热门站点| 世界资料网 | 专利资料网 | 世界资料网论坛
收藏本站| 设为首页| 首页

BS ISO 12103-2-1998 道路车辆.过滤器评估用试验粉尘.氧化铝试验粉尘

作者:标准资料网 时间:2024-04-29 11:36:08  浏览:8123   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Roadvehicles-Testdustforfilterevaluation-Aluminiumoxidetestdust
【原文标准名称】:道路车辆.过滤器评估用试验粉尘.氧化铝试验粉尘
【标准号】:BSISO12103-2-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-05-15
【实施或试行日期】:1998-05-15
【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】:名称与符号;材料的物理性质;安全措施;氧化铝;道路车辆零部件;过滤器;粒度分布;试样;滤油器;道路车辆工程;试验设备;试样制备;发动机燃料系统;尘埃;性能试验;润滑系统部件;按大小分级;燃油滤油器
【英文主题词】:Airfilters;Chemicalcomposition;Designations;Dust;Grades(quality);Motorvehicles;Oilfilters;Particlesize;Performancetesting;Roadvehicles;Sand;Sizeclassification;Testequipment;Testingdevices;Testingdust
【摘要】:ThispartofISO12103specifiestheparticlesizedistributionoffiveinorganictestdustsusedfortheevaluationoffilters.Thesedustareusedinconjunctionwithvarioustestproceduresdesignedtoevaluate,ingeneral,fuelandlubricatingoilfiltersforinternalcombustionenginesbygravimetricmethods.Thedustsmayalsobeusedforanumberofotherapplications,suchasforabrasiontests,wheredistinct,knownparticlesizedistributionsofhard,abrasivematerialarerequired.
【中国标准分类号】:T04
【国际标准分类号】:43_060_20;43_060_40
【页数】:18P;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:Non-destructivetesting-Ultrasonicinspection-Characterizationofsearchunitandsoundfield
【原文标准名称】:无损检测超声波探伤探测仪和声场特性
【标准号】:ISO10375-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC135
【标准类型】:()
【标准水平】:()
【中文主题词】:试验条件;无损检验;超声检验;试验设备;声传输;特性
【英文主题词】:Characteristics;Non-destructivetesting;Soundtransmission;Testequipment;Testingconditions;Ultrasonictesting
【摘要】:ThisInternationalStandardestablishesproceduresforspecifyingcertainultrasonicsearchunitcharacteristicsandformeasuringtheassociatedsoundfield.Theaimistoestablishuniformityoftestingtechniques,toformabasisfortheinterpretationofresultsobtainedbydifferentlaboratoriesandatdifferenttimes.NotethatthisInternationalStandardestablishesnoacceptancecriteria;however,itdoesestablishthetechnicalbasisforcriteriathatmaybedefinedbyuserparties.ISO2400describesacalibrationblockusedinweldinspectionforcheckingtheperformanceoftheultrasonicinstrumentandsearchunit.Tofurtherenhancethegeneralultrasonicinspectioncapability,informationconcerningthesearchunit'stimedomainresponse,frequencyresponse(alsoreferredtoasfrequencyspectrum,frequencyanalysis,spectrumanalysisandsignatureanalysis)andsoundfieldmustbeknownbeforereliabledetectionandcharacterizationofflawscanbeachieved.Thesearchunitsdiscussedhereinarestraight-beamandangle-beamsearchunitswithanominalultrasonicfrequencyfrom0,5MHzto15MHz.Surfacewavesearchunitsarenotincludedinthisstandard.Thisstandardprovidesproceduresforspecifyingsoundfieldparametersaswellasmethodsofmeasurementinimmersiontests.Thisstandarddoesnotaddresssoundfieldmeasurementincontacttests.ThisInternationalStandarddescribesmeasurementproceduresforevaluatingcharacteristicsofultrasonicsearchunitsanddescribestechniquesusedforobtainingsoundfielddataproducedbyelectricallypulse-excitedsearchunitsusedinthefieldorinthelaboratory.Thecharacteristicparametersdiscussedinthisstandardaretheupper,lowerandcentrefrequencies,thewavelength,thebandwidth,thetimedomainandfrequencydomainresponses,thenear-fieldlength,thehalf-angleofbeamspreadforsearchunitsofdifferentshapesinfreefield,echosoundmeasurements,beamprofiles,theimpedanceandtherelativesensitivity.Formatsforspecifyingbothflat-faceandfocusedsearchunitsaregiven.Toprovidebaselineinformationandtocheckpossibleperformancedegradation,theelectricalpropertiesofthesearchunitaremeasuredindependentlyoftheultrasonicinstrument.Theelectricalimpedanceandsensitivityaremeasuredatspecificfrequenciesselectedforeachsearchunit.Theelectricalimpedancecorrespondstothecomplexinputimpedanceofthesearchunitandthesensitivityofthesearchunitisameasureoftheelectroacousticefficiencyoftheunit.Theseproceduresaredescribedin4.6and4.7,respectively.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:17P;A4
【正文语种】:英语


【英文标准名称】:Multiprocessorcontrolsystemforindustrialmachines(MPST);parallelbus
【原文标准名称】:操作机(MPST)的多重处理控制系统.平行总线
【标准号】:DIN66264T.1-1983
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:



版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
如本站内容有侵犯您的合法权益,请和我们取得联系,我们将立即改正或删除。
京ICP备14017250号-1