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Standard Test Method for Bench Oxidation of Engine Oils by ROBO ApparatusTranslate name
STANDARD published on 1.4.2022
Designation standards: ASTM D7528-22
Publication date standards: 1.4.2022
The number of pages: 25
Approximate weight : 75 g (0.17 lbs)
Country: American technical standard
Category: Technical standards ASTM
evaporative loss, low-temperature pumpability, MRV viscosity, oil aging, oil oxidation, oil viscosity, ROBO test, sequence IIIG test, sequence IIIGA test, volatiles,, ICS Number Code 75.100 (Lubricants, industrial oils and related products)
|Significance and Use|
5.1This bench test method is intended to produce comparable oil aging characteristics to those obtained with ASTM TMC Sequence IIIGA matrix reference oils 434, 435, and 438 after aging in the Sequence IIIG engine test.
5.2To the extent that the method generates aged oils comparable to those from the Sequence IIIG engine test, the measured increases in kinematic and MRV viscosity indicate the tendency of an oil to thicken because of volatilization and oxidation, as in the Sequence IIIG and IIIGA (see Appendix X1 in Test Method ) engine tests, respectively.
5.3This bench test procedure has potential use in specifications and classifications of engine lubricating oils, such as Specification .
5.4The results of this test method are valid when seeking qualification of oils against published specifications only when run on a test stand that has successfully met the calibration requirements specified under the TMCs ROBO test monitoring program.
1.1This test method describes a bench procedure to simulate the oil aging encountered in Test Method , the Sequence IIIG engine test method. These aged oils are then tested for kinematic viscosity and for low-temperature pumpability properties as described in the Sequence IIIGA engine test, Appendix X1 of Test Method .
1.2UnitsThe values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.2.1ExceptionsThere are no SI equivalents for some apparatus in Section , and there are some figures where inch units are to be regarded as standard.
1.3This test method is arranged as follows:
1.4This 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. 1.5This 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.
|2. Referenced Documents|
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