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    ASTM D2619 - 21

    Standard Test Method for Hydrolytic Stability of Hydraulic Fluids (Beverage Bottle Method)

    Active Standard ASTM D2619 | Developed by Subcommittee: D02.N0

    Book of Standards Volume: 05.01

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    Significance and Use

    4.1 This test method differentiates the relative stability of hydraulic fluids in the presence of water under the conditions of the test. Hydrolytically unstable hydraulic fluids form acidic and insoluble contaminants which can cause hydraulic system malfunctions due to corrosion, valve sticking, or change in viscosity of the fluid. The degree of correlation between this test method and service performance has not been fully determined.

    1. Scope

    1.1 This test method2 covers the determination of the hydrolytic stability of petroleum or synthetic-based hydraulic fluids.

    Note 1: Water-based or water-emulsion fluids can be evaluated by this test method, but they are run “as is.” Additional water is not added to the 100 g sample. In these cases, the person requesting the test needs to let the test operator know that water is present.

    1.2 The values stated in SI units are to be regarded as the standard. The English units given in parentheses are provided 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given in 3.1, 6.1, 6.3, 6.9 and Annex A1.

    1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    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

    D130 Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test

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

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

    ICS Code

    ICS Number Code 75.120 (Hydraulic fluids)

    UNSPSC Code

    UNSPSC Code 15121504(Hydraulic oil)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D2619-21

    Citation Format

    ASTM D2619-21, Standard Test Method for Hydrolytic Stability of Hydraulic Fluids (Beverage Bottle Method), ASTM International, West Conshohocken, PA, 2021, www.astm.org

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