BS EN 307-1999 热交换器.为维持各种类型热交换器的工作性能需要制定设备的安装,操作和维护说明的指南
作者:标准资料网 时间:2024-05-02 21:52:01 浏览:8235
来源:标准资料网
【英文标准名称】:Heatexchangers-Guidelinesforpreparinginstallation,operatingandmaintenanceinstructionsrequiredtomaintaintheperformanceofeachtypeofheatexchanger
【原文标准名称】:热交换器.为维持各种类型热交换器的工作性能需要制定设备的安装,操作和维护说明的指南
【标准号】:BSEN307-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-03-15
【实施或试行日期】:1999-03-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:热交换器;维修;热泵;空调设备;制冷系统;使用说明;性能;分类系统;热力工程;装配;热工部件
【英文主题词】:
【摘要】:ThisEuropeanStandardgivesguidanceonthepreparationofmanufacturers'instructionsfortheinstallation,operationandmaintenanceofheatexchangers.Meetingtherecommendationsinthisstandarddoesnotremovetheinstallers'responsibilitytoprovideallnecessaryspecificinformationtoensurethesafeandefficientworkingoftheirequipment.
【中国标准分类号】:J75
【国际标准分类号】:27_060_30
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:Informationtechnologyequipment-Immunitycharacteristics-Limitsandmethodsofmeasurement.
【原文标准名称】:信息技术设备.抗扰性的特性.限值和测量方法
【标准号】:NFC91-024/A1-2002
【标准状态】:现行
【国别】:法国
【发布日期】:2002-02-01
【实施或试行日期】:2002-02-20
【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】:试验;信息技术;测量技术;电气工程;干扰抑制;极限(数学);计算机;无线电干扰测量;抗扰性;评定
【英文主题词】:Computers;Definition;Definitions;Electricalengineering;Environmentalcondition;Evaluations;Immunity;Informationtechnology;Interferencerejections;Interferencesuppression;Limits(mathematics);Measuringtechniques;Radiointerferencemeasurements;Telecommunications;Testing
【摘要】:
【中国标准分类号】:L06
【国际标准分类号】:33_100_20
【页数】:6P.;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforConcretePipeSewerlinesbyNegativeAirPressure(Vacuum)TestMethod(Metric)
【原文标准名称】:负压(真空)试验法测定混凝土管下水道的标准试验方法(米制)
【标准号】:ASTMC1214M-2002(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:C13.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Pressuretesting--concretepipe;Sewerlines;Silica;Concretepipe;Density--concrete;Negativeairpressure(vacuum)method;Portlandcement
【摘要】:Thisisnotaroutinetest.Thevaluesrecordedareapplicableonlytothesewerbeingtestedandatthetimeoftesting.1.1Thistestmethodcoversproceduresfortestingconcretepipesewerlines,whenusingthenegativeairpressure(vacuum)testmethodtodemonstratetheintegrityoftheinstalledmaterialandtheconstructionprocedures.Thistestmethodcoverstestingof100to900-mmdiametercircularconcretepipesewerlinesutilizinggasketedjoints.Note18212;Theuserofthisspecificationisadvisedthatmethodsdescribedinthistestmethodmayalsobeusedasapreliminarytesttoenablethemanufacturerorinstallertodemonstratetheconditionofsewerpipepriortodeliveryorbackfill.MinimumtesttimespresentedinTable1areforpipelines.Holdingtimesfortestinganindividualpipemayhavetobeincreasedtoallowfortheaccumulationofleakagewhenthetestedpipeareincorporatedintoacontinuouspipeline.Note28212;Theuserofthistestmethodisadvisedthatthenegativeairpressure(vacuum)testcriteriapresentedinthistestmethodaresimilartothoseingeneraluse.Thetestandcriteriahavebeenusedwidelyandsuccessfullyintestingsmallerdiameterpipe.Largerpipewillbeacceptedmoreconvenientlybyvisualinspectionandindividualjointtesting.Note38212;Theuserofthistestmethodisadvisedthatnocorrelationhasbeenfoundbetweenlossofvacuumandwaterleakage.1.2ThistestmethodistheSIcompaniontoTestMethodC1214.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection6forspecificsafetyprecautions.TABLE1MinimumTestTimeNominalPipeSize,mmT(Time),min/100mNominalPipeSize,mmT(Time),min/100m100
0.9
525
9.7
150
2.0
600
11.0
200
3.5
675
13.0
250
4.7
750
15.0
300
6.0
825
17.0
375
6.8
900
19.0
450
7.7
