ASTM_D_7889_-_13.pdf

Designation:D788913Standard 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 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.Scope1.1 This test method describes the use of a grating spec-trometer to analyze properties of an in-service fluid samplewhich are 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-containedunit 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 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 cm-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 and health practices and determine the applica-bility of regulatory limitations prior to use.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 FourierTransform 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 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 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 Fitness 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 AnalysisE932 Practice for Describing and Measuring Performance ofDispersive Infrared SpectrometersE1655 Practices for Infrared Multivariate QuantitativeAnalysisE2412 Practice for Condition Monitoring of In-Service Lu-bricants by Trend Analysis Using Fourier TransformInfrared(FT-IR)SpectrometryE2617 Practice for Validation of Empirically Derived Mul-tivariate Calibrations3.Terminology3.1 For definitions of terms relating to infrared spectroscopyused in this test method,refer to Terminology E131.For1This 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 Testing Practices and Techniques Related toIn-Service Lubricants.Current edition approved Oct.1,2013.Published October 2013.DOI:10.1520/D7889-13.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 definition of terms related to infrared-based in-service fluidcondition monitoring,refer to Practice D7418.3.2 Definitions of Terms Specific to This Standard:3.2.1 absorbance units(AU),nunits of measurement ofthe raw absorbance spectrum which is obtained using thedefinition described in Section 8(Theory for a Single Com-pound Analysis)of Practice E168,which is not normalized forpathlength.3.2.2 cell background,na single-beam spectrum that isobtained on a clean,empty wipe-clean transmission cell.3.2.3 mid-infrared grating spectrometer,na spectrometerwhich operates in the mid-infra