ASTM D943-99 - 10.6.1999
 
1. Scope

1.1 This test method was developed for, and is used to evaluate the 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 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

E1-14(2025)

Standard Specification for ASTM Liquid-in-Glass Thermometers

A510-08

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

D5770-23

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

D4310-22a

Standard Test Method for Determination of Sludging and Corrosion Tendencies of Inhibited Mineral Oils (Includes all amendments and changes 11/10/2022).

D4057-22

Standard Practice for Manual Sampling of Petroleum and Petroleum Products

BS 1829

D3244-24

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

D1193-24

Standard Specification for Reagent Water

D664-24

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

B1-13(2018)

Standard Specification for Hard-Drawn Copper Wire

Specifications for IP Standard Thermometers

D3339-21

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