ASTM D4304-06a
(Specification)Standard Specification for Mineral Lubricating Oil Used in Steam or Gas Turbines
Standard Specification for Mineral Lubricating Oil Used in Steam or Gas Turbines
ABSTRACT
This specification covers mineral lubricating oils used in steam and gas turbine lubricating systems where the performance requirements demand a highly refined mineral base oil compounded with rust and oxidation inhibitors plus selected additives as needed to control foam, wear, demulsibility, and so forth. This specification is intended to define the properties of new mineral oil-based turbine lubricating oils that are functionally interchangeable with existing oils of this type, are compatible with most existing machinery components, and with appropriate field maintenance, will maintain their functional characteristics. The lubricating oils shall meet the functional property limits specified for each type, as follows: ISO-viscosity grade; ASTM color; specific gravity, flash point, and pour point; water content and viscosity; visual examination; total acid number; emulsion characteristics; foaming characteristics; air release; rust preventing characteristics; copper corrosion; oxidation stability; 1000-h TOST sludge and total acid number; and cleanliness at the delivery stage.
SCOPE
1.1 This specification covers mineral oils used in steam and gas turbine lubrication systems where the performance requirements demand a highly refined mineral base oil compounded with rust and oxidation inhibitors plus selected additives as needed to control foam, wear, demulsibility, and so forth. This standard may also be applied to "combined cycle" turbine systems, where a single lubricant circulating system is used to supply oil to a steam and gas turbine configured in tandem either on a single or separate shaft for enhanced energy efficiency.
1.2 This specification is intended to define the properties of mineral oil-based turbine lubricating oils that are functionally interchangeable with existing oils of this type, are compatible with most existing machinery components, and with appropriate field maintenance, will maintain their functional characteristics.
1.3 This specification is intended to define only new lubricating oil before it is installed in the machinery.
1.4 This specification is intended to be used as a guide. It is possible that oils that do not meet this specification may perform satisfactorily in some turbines.
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Standards Content (Sample)
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Designation:D4304 −06a
StandardSpecification for
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Mineral Lubricating Oil Used in Steam or Gas Turbines
This standard is issued under the fixed designation D4304; 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.
1. Scope* D445 Test Method for Kinematic Viscosity of Transparent
and Opaque Liquids (and Calculation of Dynamic Viscos-
1.1 This specification covers mineral oils used in steam and
ity)
gasturbinelubricationsystemswheretheperformancerequire-
D664 Test Method for Acid Number of Petroleum Products
ments demand a highly refined mineral base oil compounded
by Potentiometric Titration
with rust and oxidation inhibitors plus selected additives as
D665 Test Method for Rust-Preventing Characteristics of
needed to control foam, wear, demulsibility, and so forth. This
Inhibited Mineral Oil in the Presence of Water
standard may also be applied to “combined cycle” turbine
D892 Test Method for Foaming Characteristics of Lubricat-
systems, where a single lubricant circulating system is used to
ing Oils
supply oil to a steam and gas turbine configured in tandem
D943 Test Method for Oxidation Characteristics of Inhibited
either on a single or separate shaft for enhanced energy
Mineral Oils
efficiency.
D974 Test Method for Acid and Base Number by Color-
1.2 This specification is intended to define the properties of
Indicator Titration
mineral oil-based turbine lubricating oils that are functionally
D1401 TestMethodforWaterSeparabilityofPetroleumOils
interchangeable with existing oils of this type, are compatible
and Synthetic Fluids
with most existing machinery components, and with appropri-
D1500 Test Method forASTM Color of Petroleum Products
ate field maintenance, will maintain their functional character-
(ASTM Color Scale)
istics.
D2272 Test Method for Oxidation Stability of Steam Tur-
1.3 This specification is intended to define only new lubri- bine Oils by Rotating Pressure Vessel
D2422 Classification of Industrial Fluid Lubricants by Vis-
cating oil before it is installed in the machinery.
cosity System
1.4 This specification is intended to be used as a guide. It is
D3339 Test Method forAcid Number of Petroleum Products
possible that oils that do not meet this specification may
by Semi-Micro Color Indicator Titration
perform satisfactorily in some turbines.
D3427 Test Method forAir Release Properties of Petroleum
1.5 The values stated in SI units are to be regarded as
Oils
standard. No other units of measurement are included in this
D4052 Test Method for Density, Relative Density, and API
standard.
Gravity of Liquids by Digital Density Meter
D4057 Practice for Manual Sampling of Petroleum and
2. Referenced Documents
Petroleum Products
2
2.1 ASTM Standards:
D4310 Test Method for Determination of Sludging and
D92 Test Method for Flash and Fire Points by Cleveland
Corrosion Tendencies of Inhibited Mineral Oils
Open Cup Tester
D5182 Test Method for Evaluating the Scuffing Load Ca-
D97 Test Method for Pour Point of Petroleum Products
pacity of Oils (FZG Visual Method)
D130 Test Method for Corrosiveness to Copper from Petro-
D6304 Test Method for Determination of Water in Petro-
leum Products by Copper Strip Test
leum Products, Lubricating Oils, and Additives by Cou-
lometric Karl Fischer Titration
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2.2 ISO Standards:
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This specification is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee ISO 4406 Particle Count Analysis
D02.C0.01 on Turbine Oil Monitoring, Problems and Systems.
Current edition approved July 1, 2006. Published July 2006. Originally approved
in 1984. Last previous edition approved in 2006 as D4304–06. DOI: 10.1520/
D4304-06A.
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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
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Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
*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
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D4304−06a
3. Terminology inhibitors in addition to other additives as needed to meet
specified performance characteristics. Type III oils are formu-
3.1 Definitions:
lated for use in turbine sets where bearing temperatures may
3.1.1 Type I mineral oils, n—oils for steam and gas turbine
exceed 110°C. The turbine lub
...
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