ASTM D6514 - 03(2008)

    Standard Test Method for High Temperature Universal Oxidation Test for Turbine Oils

    Active Standard ASTM D6514 | Developed by Subcommittee: D02.09.0C

    Book of Standards Volume: 05.03


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    ASTM D6514

    Significance and Use

    Degradation of fluid lubricants because of oxidation or thermal breakdown can result in fluid thickening or in the formation of acids or insoluble solids and render the fluid unfit for further use as a lubricant.

    This test method can be used for estimating the oxidation stability of oils. It can function as a formulation screening tool, specification requirement, quality control measurement, or as a means of estimating remaining service life. It shall be recognized, however, that correlation between results of this test method and the oxidation stability of an oil in field service can vary markedly with field service conditions and with various oils.

    This test method is designed to compliment Test Method D 5846 and is intended for evaluation of fluids which do not degrade significantly within a reasonable period of time at 135°C.

    1. Scope

    1.1 This test method covers a procedure for evaluating the oxidation of inhibited lubricants in the presence of air, copper, and iron metals.

    1.2 This test method was developed and is used to evaluate the high temperature oxidation stability and deposit forming tendency of oils for steam and gas turbines. It has been used for testing other lubricants made with mineral oil and synthetic basestocks for compressors, hydraulic pumps, and other applications, but these have not been used in cooperative testing.

    1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.4 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. Identified hazardous chemicals are listed in Section 7. Before using this test method, refer to suppliers' safety labels, Material Safety Data Sheets and other technical literature.


    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

    D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

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

    D943 Test Method for Oxidation Characteristics of Inhibited Mineral Oils

    D974 Test Method for Acid and Base Number by Color-Indicator Titration

    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

    D4871 Guide for Universal Oxidation/Thermal Stability Test Apparatus

    D5846 Test Method for Universal Oxidation Test for Hydraulic and Turbine Oils Using the Universal Oxidation Test Apparatus

    British Standards

    BS1829 Specification for Carbon Steel, alternate to Specification

    Institute of Petroleum Standard

    IP2546 Practice for Sampling of Petroleum Products; Alternate to Practice


    UNSPSC Code

    UNSPSC Code 15121527(Turbine oil)


    DOI: 10.1520/D6514-03R08

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