BS EN 1518-1998 无损检验.漏泄试验.质谱仪漏泄检测器特性

作者:标准资料网 时间:2024-05-28 14:46:49  浏览:8252   来源:标准资料网

【英文标准名称】:Non-destructivetesting-Leaktesting-Characterizationofmassspectrometerleakdetectors
【原文标准名称】:无损检验.漏泄试验.质谱仪漏泄检测器特性
【标准号】:BSEN1518-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-08-15
【实施或试行日期】:1998-08-15
【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】:试验条件;试验设备;漏泄试验;灵敏度;乱真信号;质谱仪;质谱学;真空工程;示踪法;真空度测量;校正;检漏仪
【英文主题词】:Definition;Definitions;Detectors(circuits);Helium;Leakdetectors;Leaktests;Massspectrometers;Massspectrometry;Materialstesting;Non-destructivetesting;Parameters;Testgases;Testing
【摘要】:ThisEuropeanStandardspecifiestermsandproceduresforthecharacterizationofmassspectrometerleakdetectors(MSLD).Itisnotintendedtogiveacompletesetofspecificationsforanacceptancetestbutadescriptionofproceduresthatcanbeusedwithoutparticularcalibrationequipment.AnMSLDhasanintegralhighvacuumsystemformaintainingthesensingelement(massspectrometer)atlowoperatingpressureandforestablishingapartialpressurerelatedtotheincominggasflow.Thispressureismeasuredquantitativelybythemassspectrometer.Suchinstrumentsareabletoselectivelymeasuretheflowofatracergas.Inmostcasesthetracergaswillbehelium,flowingin/outofanobjectthroughaleak.Themethodsdescribedinthisstandardareapplicablewithoutrestrictionstoheliumasthetracergas.Forothergases,additionalprecautionsmaybenecessary.Thesemethodsareapplicabletocommonly-availableMSLD,basedonthepresentleveloftechnology,whichmaybeabletomeasureleakratesdownto10Pa·m/s.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:16P.;A4
【正文语种】:英语