1、Designation:D788921Standard Test Method forField Determination of In-Service Fluid Properties Using IRSpectroscopy1This standard is issued under the fixed designation D7889;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.1.Scope*1.1 This test method describes the use of a grating spec-trometer to analyze properties of an in-service fluid samplewhich are
3、 indicative of the status of that fluid and relatedmachinery.1.2 This test method provides a means for the assessment ofin-service fluid properties using infrared spectroscopy.It de-scribes a methodology for sampling,performing analysis,andproviding key in-service fluid properties with a self-contai
4、nedunit that is meant for field use.It provides analysis of in-servicefluids at any stage of their useful life,including newly utilizedfluid.1.3 In particular,these key in-service fluid properties in-clude oxidation,nitration,sulfation,soot,and antiwear addi-tives.They are applicable for hydrocarbon
5、 type(API GroupI-IV)fluids from machinery lubricants,including reciprocatingengine oils,turbine oils,hydraulic oils,and gear oils.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4.1 ExceptionThe unit for wavenumbers is in c
6、m-1.1.5 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.
7、1.6 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
8、Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD7412 Test Method for Condition Monitoring of PhosphateAntiwear Additives in In-Service Petroleum and Hydro-carbon Based Lubricants by TrendAnalysis Using FourierTransfo
9、rm Infrared(FT-IR)SpectrometryD7414 Test Method for Condition Monitoring of Oxidationin In-Service Petroleum and Hydrocarbon Based Lubri-cants by TrendAnalysis Using Fourier Transform Infrared(FT-IR)SpectrometryD7415 Test Method for Condition Monitoring of SulfateBy-Products in In-Service Petroleum
10、and HydrocarbonBased Lubricants by Trend Analysis Using Fourier Trans-form Infrared(FT-IR)SpectrometryD7418 Practice for Set-Up and Operation of Fourier Trans-form Infrared(FT-IR)Spectrometers for In-Service OilCondition MonitoringD7624 Test Method for Condition Monitoring of Nitration inIn-Service
11、Petroleum and Hydrocarbon-Based Lubricantsby Trend Analysis Using Fourier Transform Infrared(FT-IR)SpectrometryD7669 Guide for Practical Lubricant Condition Data TrendAnalysisD7720 Guide for Statistically Evaluating Measurand AlarmLimits when Using Oil Analysis to Monitor Equipmentand Oil for Fitnes
12、s and ContaminationD7844 Test Method for Condition Monitoring of Soot inIn-Service Lubricants by Trend Analysis using FourierTransform Infrared(FT-IR)SpectrometryE131 Terminology Relating to Molecular SpectroscopyE168 Practices for General Techniques of Infrared Quanti-tative AnalysisE177 Practice f
13、or Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study to1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.96.03 on FTIR Testi
14、ng Practices and Techniques Related toIn-Service Lubricants.Current edition approved July 1,2021.Published August 2021.Originallyapproved in 2013.Last previous edition approved in 2013 as D7889 13.DOI:10.1520/D7889-21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM
15、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
16、 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.1Determine the Precision of a Test MethodE932 Practice for Describing and Measuring Performance ofDispersive Infrared SpectrometersE1655 Practices for Infrared M
