ASTM_D_6224_-_22.pdf

Designation:D622422Standard Practice forIn-Service Monitoring of Lubricating Oil for Auxiliary PowerPlant Equipment1This standard is issued under the fixed designation D6224;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONA more systematic approach to monitoring auxiliary power plant equipment can help to minimizethe high cost of oil changes and unplanned shutdowns.These avoided costs must be balanced againstthe cost of sampling and laboratory testing.This practice is designed to help the user evaluate the condition of the lubricant through its life cycleby carrying out a meaningful program of sampling and testing of oils in use.This practice is performedin order to collect data and monitor trends which suggest any signs of lubricant deterioration and toensure a safe,reliable,and cost-effective operation of the monitored plant equipment.1.Scope*1.1 This practice covers the requirements for the effectivemonitoring of mineral oil and phosphate ester fluid lubricatingoils in service auxiliary(non-turbine)equipment used forpower generation.Auxiliary equipment covered includes gears,hydraulic systems,diesel engines,pumps,compressors,andelectrohydraulic control(EHC)systems.It includes samplingand testing schedules and recommended action steps,as well asinformation on how oils degrade.NOTE1Other types of synthetic lubricants are sometimes used but arenot addressed in this practice because they represent only a small fractionof the fluids in use.Users of these fluids should consult the manufacturerto determine recommended monitoring practices.1.2 This practice does not cover the monitoring of lubricat-ing oil for steam and gas turbines.Rather,it is intended tocomplement Practice D4378.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of 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.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established 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:2D92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD95 Test Method for Water in Petroleum Products andBituminous Materials by DistillationD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids(and Calculation of Dynamic Viscos-ity)D664 Test Method for Acid Number of Petroleum Productsby Potentiometric TitrationD665 Test Method for Rust-Preventing Characteristics ofInhibited Mineral Oil in the Presence of WaterD892 Test Method for Foaming Characteristics of Lubricat-ing OilsD893 Test Method for Insolubles in Used Lubricating OilsD943 Test Method for Oxidation Characteristics of InhibitedMineral OilsD974 Test Method for Acid and Base Number by Color-Indicator Titration1This practice is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricantsand is the direct responsibility of Subcom-mittee D02.C0.01 on Turbine Oil Monitoring,Problems and Systems.Current edition approved April 1,2022.Published April 2022.Originallyapproved in 1998.Last previous edition approved in 2016 as D6224 16.DOI:10.1520/D6224-22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized 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.1D1169 Test Method for Specific Resistance(Resistivity)ofElectrical Insulating LiquidsD1298 Test Method for Density,Relative Density,or APIGravity of Crude Petroleum and Liquid Petroleum Prod-ucts by Hydrometer MethodD1401 Test Method for Water Separability of Petroleum Oilsand Synthetic FluidsD1500 Test Method for ASTM Color of Petroleum Products(ASTM Color Scale)D1533 T