1、Designation:D791914(Reapproved 2021)Standard Guide forFilter Debris Analysis(FDA)Using Manual or AutomatedProcesses1This standard is issued under the fixed designation D7919;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of
2、 last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONTypically,main lubrication systems incorporate in-system filters to maintain an appropriatelubricant cleanliness level du
3、ring operation.Since the lubrication filter element removes and retainsa major portion of the solid contamination in the lubrication system,evaluation of the debris capturedwithin the filter element aids in the determination of machine condition and root cause analysis(RCA).The past decade has seen
4、more widespread use of filter debris analysis(FDA)as a condition-monitoring tool to detect and analyze abnormal contaminant ingression into the lube system andpredict lube system component wear.This is in part due to the increased use of finer filtration inmachinery which results in a decrease of we
5、ar debris available for detection by traditional sampled oilanalysis.The U.S.military and other militaries around the world as well as Original EquipmentManufacturers have adopted FDAtechniques.Commercial in-service oil laboratories are also utilizinga wide range of FDA techniques,from manual to aut
6、omated.It is necessary to provide a guide toimprove analysis and comparison of data.1.Scope1.1 This guide pertains to removal and analysis techniquesto extract debris captured by in-service lubricant and hydraulicfilters and to analyze the debris removed.1.2 This guide suggests techniques to remove,
7、collect andanalyze debris from filters in support of machinery healthcondition monitoring.1.3 Debris removal techniques range from manual to auto-mated.1.4 Analysis techniques vary from visual,particle counting,microscopic,x-ray fluorescence(XRF),atomic emission spec-troscopy(AES),and scanning elect
8、ron microscopy energydispersive x-rays(SEMEDX).1.5 This guide is suitable for use with the following filtertypes:screw on,metal mesh,and removable diagnostic layerfilters.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of
9、 the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization establish
10、ed in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D5185 Test Method for Multielement Determination ofUsed and Unused Lubr
11、icating Oils and Base Oils byInductively Coupled Plasma Atomic Emission Spectrom-etry(ICP-AES)D6595 Test Method for Determination of Wear Metals andContaminants in Used Lubricating Oils or Used HydraulicFluids by Rotating Disc ElectrodeAtomic Emission Spec-trometryD7669 Guide for Practical Lubricant
12、 Condition Data TrendAnalysis1This guide is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and is the direct responsibility of Subcom-mittee D02.96.06 on Practices and Techniques for Prediction and Determination ofMicroscopic Wear and Wear-related Prope
13、rties.Current edition approved Oct.1,2021.Published November 2021.Originallyapproved in 2014.Last previous edition approved in 2017 as D7919 14(2017).DOI:10.1520/D7919-14R21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annu
14、al Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recogni
15、zed principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1D7684 Guide for Microscopic Characterization of Particlesfrom In-Serv
16、ice LubricantsD7685 Practice for In-Line,Full Flow,Inductive Sensor forFerromagnetic and Non-ferromagnetic Wear Debris De-termination and Diagnostics for Aero-Derivative and Air-craft Gas Turbine Engine BearingsD7690 Practice for Microscopic Characterization of Par-ticles from In-Service Lubricants by Analytical Ferrogra-phyD7720 Guide for Statistically Evaluating Measurand AlarmLimits when Using Oil Analysis to Monitor Equipmentand Oil for Fitness and ContaminationD7898 Practice for Lubrication
