This test method covers the voltammetric determination of hindered phenol and aromatic amine antioxidants in new or in-service type non-zinc turbine oils. In a new turbine oil it measures the amount of these compounds that has been added to the oil as protection against oxidation. In in-service oil, it measures the amount of original antioxidants remaining after oxidation has reduced its initial concentration.
Water Separation - ASTM D1401 (代码: WAT)
This test method provides a guide for determining the water separation characteristics of oils subject to water contamination and turbulence. Although developed specifically for steam-turbine oils having viscosities of 28.8 mm2/s to 90 mm2/s at 40 °C, this test method may be used to test oils of other types having various viscosities and synthetic fluids at other test temperatures.