EN 12629-1-2000 混凝土和硅酸盐建筑材料生产机械.安全性.第1部分:通用要求
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来源:标准资料网
【英文标准名称】:Machinesforthemanufactureofconstructionalproductsfromconcreteandcalcium-silicate-Safety-Part1:Commonrequirements;GermanversionEN12629-1:2000
【原文标准名称】:混凝土和硅酸盐建筑材料生产机械.安全性.第1部分:通用要求
【标准号】:EN12629-1-2000
【标准状态】:现行
【国别】:
【发布日期】:2001-01
【实施或试行日期】:2001-01-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;设计;硅酸盐砖;安全;危害;生产;规范(验收);职业安全;操作;维修;混凝土;机器;建筑产品;危险防护;工作场所安全
【英文主题词】:Calciumsilicatebricks;Concretes;Constructionalproducts;Definition;Definitions;Design;Hazards;Machines;Maintenance;Occupationalsafety;Operation;Production;Protectionagainstdanger;Safety;Specification(approval);Workplacesafety
【摘要】:
【中国标准分类号】:Q92
【国际标准分类号】:91_220
【页数】:16P.;A4
【正文语种】:英语
【英文标准名称】:Spicesandcondiments.Determinationofacid-insolubleash.
【原文标准名称】:香料和调味品.酸溶灰分的测定
【标准号】:NFV03-405-1998
【标准状态】:现行
【国别】:法国
【发布日期】:1998-05-01
【实施或试行日期】:1998-05-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acid-insoluble;Agriculturalproducts;Agriculture;Analysis;Ashcontents;Ashdetermination;Ashes;Chemicalanalysisandtesting;Combustion;Definition;Definitions;Determination;Determinationofcontent;Foodinspection;Foodproducts;Herbs;Methods;Products;Residuesonignition;Seasonings;Spices;Testing;Totalash;Vegetable
【摘要】:
【中国标准分类号】:X66
【国际标准分类号】:67_220_10
【页数】:8P.;A4
【正文语种】:其他
【英文标准名称】:StandardPracticeforScanningElectronMicroscopeBeamSizeCharacterization
【原文标准名称】:扫描电子显微镜射束尺寸特征描述标准实施规程
【标准号】:ASTME986-2004
【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】:E04.11
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:试验;特性;金相学;电子显微镜;扫描电子显微镜;性能;显微镜;工艺
【英文主题词】:electronbeamsize;E766;graphitefiber;magnification;NIST-SRM2069B;resolution;SEM;SEMperformance;spotsize;waveform
【摘要】:ThetraditionalresolutiontestoftheSEMrequires,asafirststep,aphotomicrographofafineparticulatesampletakenatahighmagnification.Theoperatorisrequiredtomeasureadistanceonthephotomicrographbetweentwoadjacent,butseparateedges.Theseedgesareusuallylessthanonemillimetreapart.TheirimagequalityisoftenlessthanoptimumlimitedbytheS/Nratioofabeamwithsuchasmalldiameterandlowcurrent.Operatorjudgmentisdependentontheindividualacuityofthepersonmakingthemeasurementandcanvarysignificantly.UseofthispracticeresultsinSEMelectronbeamsizecharacterizationwhichissignificantlymorereproduciblethanthetraditionalresolutiontestusingafineparticulatesample.1.1Thispracticeprovidesareproduciblemeansbywhichoneaspectoftheperformanceofascanningelectronmicroscope(SEM)maybecharacterized.TheresolutionofanSEMdependsonmanyfactors,someofwhichareelectronbeamvoltageandcurrent,lensaberrations,contrastinthespecimen,andoperator-instrument-materialinteraction.However,theresolutionforanysetofconditionsislimitedbythesizeoftheelectronbeam.Thissizecanbequantifiedthroughthemeasurementofaneffectiveapparentedgesharpnessforanumberofmaterials,twoofwhicharesuggested.ThispracticerequiresanSEMwiththecapabilitytoperformline-scantraces,forexample,Y-deflectionwaveformgeneration,forthesuggestedmaterials.TherangeofSEMmagnificationatwhichthispracticeisofutilityisfrom1000to50000x.Highermagnificationsmaybeattempted,butdifficultyinmakingprecisemeasurementscanbeexpected.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N32
【国际标准分类号】:31_120;37_020
【页数】:3P.;A4
【正文语种】:
