ASTM-D4742 › Historical Revision Information
Standard Test Method for Oxidation Stability of Gasoline Automotive Engine Oils by Thin-Film Oxygen Uptake (TFOUT)
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Scope
1.1 This test method evaluates the oxidation stability of engine oils for gasoline automotive engines. This test, run at 160°C, utilizes a high pressure reactor pressurized with oxygen along with a metal catalyst package, a fuel catalyst, and water in a partial simulation of the conditions to which an oil may be subjected in a gasoline combustion engine. This test method can be used for engine oils with viscosity in the range from 4 mm2/s (cSt) to 21 mm2/s (cSt) at 100°C, including re-refined oils.
1.2 This test method is not a substitute for the engine testing of an engine oil in established engine tests, such as Sequence IIID.
1.3 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.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.
Keywords
oxidation stability; oxygen uptake; sequence IIID engine simulation; TFOUT; ICS Number Code 75.100 (Lubricants, industrial oils and related products)
To find similar documents by ASTM Volume:
05.02 (Petroleum Products and Lubricants (II): D3711 - D6122)
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Document Number
ASTM-D4742-88
Revision Level
1988 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
Feb. 2, 1988
Document Type
Test Method
Page Count
7 pages
Committee Number
D02.09