1. Scope

1.1 This test method covers the evaluation of oxidation stability of inhibited steam-turbine oils in the presence of oxygen, water, and copper and iron metals at an elevated temperature. The test method is also used for testing other oils such as hydraulic oils and circulating oils having a specific gravity less than that of water and containing rust and oxidation inhibitors.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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. For specific warning statements, see Section 6.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel

B1 Specification for Hard-Drawn Copper Wire

D664 Test Method for Acid Number of Petroleum Products by Potentiometric Titration

D1193 Specification for Reagent Water

D3244 Practice for Utilization of Test Data to Determine Conformance with Specifications

D3339 Test Method for Acid Number of Petroleum Products by Semi-Micro Color Indicator Titration

D4057 Practice for Manual Sampling of Petroleum and Petroleum Products

D4310 Test Method for Determination of Sludging and Corrosion Tendencies of Inhibited Mineral Oils

D5770 Test Method for Semiquantitative Micro Determination of Acid Number of Lubricating Oils During Oxidation Testing

E1 Specification for ASTM Liquid-in-Glass Thermometers

Energy Institute Standards

British Standard

Keywords

acid number; circulating oils; corrosion; hydraulic oils; inhibited steam-turbine oils; iron-coffer catalyst; metal catalyst; oxidation; oxidation lifetime; oxidation stability; test life; turbine oils; Gas turbine fuel oils; Mineral oils; Oxidative stability ;

ICS Code

ICS Number Code 75.080 (Petroleum products in general)

DOI: 10.1520/D0943-04

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