ASTM D6224-23
(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
4.1 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.
4.2 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.
4.3 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.
4.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Buy Standard
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D6224 − 23
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 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* ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This practice covers the requirements for the effective
mendations issued by the World Trade Organization Technical
monitoring of mineral oil and phosphate ester fluid lubricating
Barriers to Trade (TBT) Committee.
oils in service auxiliary (non-turbine) equipment used for
power generation. Auxiliary equipment covered includes gears,
2. Referenced Documents
hydraulic systems, diesel engines, pumps, compressors, and
2
electrohydraulic control (EHC) systems. It includes sampling 2.1 ASTM Standards:
and testing schedules and recommended action steps, as well as D92 Test Method for Flash and Fire Points by Cleveland
information on how oils degrade. Open Cup Tester
NOTE 1—Other types of synthetic lubricants are sometimes used but are
D95 Test Method for Water in Petroleum Products and
not addressed in this practice because they represent only a small fraction
Bituminous Materials by Distillation
of the fluids in use. Users of these fluids should consult the manufacturer
D257 Test Methods for DC Resistance or Conductance of
to determine recommended monitoring practices.
Insulating Materials
1.2 This practice does not cover the monitoring of lubricat-
D445 Test Method for Kinematic Viscosity of Transparent
ing oil for steam and gas turbines. Rather, it is intended to
and Opaque Liquids (and Calculation of Dynamic Viscos-
complement Practice D4378.
ity)
1.3 The values stated in SI units are to be regarded as D664 Test Method for Acid Number of Petroleum Products
standard. No other units of measurement are included in this by Potentiometric Titration
standard. D665 Test Method for Rust-Preventing Characteristics of
Inhibited Mineral Oil in the Presence of Water
1.4 This standard does not purport to address all of the
D892 Test Method for Foaming Characteristics of Lubricat-
safety concerns, if any, associated with its use. It is the
ing Oils
responsibility of the user of this standard to establish appro-
D893 Test Method for Insolubles in Used Lubricating Oils
priate safety, health, and environmental practices and deter-
D943 Test Method for Oxidation Characteristics of Inhibited
mine the applicability of regulatory limitations prior to use.
Mineral Oils
1.5 This international standard was developed in accor-
D974 Test Method for Acid and Base Number by Color-
dance with internationally recognized principles on standard-
Indicator Titration
1
This practice is under the jurisdiction of ASTM 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 Nov. 1, 2023. Published November 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1998. Last previous edition approved in 2022 as D6224 – 22. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D6224-23. 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 − 23
D1169 Test Method for Specific Resistance (Resistivity) of cants by Trend Analysis Using Fourier Transform Infrared
Electrical Insulating Liquids (FT
...
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 − 22 D6224 − 23
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 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*
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
1
This practice is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricantsand is the direct responsibility of Subcommittee
D02.C0.01 on Turbine Oil Monitoring, Problems and Systems.
Current edition approved April 1, 2022Nov. 1, 2023. Published April 2022November 2023. Originally approved in 1998. Last previous edition approved in 20162022 as
D6224D6224 – 22. – 16. DOI: 10.1520/D6224-22.DOI: 10.1520/D6224-23.
*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 − 23
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
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
D892 Test Method for Foaming Characteristics of Lubricating Oils
D893 Test Method for Insolubles in Used Lubricating Oils
D943 Test Method for Oxidation Characteristics of Inhibited Mineral Oils
D974 Test Method for Acid and Base Number by Color-Indicator Titration
D1169 Test Method for Specific Resistance (Resistivity) of Electrical Insulating Liquids
D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by
Hydrometer Metho
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.