ASTM D6224-02
(Practice)Standard Practice for In-Service Monitoring of Lubricating Oil for Auxiliary Power Plant Equipment
Standard Practice for In-Service Monitoring of Lubricating Oil for Auxiliary Power Plant Equipment
SIGNIFICANCE AND USE
This practice is intended to assist users, particularly power plant operators, in maintaining effective control over their lubricating oils and lubrication monitoring program. This practice may be used to perform oil changes based on test results rather than on the basis of service time or calendar time. It is intended to save operating and maintenance expenses.
This practice is also intended to assist users in monitoring lubricating oils and guarding against excessive component wear, oil degradation, or contamination, thereby minimizing the potential of catastrophic machine problems that are more likely to occur in the absence of such a monitoring program.
This practice does not necessarily reference all of the current oil testing technologies and is not meant to preclude the use of alternative instrumentation or test methods which provide meaningful or trendable test data, or both. Some oil testing devices (typically used for screening oils which will be tested according to standard methods) provide trendable indicators which correlate to water, particulates, and other contaminants but do not directly measure these.
SCOPE
1.1 This practice covers the requirements for the effective monitoring of mineral oil and phosphate ester fluid lubricating oils in service auxiliary (non-turbine) equipment used for power generation. Auxiliary equipment covered includes gears, hydraulic systems, diesel engines, pumps, compressors, and electrohydraulic control (EHC) systems. It includes sampling and testing schedules and recommended action steps, as well as information on how oils degrade.
Note 1—Other types of synthetic lubricants are sometimes used but are not addressed in this practice because they represent only a small fraction of the fluids in use. Users of these fluids should consult the manufacturer to determine recommended monitoring practices.
1.2 This practice does not cover the monitoring of lubricating oil for steam and gas turbines. Rather, it is intended to complement Practice D 4378.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
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Designation:D6224–02
Standard Practice for
In-Service Monitoring of Lubricating Oil for Auxiliary Power
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Plant Equipment
This standard is issued under the fixed designation D6224; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
A more systematic approach to monitoring auxiliary power plant equipment can help to minimize
the high cost of oil changes and unplanned shutdowns. These avoided costs must be balanced against
the cost of sampling and laboratory testing.
This practice is designed to assist the user in planning and implementing a meaningful,
cost-effective program of sampling and testing of oils in use.Also covered are some important aspects
of interpretation of results and suggested action steps so as to maximize service life of the oil and
equipment.
1. Scope 2. Referenced Documents
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1.1 This practice covers the requirements for the effective 2.1 ASTM Standards:
monitoring of mineral oil and phosphate ester fluid lubricating D92 Test Method for Flash and Fire Points by Cleveland
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oils in service auxiliary (non-turbine) equipment used for Open Cup Tester
powergeneration.Auxiliaryequipmentcoveredincludesgears, D95 Test Method for Water in Petroleum Products and
hydraulic systems, diesel engines, pumps, compressors, and Bituminous Materials by Distillation
electrohydraulic control (EHC) systems. It includes sampling D96 Test Method for Water and Sediment in Crude Oil by
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andtestingschedulesandrecommendedactionsteps,aswellas Centrifuge Method Field Procedure
information on how oils degrade. D257 Test Methods for DC Resistance or Conductance of
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Insulating Materials
NOTE 1—Othertypesofsyntheticlubricantsaresometimesusedbutare
D445 Test Method for Kinematic Viscosity of Transparent
not addressed in this practice because they represent only a small fraction
and Opaque Liquids (and Calculation of Dynamic Viscos-
of the fluids in use. Users of these fluids should consult the manufacturer
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to determine recommended monitoring practices. ity)
D664 Test Method forAcid Number of Petroleum Products
1.2 This practice does not cover the monitoring of lubricat-
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by Potentiometric Titration
ing oil for steam and gas turbines. Rather, it is intended to
D665 Test Method for Rust-Preventing Characteristics of
complement Practice D4378.
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Inhibited Mineral Oil in the Presence of Water
1.3 The values stated in SI units are to be regarded as the
D892 Test Method for Foaming Characteristics of Lubricat-
standard.
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ing Oils
1.4 This standard does not purport to address all of the
D893 Test Method for Insolubles in Used Lubricating Oils
safety concerns, if any, associated with use. It is the responsi-
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bility of the user of this standard to establish appropriate safety
D943 Test Method for Oxidation Characteristics of Inhib-
and health practices and determine the applicability of regu-
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ited Mineral Oils
latory limitations prior to use.
D974 Test Method for Acid and Base Number by Color-
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Indicator Titration
D1169 Test Method for Specific Resistance (Resistivity) of
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Electrical Insulating Liquids
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This practice is under the jurisdiction ofASTM Committee D02 on Petroleum
ProductsandLubricantsandisthedirectresponsibilityofSubcommitteeD02.C0on
Turbine Oils.
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Current edition approved Nov. 10, 2002. Published February 2003. Originally Annual Book of ASTM Standards, Vol 05.01.
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approved in 1998. Last previous edition approved in 1998 as D6224–98. DOI: Annual Book of ASTM Standards, Vol 10.01.
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10.1520/D6224-02. Annual Book of ASTM Standards, Vol 10.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6224–02
D1298 Test Method for Density, Relative Density (Specific 3.3 This practice does not necessarily reference all of the
Gravity), or API Gravity of Crude Petroleum and Liquid currentoiltestingtechnologiesandisnotmeanttoprecludethe
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Petroleum Products by Hydrometer Method use of alternative instrumentation or test methods which
D1401 Test Method for Water Separability of Petroleum provide meaningful or trendable test data, or both. Some oil
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Oils and Synthetic Fluids testing devices (typically used for screening oils which will be
D1500 TestMethodforASTMColorofPetroleumProducts tested according to standard methods) provide trendable indi-
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(ASTM Color Scale) cators which correlate to water, particulates, and other con-
D1533 Test Method for Water in Insulating Liquids by taminants but do not directly measure these.
Coulometric Karl Fischer Titration
4. General Propert
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