ASTM D5846-07

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D5846 − 07
StandardTest Method for
Universal Oxidation Test for Hydraulic and Turbine Oils
1
Using the Universal Oxidation Test Apparatus
This standard is issued under the fixed designation D5846; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D664Test Method for Acid Number of Petroleum Products
by Potentiometric Titration
1.1 This test method covers a procedure for evaluating the
D943TestMethodforOxidationCharacteristicsofInhibited
oxidationstabilityofpetroleumbasehydraulicoilsandoilsfor
Mineral Oils
steam and gas turbines.
D974Test Method for Acid and Base Number by Color-
1.2 This test method was developed to evaluate the oxida-
Indicator Titration
tion stability of petroleum base hydraulic oils and oils for
D3339TestMethodforAcidNumberofPetroleumProducts
steam and gas turbines.
by Semi-Micro Color Indicator Titration
1.2.1 Rust and oxidation inhibited hydraulic, anti-wear hy-
D4057Practice for Manual Sampling of Petroleum and
draulic and turbine oils of ISO 32–68 viscosity were used to
Petroleum Products
develop the precision statement. This test method has been
D4740Test Method for Cleanliness and Compatibility of
used to evaluate the oxidation stability of fluids made with
Residual Fuels by Spot Test
synthetic basestock and in-service oils; however, these fluids
D4871Guide for Universal Oxidation/Thermal Stability
have not been used in cooperative testing to develop precision
Test Apparatus
data.
D5770Test Method for Semiquantitative Micro Determina-
tion of Acid Number of Lubricating Oils During Oxida-
1.3 The values stated in SI units are to be regarded as
standard. The values given in parentheses are for information tion Testing
3
only.
2.2 Energy Institute Standard:
1.4 This standard does not purport to address all of the IP 2546 Practice for Sampling of Petroleum Products;
alternate to Practice D4057
safety concerns, if any, associated with its use. It is the
4
responsibility of the user of this standard to establish appro-
2.3 British Standard:
priate safety and health practices and determine the applica-
BS 1829Specification for Carbon Steel Wire; alternate to
bility of regulatory limitations prior to use. Identified hazard-
Specification A510
ous chemicals are listed in 7.3, 7.6, and 7.8. Before using this
2.4 ASTM Adjuncts:
test method, refer to suppliers’ safety labels, Material Safety
5
Reference Spot Sheet
Data Sheets, and other technical literature.
3. Terminology
2. Referenced Documents
2 3.1 Definitions of Terms Specific to This Standard:
2.1 ASTM Standards:
3.1.1 inhibited mineral oil, n—a petroleum oil containing
A510SpecificationforGeneralRequirementsforWireRods
additives to retard oxidation.
and Coarse Round Wire, Carbon Steel
3.1.2 oxidation life, n—of an oil, the time in hours required
B1Specification for Hard-Drawn Copper Wire
for degradation of the oil under test.
3.1.3 universal oxidation test, n—the apparatus and proce-
1
dures described in Guide D4871.
This test method is under the jurisdiction of ASTM Committee D02 on
PetroleumProductsandLubricantsandisthedirectresponsibilityofSubcommittee
D02.09.0D on Oxidation of Lubricants.
Current edition approved Nov. 1, 2007. Published January 2008. Originally
3
approved in 1995. Last previous edition approved in 2002 as D5846–02. DOI: Available from Energy Institute, 61 New Cavendish St., London, WIG 7AR,
10.1520/D5846-07. U.K., http://www.energyinst.org.uk.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from British Standards Institute (BSI), 389 Chiswick High Rd.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM London W4 4AL, U.K., http://www.bsi-global.com.
5
Standards volume information, refer to the standard’s Document Summary page on Available from ASTM International Headquarters. Order Adjunct No.
the ASTM website. ADJD4740. Original adjunct produced in 2000.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5846 − 07
FIG. 1 Apparatus, Showing Gas Flow Control System, Temperature Control System, and Heating Block
4. Summary of Test Method oxidation stability in use can vary markedly with service
conditions and with various oils.
4.1 An oil sample is contacted with air at 135°C in the
presence of copper and iron metals. The acid number and spot
6. Apparatus
forming tendency of the oil are measured daily. The test is
6.1 Heating Block, as shown on the right in Fig. 1, and as
terminated when the oxidation life of the oil
...