标准名称：	矿用刮板输送机驱动链轮
中标分类：	矿业 >> 矿山机械设备 >> 矿山机械设备综合
替代情况：	MT/Z 8-80 MT/Z 9-80
发布部门：	中华人民共和国能源部
发布日期：	1991-01-15
实施日期：	1991-03-01
首发日期：
作废日期：
提出单位：	煤炭科学研究总院
起草单位：	煤炭科学研究总院太原分院
起草人：	郑会持、程新中
出版社：	中国煤炭工业出版社
出版日期：	1991-03-01
页数：	11页

本标准规定了矿用刮板输送机驱动链轮（以下简称链轮）的型式尺寸、技术要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于煤矿井下刮板输送机、刨煤机、滚筒采煤机的驱动链轮。

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【英文标准名称】:StandardPracticesforThermalNeutronRadiographyofMaterials
【原文标准名称】:材料的热中子射线照相术标准实施规程
【标准号】:ASTME748-2002(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:E07.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:neutronattenuation;neutroncollimator;neutronradiography;neutronsources;Neutronradiographictesting;Nuclearapplications/materials;Radiationexposure;Radiographicexamination;Thermalneutronradiographictesting
【摘要】:Thesepracticesincludetypesofmaterialstobeexamined,neutronradiographicexaminationtechniques,neutronproductionandcollimationmethods,radiographicfilm,andconverterscreenselection.Withinthepresentstateoftheneutronradiologicart,thesepracticesaregenerallyapplicabletospecificmaterialcombinations,processes,andtechniques.1.1Purpose8212;Practicestobeemployedfortheradiographicexaminationofmaterialsandcomponentswiththermalneutronsareoutlinedherein.Theyareintendedasaguidefortheproductionofneutronradiographsthatpossessconsistentqualitycharacteristics,aswellasaidingtheusertoconsidertheapplicabilityofthermalneutronradiology(radiology,radiographic,andrelatedtermsaredefinedinTerminologyE1316).Statementsconcerningpreferredpracticeareprovidedwithoutadiscussionofthetechnicalbackgroundforthepreference.ThenecessarytechnicalbackgroundcanbefoundinRefs(1-16).1.2Limitations8212;Acceptancestandardshavenotbeenestablishedforanymaterialorproductionprocess(seeSection5onBasisofApplication).Adherencetothepracticeswill,however,producereproducibleresultsthatcouldserveasstandards.Neutronradiography,whetherperformedbymeansofareactor,anaccelerator,subcriticalassembly,orradioactivesource,willbeconsistentinsensitivityandresolutiononlyiftheconsistencyofalldetailsofthetechnique,suchasneutronsource,collimation,geometry,film,etc.,ismaintainedthroughthepractices.Thesepracticesarelimitedtotheuseofphotographicorradiographicfilmincombinationwithconversionscreensforimagerecording;otherimagingsystemsareavailable.Emphasisisplacedontheuseofnuclearreactorneutronsources.1.3InterpretationandAcceptanceStandards8212;Interpretationandacceptancestandardsarenotcoveredbythesepractices.Designationofaccept-rejectstandardsisrecognizedtobewithinthecognizanceofproductspecifications.1.4SafetyPractices8212;GeneralpracticesforpersonnelprotectionagainstneutronandassociatedradiationpeculiartotheneutronradiologicprocessarediscussedinSection17.Forfurtherinformationonthisimportantaspectofneutronradiology,refertocurrentdocumentsoftheNationalCommitteeonRadiationProtectionandMeasurement,theCodeofFederalRegulations,theU.S.NuclearRegulatoryCommission,theU.S.DepartmentofEnergy,theNationalInstituteofStandardsandTechnology,andtoapplicablestateandlocalcodes.1.5OtherAspectsoftheNeutronRadiographicProcess8212;Formanyimportantaspectsofneutronradiographysuchastechnique,files,viewingofradiographs,storageofradiographs,filmprocessing,andrecordkeeping,refertoGuideE94.(SeeSection2.)1.6ThevaluesstatedineitherSIorinch-poundunitsaretoberegardedasthestandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Formorespecificsafetyinformationsee1.4.)
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:11P.;A4
【正文语种】:英语