ASME B30.8-1993 浮式起重机和浮式桅杆起重机
时间:2024-05-20 02:47:08 来源: 标准资料网 作者：标准资料网 阅读：9084
【英文标准名称】:Floatingcranesandfloatingderricks
【原文标准名称】:浮式起重机和浮式桅杆起重机
【标准号】:ASMEB30.8-1993
【标准状态】:作废
【国别】:美国
【发布日期】:1993
【实施或试行日期】:
【发布单位】:美国机械工程师协会(ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:起重机;电动的;桅杆起重机;浮式起重机;检验;装置;安装;提升装置;维修;提升设备;安全
【英文主题词】:liftingequipment;installations;power-operated;cranes;floatingcrane;liftingdevices;inspection;derricks;maintenance;safety
【摘要】:
【中国标准分类号】:J80
【国际标准分类号】:53_020_20
【页数】:43P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDensityofBituminousConcreteinPlacebyNuclearMethods
【原文标准名称】:采用核子法现场测定沥青混凝土密度的标准方法
【标准号】:ASTMD2950-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D04.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:bituminous-concretedensity;density;in-placedensity;nucleartestmethod;Concrete;Density--pavingmaterials;Gammaradiation--soil/rock;Neutronradiation--concrete;Nuclearmethods
【摘要】:Thetestmethoddescribedisusefulasarapid,nondestructivetechniquefordeterminingthein-placedensityofcompactedbituminousmixtures.Withpropercalibrationandconfirmationtesting,thetestmethodissuitableforqualitycontrolandacceptancetestingofcompactedbituminousconcrete.Thetestmethodcanbeusedtoestablishtheproperrollingeffortandpatterntoachievetherequireddensity.Thenon-destructivenatureofthetestallowsrepetitivemeasurementstobemadeatasingletestlocationbetweenrollerpassesandtomonitorchangesindensity.Thedensityresultsobtainedbythistestmethodarerelative.CorrelationwithothertestmethodssuchasD1188orD2726arerequiredtoconverttheresultsobtainedusingthismethodtoactualdensity.Itisrecommendedthatatleastsevencoredensitiesandsevennucleardensitiesbeusedtoestablishaconversionfactor.Anewfactormustbeestablishedatanytimeachangeismadeinthepavingmixtureorintheconstructionprocess.1.1Thistestmethoddescribesatestprocedurefordeterminingthedensityofbituminousconcretebytheattenuationofgammaradiation,wherethesourceanddetector(s)remainonthesurface(BackscatterMethod)orthesourceordetectorisplacedataknowndepthupto300mm(12in.)whilethedetectororsourceremainsonthesurface(DirectTransmissionMethod).1.2Thedensity,inmassperunitvolumeofthematerialundertest,isdeterminedbycomparingthedetectedrateofgammaemissionswithpreviouslyestablishedcalibrationdata.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ForspecificwarningstatementsseeSection6andNote4.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundequivalentsmaybeapproximate.
【中国标准分类号】:E43
【国际标准分类号】:93_080_10
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:Plasmadisplaypanels-Part2-4:Measuringmethods-Visualquality:Imageartifacts
【原文标准名称】:等离子显示板.第2-4部分:测量方法.视觉质量:图像伪影
【标准号】:IEC61988-2-4-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-08
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC110
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Characterisations;Colorimetry;Colourpicture;Colourrenderings;Computertechnology;Contrast(optical);Definitions;Digitaldata;Display;Flatpaneldisplays;Flicker;Indications;Luminance;Measurement;Measurementconditions;Measuringtechniques;Methodsformeasuring;Movingpictures;Multimedia;Opticalmeasurement;Plasma;Plasmadisplaypanels;Plasmaequipment;Properties;Qualityassurance;Radiance;Resolution;Screens;Testsignals;Viewingconditions;Visual;Visualangles
【摘要】:
【中国标准分类号】:L38;L53
【国际标准分类号】:31_120;31_260
【页数】:70P;A4
【正文语种】:英语