SAE ARP4285 Aerospace - Evaluation of Particulate Contamination in Hydraulic Fluid - Membrane Procedure
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Product Code:SAE ARP4285
Title:Aerospace - Evaluation of Particulate Contamination in Hydraulic Fluid - Membrane Procedure
Issuing Committee:A-6c1 Contamination And Filtration Committee
Scope:This SAE Aerospace Recommended Practice (ARP) establishes a method for evaluating the particulate matter extracted from theh working fluid of a hydraulic system or component using a membrane. The amount of particulate matter deposited on the membrane due to filtering a given quantity of fluid is visually compared against a standard membrane in order to provide an indication of the cleanliness level of the fluid. A particular feature of this method is the membrane preparation to achieve an even particulate distribution on the membrane suitable for other applications.Membrane evaluation using standard membranes, described in this document, is an alternative technique to counting with either an optical microscope (ARP598) or an automatic particle counter (ISO 11500). The latter particle counting procedures are considered more rpecise. This procedure shall not be used as an alternative to particle counting unless agreed to by the customer since the results by this procedure may differ from those by particle counting, even though the standard membrane correlates to a specific particle count.
【英文标准名称】:Fibreopticcommunicationsubsystembasictestprocedures-Testproceduresforgeneralcommunicationsubsystems-Collectionandreductionoftwo-dimensionalnearfielddataformultimodefibrelasertransmitters
【原文标准名称】:光纤通信子系统基本试验程序.一般通信子系统的试验程序.多模纤维激光发射机用二维近场数据的采集和整理
【标准号】:BSEN61280-1-4-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-05-13
【实施或试行日期】:2003-05-13
【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】:发射机;降低;二维;电信;光学;光波导;电气工程;光纤;测量;试验;通信系统;规程;多模纤维;测量装置;发射机输出;获得;纤维;近场;数据
【英文主题词】:Acquisition;Communicationsystems;Data;Dataacquisition;Documentations;Electricalengineering;Fibreoptics;Fibres;Laserengineering;Laserequipment;Lasers;Mathematicalcalculations;Measurement;Measuringdevices;Measuringtechniques;Methods;Multilingual;Multimodefibres;Nearfield;Nearfieldmeasuringvalue;Opticalwaveguides;Optics;Procedures;Ratings;Reducing;Telecommunications;Testing;Transmitteroutput;Transmitters;Two-dimensional
【摘要】:ThispartofIEC61280setsforthastandardprocedureforthecollectionoftwo-dimensionalfibreopticnearfieldgrayscaledataandsubsequentreductiontoone-dimensionaldataexpressedasasetofthreesampledparametricfunctionsofradiusfromthefibre'sopticalcenter.Theobjectofthisstandardistoreducemeasurementerrorsandinter-laboratoryvariation,supportingaccuratemathematicalpredictionofminimumguaranteedlinklengthingigabitandtengigabitfibreopticdatacommunicationssystems.Theseradialfunctionsareintendedtocharacterizefibreopticlasersourcesforuseinmathematicalmodelspredictingtheminimumguaranteedlengthofacommunicationslink.Althoughavailableasabyproduct,estimationofthenearfielddiameterisnotanobjective.
【中国标准分类号】:M33
【国际标准分类号】:33_180_01
【页数】:24P;A4
【正文语种】:英语
【英文标准名称】:Inlandnavigationvessels-Manuallyoperatedcouplingdevicesforpushtows-Safetyrequirementsandmaindimensions(ISO6218:2005);GermanversionENISO6218:2005
【原文标准名称】:内河航行船舶.顶推船用手动连接装置.安全要求和主要尺寸
【标准号】:ENISO6218-2005
【标准状态】:现行
【国别】:
【发布日期】:2005-07
【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】:操作说明书;安全;造船;规范(验收);绞车;内河运输;生产执照;设计;手动的;主要尺寸;起升卷筒;内河船舶;夹紧装置;顶推;名称与符号;货船;缆索调节器;安全工程;尺寸;绳配件;基础;顶推系统;试验;安全要求;作标记;离合器;设备;额定值;力学;定义;规范;事故预防
【英文主题词】:Accidentprevention;Cableadjusters;Cargoships;Clampingdevices;Clutches;Definition;Definitions;Design;Designations;Dimensions;Equipment;Foundations;Handoperated;Hoistingdrums;Inlandships;Inlandwaterwaytransport;Maindimensions;Manufacturerscertificates;Marking;Mechanic;Operatinginstructions;Pushtows;Pushedtowsystems;Ratings;Ropefittings;Safety;Safetyengineering;Safetyrequirements;Shipbuilding;Specification(approval);Specifications;Testing;Winches
【摘要】:
【中国标准分类号】:U20
【国际标准分类号】:47_020_50;47_060
【页数】:13P.;A4
【正文语种】:英语