ASTM D4310-09
(Test Method)Standard Test Method for Determination of Sludging and Corrosion Tendencies of Inhibited Mineral Oils
Standard Test Method for Determination of Sludging and Corrosion Tendencies of Inhibited Mineral Oils
SIGNIFICANCE AND USE
Insoluble material may form in oils that are subjected to oxidizing conditions.
Significant formation of oil insolubles or metal corrosion products, or both, during this test may indicate that the oil will form insolubles or corrode metals, or both, during field service. However, no correlation with field service has been established.
SCOPE
1.1 This test method covers and is used to evaluate the tendency of inhibited mineral oil based steam turbine lubricants and mineral oil based anti-wear hydraulic oils to corrode copper catalyst metal and to form sludge during oxidation in the presence of oxygen, water, and copper and iron metals at an elevated temperature. The test method is also used for testing circulating oils having a specific gravity less than that of water and containing rust and oxidation inhibitors.
Note 1—During round robin testing copper and iron in the oil, water and sludge phases were measured. However, the values for the total iron were found to be so low (that is, below 0.8 mg), that statistical analysis was inappropriate. The results of the cooperative test program are available (see Section 17).
1.2 This test method is a modification of Test Method D943 where the oxidation stability of the same kinds of oils is determined by following the acid number of oil. The number of test hours required for the oil to reach an acid number of 2.0 mg KOH/g is the oxidation lifetime.
1.3 Procedure A of this test method requires the determination and report of the weight of the sludge and the total amount of copper in the oil, water, and sludge phases. Procedure B requires the sludge determination only. The acid number determination is optional for both procedures.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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. For specific warning statements, see Section 7 and X1.1.5.
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Designation:D4310–09
Standard Test Method for
Determination of Sludging and Corrosion Tendencies of
1
Inhibited Mineral Oils
This standard is issued under the fixed designation D4310; 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* 2. Referenced Documents
2
1.1 This test method covers and is used to evaluate the 2.1 ASTM Standards:
tendency of inhibited mineral oil based steam turbine lubri- A510 Specification for General Requirements for Wire
cants and mineral oil based anti-wear hydraulic oils to corrode Rods and Coarse Round Wire, Carbon Steel
copper catalyst metal and to form sludge during oxidation in B1 Specification for Hard-Drawn Copper Wire
thepresenceofoxygen,water,andcopperandironmetalsatan D664 Test Method forAcid Number of Petroleum Products
elevated temperature. The test method is also used for testing by Potentiometric Titration
circulating oils having a specific gravity less than that of water D874 Test Method for Sulfated Ash from Lubricating Oils
and containing rust and oxidation inhibitors. and Additives
D943 Test Method for Oxidation Characteristics of Inhib-
NOTE 1—During round robin testing copper and iron in the oil, water
ited Mineral Oils
and sludge phases were measured. However, the values for the total iron
D1193 Specification for Reagent Water
were found to be so low (that is, below 0.8 mg), that statistical analysis
was inappropriate. The results of the cooperative test program are D3339 Test Method for Acid Number of Petroleum Prod-
available (see Section 16).
ucts by Semi-Micro Color Indicator Titration
D4057 Practice for Manual Sampling of Petroleum and
1.2 This test method is a modification of Test Method D943
Petroleum Products
where the oxidation stability of the same kinds of oils is
E1 Specification for ASTM Liquid-in-Glass Thermometers
determinedbyfollowingtheacidnumberofoil.Thenumberof
3
2.2 Energy Institute Standard:
test hours required for the oil to reach an acid number of 2.0
Specification for IP Standard Thermometers
mg KOH/g is the oxidation lifetime.
4
2.3 British Standard:
1.3 Procedure A of this test method requires the determina-
BS 1829 Reference Tables for Iron v. Constantan Thermo-
tion and report of the weight of the sludge and the total amount
couples
of copper in the oil, water, and sludge phases. Procedure B
requires the sludge determination only. The acid number
3. Terminology
determination is optional for both procedures.
3.1 Definitions:
1.4 The values stated in SI units are to be regarded as
3.1.1 sludge—a precipitate or sediment from oxidized min-
standard. No other units of measurement are included in this
eral oil and water.
standard.
1.5 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
4.1 An oil sample is contacted with oxygen in the presence
responsibility of the user of this standard to establish appro-
of water and an iron-copper catalyst at 95°C for 1000 h. The
priate safety and health practices and determine the applica-
weight of insoluble material is determined gravimetrically by
bility of regulatory limitations prior to use. For specific
warning statements, see Section 7 and X1.1.5.
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
1
This test method is under the jurisdiction of ASTM Committee D02 on Standards volume information, refer to the standard’s Document Summary page on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee the ASTM website.
3
D02.09.0C on Oxidation of Turbine Oils. Available from Energy Institute, 61 New Cavendish St., London WIM, 8AR,
Current edition approved Oct. 1, 2009. Published November 2009. Originally England.
4
approved in 1983. Last previous edition approved in 2006 as D4310–06b. DOI: Available from British Standards Institute (BSI), 389 Chiswick High Rd.,
10.1520/D4310-09. London W4 4AL, U.K.
*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 ----------------------
D4310–09
All dimensions are in millimetres (inches)
NOTE 1—The oxidation test tube has a calibration line at 300 mL. This calibration applies to the test tube alone at 20°C.
NOTE 2—Open tube ends to be ground and fire-polished.
FIG. 1 Oxidation Cell
attained an acid number >2.0 mg KOH/g). Instructions for these optional
filtration of the oxidation tub
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D4310–06b Designation:D4310–09
Standard Test Method for
Determination of Sludging and Corrosion Tendencies of
1
Inhibited Mineral Oils
This standard is issued under the fixed designation D4310; 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*
1.1 This test method covers and is used to evaluate the tendency of inhibited mineral oil based steam turbine lubricants and
mineral oil based anti-wear hydraulic oils to corrode copper catalyst metal and to form sludge during oxidation in the presence
of oxygen, water, and copper and iron metals at an elevated temperature. The test method is also used for testing circulating oils
having a specific gravity less than that of water and containing rust and oxidation inhibitors.
NOTE 1—During round robin testing copper and iron in the oil, water and sludge phases were measured. However, the values for the total iron were
foundtobesolow(thatis,below0.8mg),thatstatisticalanalysiswasinappropriate.Theresultsofthecooperativetestprogramareavailable(see Section
16).
1.2 ThistestmethodisamodificationofTestMethodD943wheretheoxidationstabilityofthesamekindsofoilsisdetermined
by following the acid number of oil. The number of test hours required for the oil to reach an acid number of 2.0 mg KOH/g is
the oxidation lifetime.
1.3 Procedure A of this test method requires the determination and report of the weight of the sludge and the total amount of
copper in the oil, water, and sludge phases. Procedure B requires the sludge determination only. The acid number determination
is optional for both procedures.
1.4
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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. For specific warning statements, see Section 7 and X1.1.5.
2. Referenced Documents
2
2.1 ASTM Standards:
A510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
B1 Specification for Hard-Drawn Copper Wire
D664 Test Method for Acid Number of Petroleum Products by Potentiometric Titration
D874 Test Method for Sulfated Ash from Lubricating Oils and Additives
D943 Test Method for Oxidation Characteristics of Inhibited Mineral Oils
D1193 Specification for Reagent Water
D3339 Test Method for Acid Number of Petroleum Products by Semi-Micro Color Indicator Titration
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
E1 Specification for ASTM Liquid-in-Glass Thermometers
3
2.2 IP Standard:Energy Institute Standard:
Specification for IP Standard Thermometers
4
2.3 British Standard:
BS 1829 Reference Tables for Iron v. Constantan Thermocouples
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.09.0C
on Oxidation of Turbine Oils.
Current edition approved Dec.Oct. 1, 2006.2009. Published January 2007.November 2009. Originally approved in 1983. Last previous edition approved in 2006 as
D4310–06ab. DOI: 10.1520/D4310-06B.10.1520/D4310-09.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
3
Available from Energy Institute, 61 New Cavendish St., London WIM, 8AR, England.
4
Available from British Standards Institute (BSI), 389 Chiswick High Rd., London W4 4AL, U.K.
*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 ----------------------
D4310–09
3. Terminology
3.1 Definitions:
3.1.1 sludge—a precipitate or sediment from oxidized mineral oil and water.
4. Summary of Test Method
4.1 An oil sample is contacted with oxygen in the presence of water and an iron-copper catalyst at 95°C for 1000 h.The weight
of insoluble material is determined gravimetrically by filtration of the oxidation tub
...
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