ASTM D2070 Standard Test Method for Thermal Stability of Hydraulic Oils
1. Scope
1.1 This test method is designed primarily to evaluate the thermal stability of hydrocarbon based hydraulic oils although oxidation may occur during the test.

1.2 The values stated in SI units are to be regarded as the standard.

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.

2. Referenced Documents
2.1 ASTM Standards:
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products

2.2 Copper Development Association Standard UNS C11000 Electrolytic Tough Pitch Copper

2.3 American Iron and Steel Institute Standard (AISI) W-1 Carbon Tool Steel