1.1''This test method describes a bench procedure to simulate the oil aging encountered in Test Method D7320, 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 D7320.

1.2''Units'''The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.2.1''Exceptions'''There are no SI equivalents for some apparatus in Section 6, and there are some figures where inch units are to be regarded as standard.

1.3''This test method is arranged as follows:

''	Section
Scope	1
Reference Documents	2
Terminology	3
Summary of Test Method	4
Significance and Use	5
Apparatus	6
Reagents and Materials	7
Hazards	8
New and Existing Test Stand Calibration	9
Procedure	10
Cleaning	11
Calculations and Determination of Test Results	12
Report	13
Precision and Bias	14
Keywords	15
Annexes	''
ASTM Test Monitoring Center: Organization	Annex A1
ASTM Test Monitoring Center: Calibration Procedures	Annex A2
ASTM Test Monitoring Center: Maintenance Activities	Annex A3
ASTM Test Monitoring Center: Related Information	Annex A4
Reaction Vessel	Annex A5
Reaction Vessel Head	Annex A6
Reaction Vessel-to-Head Seal	Annex A7
Agitator Turbine Blade	Annex A8
Agitator Packing Gland	Annex A9
Nitrogen Dioxide Graduated Tube	Annex A10
Vacuum System Plumbing	Annex A11
Vacuum Trap Condensers	Annex A12
Setting the Vacuum Control Valve	Annex A13
Appendixes	''
Sample Preparation and Addition	Appendix X1
Charging the Liquid Nitrogen Dioxide	Appendix X2
Nitrogen Dioxide Precision Needle Valve	Appendix X3
Example of an Assembled ROBO Apparatus	Appendix X4
Information Package to Aid Setting Up a New Robo Apparatus	Appendix X5

1.4''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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given in Sections 7 and 8.

1.5''This 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.