SAE AMS5563 Steel, Corrosion Resistant, Seamless Or Welded Tubing, 19cr 9.5ni Cold Drawn, Quarter-Hard Temper

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Product Code:SAE AMS5563
Title:Steel, Corrosion Resistant, Seamless Or Welded Tubing, 19cr 9.5ni Cold Drawn, Quarter-Hard Temper
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion-resistant steel in the form of of seamless and drawn or welded and drawn tubing.
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【英文标准名称】:Industrial-processcontrolvalves-Noiseconsiderations-Controlvalveaerodynamicnoisepredictionmethod-Controlvalveaerodynamicnoisepredictionmethod
【原文标准名称】:工业流程控制阀.噪声.控制阀气动噪声预测法
【标准号】:BSEN60534-8-3-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-12-15
【实施或试行日期】:2000-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:空气动力学的;校正装置;管道;流体工程;控制阀;噪声测量;空气噪声;液体流动;空气噪声测量;定义;声压级;噪声辐射;实验室试验;数学计算;阀门;过程控制;过程测量和控制技术;试验;方向控制阀;电气工程;声学测量;计算方法;噪声;测量
【英文主题词】:Acousticmeasurement;Aerodynamicflow;Aerodynamical;Airbornenoise;Controlvalves;Correctingunits;Definition;Definitions;Direction-controlvalves;Electricalengineering;Fluidengineering;Laboratorytesting;Laboratorytests;Liquidflow;Mathematicalcalculations;Measurement;Measurementofairbornenoise;Methodsofcalculation;Noise;Noiseemissions;Noisemeasurements;Pipelines;Processcontrol;Processmeasuringandcontroltechnology;Soundpressurelevel;Testing;Valves
【摘要】:ThispartofIEC60534establishesatheoreticalmethodtopredicttheexternalsound-pressurelevelgeneratedinacontrolvalveandwithinadjacentpipeexpandersbytheflowofcompressiblefluids.Thismethodconsidersonlysingle-phasedrygasesandvapoursandisbasedontheperfectgaslaws.Thisstandardaddressesonlythenoisegeneratedbyaerodynamicprocessesinvalvesandintheconnectedpiping.Itdoesnotconsideranynoisegeneratedbyreflections,mechanicalvibrations,unstableflowpatternsandotherunpredictablebehaviour.Itisassumedthatthedownstreampipingisstraightforalengthofatleast2mfromthepointwherethenoisemeasurementismade.Thismethodisvalidonlyforsteelandsteelalloypipes(seeequations(38)and(40)in5.6).Themethodisapplicabletothefollowingsingle-stagevalves:globe(straightpatternandanglepattern),butterfly,rotaryplug(eccentric,spherical),ball,andvalveswithcagetrims.SpecificallyexcludedarethefullboreballvalveswheretheproductFPCexceeds50%oftheratedflowcoefficient.Forlimitationsonspeciallownoisetrimsnotcoveredbythisstandard,see6.5.WhentheMachnumberinthevalveoutletexceeds0,3forstandardtrimor0,2forlownoisetrim,theprocedureinclause7isused.TheMachnumberlimitsinthisstandardareasfollows:
【中国标准分类号】:N16
【国际标准分类号】:17_140_20;23_060_40
【页数】:60P.;A4
【正文语种】:英语


【英文标准名称】:TestMethodforAirportPavementConditionIndexSurveys
【原文标准名称】:机场跑道道面状况指数测量的试验方法
【标准号】:ASTMD5340-1993
【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】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;机场道路;调查;飞机场
【英文主题词】:surveys;testing;airportpavements;airfields
【摘要】:
【中国标准分类号】:P68
【国际标准分类号】:93_120
【页数】:48P;A4
【正文语种】:英语