ANSI/NSF 4(i6)-2005 商用烹调、再加热以及自动加热食品存储和运输设备
作者:标准资料网 时间:2024-05-10 03:55:10 浏览:9621
来源:标准资料网
【英文标准名称】:Commercialcooking,rethermalization,andpoweredhotfoodholdingandtransportequipment
【原文标准名称】:商用烹调、再加热以及自动加热食品存储和运输设备
【标准号】:ANSI/NSF4(i6)-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:个人保健;公共饮食业用电器
【英文主题词】:electricalcateringappliances;personalhealth
【摘要】:Thepurposeofthisballotistoaddahot-holdingperformancetestforopenheatedmerchandiserunits.
【中国标准分类号】:Y68
【国际标准分类号】:
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodforIn-PlaceDensityandWaterContentofSoilandSoil-AggregatebyNuclearMethods(ShallowDepth)
【原文标准名称】:核方法(浅深度)测定土壤和土集料的现场密度和含水率的标准试验方法
【标准号】:ASTMD6938-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Compactiontest;acceptancetesting;constructioncontrol;qualitycontrol;fielddensity;in-placedensity;wetdensity;watercontent;drydensity;nuclearmethods,nucleargauge;In-placedensity(ofsoil);Nuclearmethods;Shallowdepthtest;Soil;So
【摘要】:Thetestmethoddescribedisusefulasarapid,nondestructivetechniqueforin-placemeasurementsofwetdensityandwatercontentofsoilandsoil-aggregateandthedeterminationofdrydensity.Thetestmethodisusedforqualitycontrolandacceptancetestingofcompactedsoilandsoil-aggregatemixturesasusedinconstructionandalsoforresearchanddevelopment.Thenondestructivenatureallowsrepetitivemeasurementsatasingletestlocationandstatisticalanalysisoftheresults.Density8212;ThefundamentalassumptionsinherentinthemethodsarethatComptonscatteringisthedominantinteractionandthatthematerialishomogeneous.WaterContent8212;Thefundamentalassumptionsinherentinthetestmethodarethatthehydrogenionspresentinthesoilorsoil-aggregateareintheformofwaterasdefinedbythewatercontentderivedfromTestMethodsD2216,andthatthematerialishomogeneous.(See5.2)Note18212;Thequalityoftheresultproducedbythisstandardtestmethodisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection,andthelike.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethoddescribestheproceduresformeasuringin-placedensityandmoistureofsoilandsoil-aggregatebyuseofnuclearequipment.Thedensityofthematerialmaybemeasuredbydirecttransmission,backscatter,orbackscatter/air-gapratiomethods.Measurementsforwater(moisture)contentaretakenatthesurfaceinbackscattermoderegardlessofthemodebeingusedfordensity.ItistheintentofthissubcommitteethatthisstandardreplaceD2922andD3017.1.1.1ForlimitationsseeSection5onInterferences.1.2Thetotalorwetdensityofsoilandsoil-aggregateismeasuredbytheattenuationofgammaradiationwhere,indirecttransmission,thesourceisplacedataknowndepthupto300mm(12in.)andthedetector(s)remainsonthesurface(somegaugesmayreversethisorientation);orinbackscatterorbackscatter/air-gapthesourceanddetector(s)bothremainonthesurface.1.2.1Thedensityofthetestsampleinmassperunitvolumeiscalculatedbycomparingthedetectedrateofgammaradiationwithpreviouslyestablishedcalibrationdata.1.2.2Thedrydensityofthetestsampleisobtainedbysubtractingthewatermassperunitvolumefromthetestsamplewetdensity(Section11).Mostgaugesdisplaythisvaluedirectly.1.3Thegaugeiscalibratedtoreadthewatermassperunitvolumeofsoilorsoil-aggregate.Whendividedbythedensityofwaterandthenmultipliedby100,thewatermassperunitvolumeisequivalenttothevolumetricwatercontent.Thewatermassperunitvolumeisdeterminedbythethermalizingorslowingoffastneutronsbyhydrogen,acomponentofwater.Theneutronsourceandthethermalneutrondetectorarebothlocatedatthesurfaceofthematerialbeingtested.Thewate......
【中国标准分类号】:Q13
【国际标准分类号】:13_080_20
【页数】:10P.;A4
【正文语种】:英语
【英文标准名称】:Textilemachineryandaccessories-Reeds-Part4:Plasticboundmetalreeds;dimensionsanddesignation(ISO366-4:1992)
【原文标准名称】:纺织机械和附件.织筘.第4部分:塑料织筘.尺寸和标识
【标准号】:DINISO366-4-1997
【标准状态】:作废
【国别】:德国
【发布日期】:1997-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:筘(纺织);纺织工业;纺织机械;织机;尺寸;附件;名称与符号;塑料
【英文主题词】:plastics;reeds(textiles);looms;textileindustry;accessories;dimensions;designations;textilemachines
【摘要】:
【中国标准分类号】:W91
【国际标准分类号】:59_120_30
【页数】:3P.;A4
【正文语种】:德语
