ASTM D6224-16
(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
3.1 This practice is intended to help users, particularly power plant operators, maintain effective control over their mineral lubricating oils and lubrication monitoring program. This practice may be used to perform oil changes based on oil condition and test results rather than on the basis of service time or calendar time. It is intended to save operating and maintenance expenses.
3.2 This practice is also intended to help users monitor the condition of mineral lubricating oils and guard 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 an oil condition monitoring program.
3.3 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 that provide meaningful or trendable test data, or both. Some oil testing devices and sensors (typically used for screening oils that will be tested according to standard methods) provide trendable indicators that correlate to water, particulates, and other contaminants but do not directly measure these.
3.4 This practice is intended for mineral oil products, and not for synthetic type of products, with the exception of phosphate esters fluids typically used in power plant control systems.
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 D4378.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its 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.
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Designation: D6224 − 16
Standard Practice for
In-Service Monitoring of Lubricating Oil for Auxiliary Power
1
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.
Thispracticeisdesignedtohelptheuserevaluatetheconditionofthelubricantthroughitslifecycle
bycarryingoutameaningfulprogramofsamplingandtestingofoilsinuse.Thispracticeisperformed
in order to collect data and monitor trends which suggest any signs of lubricant deterioration and to
ensure a safe, reliable, and cost-effective operation of the monitored plant equipment.
1. Scope* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This practice covers the requirements for the effective
D92 Test Method for Flash and Fire Points by Cleveland
monitoring of mineral oil and phosphate ester fluid lubricating
Open Cup Tester
oils in service auxiliary (non-turbine) equipment used for
D95 Test Method for Water in Petroleum Products and
powergeneration.Auxiliaryequipmentcoveredincludesgears,
Bituminous Materials by Distillation
hydraulic systems, diesel engines, pumps, compressors, and
D257 Test Methods for DC Resistance or Conductance of
electrohydraulic control (EHC) systems. It includes sampling
Insulating Materials
andtestingschedulesandrecommendedactionsteps,aswellas
D445 Test Method for Kinematic Viscosity of Transparent
information on how oils degrade.
and Opaque Liquids (and Calculation of Dynamic Viscos-
NOTE1—Othertypesofsyntheticlubricantsaresometimesusedbutare
ity)
not addressed in this practice because they represent only a small fraction
D664 Test Method for Acid Number of Petroleum Products
of the fluids in use. Users of these fluids should consult the manufacturer
to determine recommended monitoring practices.
by Potentiometric Titration
D665 Test Method for Rust-Preventing Characteristics of
1.2 This practice does not cover the monitoring of lubricat-
Inhibited Mineral Oil in the Presence of Water
ing oil for steam and gas turbines. Rather, it is intended to
D892 Test Method for Foaming Characteristics of Lubricat-
complement Practice D4378.
ing Oils
1.3 The values stated in SI units are to be regarded as
D893 Test Method for Insolubles in Used Lubricating Oils
standard. No other units of measurement are included in this
D943 Test Method for Oxidation Characteristics of Inhibited
standard.
Mineral Oils
D974 Test Method for Acid and Base Number by Color-
1.4 This standard does not purport to address all of the
Indicator Titration
safety concerns, if any, associated with its use. It is the
D1169 Test Method for Specific Resistance (Resistivity) of
responsibility of the user of this standard to establish appro-
Electrical Insulating Liquids
priate safety and health practices and determine the applica-
D1298 Test Method for Density, Relative Density, or API
bility of regulatory limitations prior to use.
Gravity of Crude Petroleum and Liquid Petroleum Prod-
ucts by Hydrometer Method
1
This practice is under the jurisdiction ofASTM Committee D02 on Petroleum
Products, Liquid Fuels, and Lubricantsand is the direct responsibility of Subcom-
2
mittee D02.C0.01 on Turbine Oil Monitoring, Problems and Systems. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2016. Published November 2016. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1998. Last previous edition approved in 2009 as D6224 – 09. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D6224-16. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6224 − 16
D1401 TestMethodforWaterSeparabilityofPetroleumOils niques to Eliminate the Contribution of Water and Inter-
and Synthetic Fluids fering Soft Particles by Light Extinction
D7669 Guide for Practical Lubricant Condition Data Trend
D1500 Test Method forASTM Color of Petroleum Products
Analysis
(ASTM Color Scale)
D7687 Test Method for Measurement of CellularAdenosine
D1533 Test Method for Water in Insulating Liquids by
Triphosphate in Fuel, Fuel/Water Mixtures, and Fuel-
Coulometric Ka
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6224 − 09 D6224 − 16
Standard Practice for
In-Service Monitoring of Lubricating Oil for Auxiliary Power
1
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 help the user plan and implement 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.
This practice is designed to help the user evaluate the condition of the lubricant through its life cycle
by carrying out a meaningful program of sampling and testing of oils in use. This practice is performed
in order to collect data and monitor trends which suggest any signs of lubricant deterioration and to
ensure a safe, reliable, and cost-effective operation of the monitored plant equipment.
1. Scope 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 D4378.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation
3
D96 Test Method for Water and Sediment in Crude Oil by Centrifuge Method (Field Procedure) (Withdrawn 2000)
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D664 Test Method for Acid Number of Petroleum Products by Potentiometric Titration
D665 Test Method for Rust-Preventing Characteristics of Inhibited Mineral Oil in the Presence of Water
1
This practice is under the jurisdiction of ASTM Committee D02 on Petroleum Products Products, Liquid Fuels, and Lubricantsand is the direct responsibility of
Subcommittee D02.C0.01 on Turbine Oil Monitoring, Problems and Systems.
Current edition approved July 1, 2009Oct. 1, 2016. Published November 2009November 2016. Originally approved in 1998. Last previous edition approved in 20022009
as D6224–02. DOI: 10.1520/D6224-09. – 09. DOI: 10.1520/D6224-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6224 − 16
D892 Test Method for Foaming Characteristics of Lubricating Oils
D893 Test Method for Insolubles in Used Lubricating Oils
D943 Test Method for Oxidation Characteristi
...
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