ASME B16.24-2001 150、300、400、600、900、1500和2500类铸铜合金管法兰和法兰配件
时间:2024-05-14 00:27:00 来源: 标准资料网 作者：标准资料网 阅读：9928
【英文标准名称】:Castcopperalloypipeflangesandflangedfittings:Classes150,300,400,600,900,1500,and2500
【原文标准名称】:150、300、400、600、900、1500和2500类铸铜合金管法兰和法兰配件
【标准号】:ASMEB16.24-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【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】:管道配件;法兰;分类;试验;作标记;材料规范;法兰管件;铜管;铜管;铸铜合金;螺栓连接(法兰);尺寸;管连接件;铜合金
【英文主题词】:Bolting;Classification;Copperalloys;Coppercastingalloys;Copperpipes;Coppertubes;Dimensions;Flangedfittings;Flanges;Marking;Materialsspecification;Pipecouplings;Pipefittings;Testing
【摘要】:
【中国标准分类号】:J15
【国际标准分类号】:23_040_40;23_040_60
【页数】:21P;A4
【正文语种】:英语
【英文标准名称】:Chemicaldisinfectantsandantiseptics-Hygienichandwash-Testmethodandrequirements(phase2/step2);GermanversionEN1499:1997
【原文标准名称】:化学消毒剂和防腐剂.消毒洗手液.试验方法和要求(第2阶段/2级)
【标准号】:EN1499-1997
【标准状态】:现行
【国别】:
【发布日期】:1997-06
【实施或试行日期】:
【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】:规范(验收);手;消毒剂试验;防腐剂;洗涤剂;试验;消毒;消毒剂;效应;定义;医学科学;效率;卫生学;医疗产品;清洗;化学的
【英文主题词】:
【摘要】:
【中国标准分类号】:G04
【国际标准分类号】:11_080_20*71_100_35
【页数】:16P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforPulseVelocityThroughConcrete
【原文标准名称】:通过混凝土脉冲速度的标准试验方法
【标准号】:ASTMC597-2009
【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】:C09.64
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:concrete;longitudinalstresswave;nondestructivetesting;pulsevelocity;ultrasonictesting;Nondestructiveevaluation(NDE)--concrete/masonry;Pulsevelocity
【摘要】:Thepulsevelocity,V,oflongitudinalstresswavesinaconcretemassisrelatedtoitselasticpropertiesanddensityaccordingtothefollowingrelationship:Thistestmethodisapplicabletoassesstheuniformityandrelativequalityofconcrete,toindicatethepresenceofvoidsandcracks,andtoevaluatetheeffectivenessofcrackrepairs.Itisalsoapplicabletoindicatechangesinthepropertiesofconcrete,andinthesurveyofstructures,toestimatetheseverityofdeteriorationorcracking.Whenusedtomonitorchangesinconditionovertime,testlocationsaretobemarkedonthestructuretoensurethattestsarerepeatedatthesamepositions.Thedegreeofsaturationoftheconcreteaffectsthepulsevelocity,andthisfactormustbeconsideredwhenevaluatingtestresults(Note1).Inaddition,thepulsevelocityinsaturatedconcreteislesssensitivetochangesinitsrelativequality.Note18212;Thepulsevelocityinsaturatedconcretemaybeupto5%higherthanindryconcrete.Thepulsevelocityisindependentofthedimensionsofthetestobjectprovidedreflectedwavesfromboundariesdonotcomplicatethedeterminationofthearrivaltimeofthedirectlytransmittedpulse.Theleastdimensionofthetestobjectmustexceedthewavelengthoftheultrasonicvibrations(Note2).Note28212;Thewavelengthofthevibrationsequalsthepulsevelocitydividedbythefrequencyofvibrations.Forexample,forafrequencyof54kHzandapulsevelocityof3500m/s,thewavelengthis3500/54000=0.065m.Theaccuracyofthemeasurementdependsupontheabilityoftheoperatortodeterminepreciselythedistancebetweenthetransducersandoftheequipmenttomeasurepreciselythepulsetransittime.Thereceivedsignalstrengthandmeasuredtransittimeareaffectedbythecouplingofthetransducerstotheconcretesurfaces.Sufficientcouplingagentandpressuremustbeappliedtothetransducerstoensurestabletransittimes.Thestrengthofthereceivedsignalisalsoaffectedbythetravelpathlengthandbythepresenceanddegreeofcrackingordeteriorationintheconcretetested.Note38212;Propercouplingcanbeverifiedbyviewingtheshapeandmagnitudeofthereceivedwaveform.Thewaveformshouldhaveadecayingsinusoidalshape.Theshapecanbeviewedbymeansofoutputstoanoscilloscopeordigitizeddisplayinherentinthedevice.Theresultsobtainedbytheuseofthistestmethodarenottobeconsideredasameansofmeasuringstrengthnorasanadequatetestforestablishingcomplianceofthemodulusofelasticityoffieldconcretewiththatassumedinthedesign.ThelongitudinalresonancemethodinTestMethodC215isrecommendedfordeterminingthedynamicmodulusofelasticityoftestspecimensobtainedfromfieldconcretebecausePoisson''sratiodoesnothavetobeknown.Note48212;Whencircumstancespermit,avelocity-strength(orvelocity-modulus)relationshipmaybeestablishedbythedeterminationofpulsevelocityandcompressivestrength(ormodulusofelasticity)onanumberofsamplesofaconcrete.Thisrelationshipmayserveasabasisfortheestimationofstrength(ormodulusofelasticity)byfurtherpulse-velocitytestsonthatconcrete.RefertoACI228.1Rforguidanceontheproceduresfordevelopingandusingsucharelationship.Theprocedureisapplicableinbothfieldandlaboratorytestingregardlessofsizeorshapeofthespecimenwithinthelimitationsofavailab..........
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】:英语