Fuel and Lubricant Testing


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ASTM D2070 - Thermal Stability of Hydraulic Oils


We perform thermal stability testing on hydraulic oils by ASTM D2070, which is required by most hydraulic fluid specifications. This test method is designed to evaluate the thermal stability of hydraulic oils in the presence of steel and copper catalysts.  The test is conducted at 135c for 168 hours, so the results are typically more severe than ASTM D130 (copper strip corrosion) and ASTM D665 (steel corrosion).  This test is required by most hydraulic fluid specifications.

We also perform thermal stability testing by ASTM D6468ASTM E487ASTM E537FTM 3411FTM 3458FTM 3459IP 467MIL-H-22072 §4.6.3MIL-PRF-3150 §4.5.4MIL-PRF-32033 § § §, and MIL-PRF-87252 §4.5.5. These different test methods use different instruments or procedures or are used for certain sample types. Click on the test method number to learn more about each test.

For additional information on this test method or to purchase a copy of the method, please click HERE to open a new window and visit the ASTM website.