuttingattachmentsandpowersources.Thebrush-cutterpositionsareshowninAnnexA.
【中国标准分类号】:B95
【国际标准分类号】:01_040_65;65_060_80
【页数】:15P;A4
【正文语种】:英语