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    ASTM D7450 - 13

    Standard Specification for Performance of Rear Axle Gear Lubricants Intended for API Category GL-5 Service

    Active Standard ASTM D7450 | Developed by Subcommittee: D02.B0

    Book of Standards Volume: 05.04

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    1. Scope

    1.1 This specification covers test methods and acceptance criteria for determining the acceptability of gear oils for applications that specify a lubricant meeting the performance requirements of API Category GL-5 service. Lubricants that meet these performance requirements are typically intended for use in automotive axles, particularly those containing hypoid gears, operating under various combinations of high-speed/shock-load and low-speed/high-torque conditions.

    1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    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.


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

    SAE Documents

    J306 Automotive Gear Lubricant Viscosity Classification

    J2360 Lubricating Oil, Gear Multipurpose (Metric) Military Use

    ASTM Standards

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

    D892 Test Method for Foaming Characteristics of Lubricating Oils

    D5704 Test Method for Evaluation of the Thermal and Oxidative Stability of Lubricating Oils Used for Manual Transmissions and Final Drive Axles

    D6121 Test Method for Evaluation of Load-Carrying Capacity of Lubricants Under Conditions of Low Speed and High Torque Used for Final Hypoid Drive Axles

    D7038 Test Method for Evaluation of Moisture Corrosion Resistance of Automotive Gear Lubricants

    D7452 Test Method for Evaluation of the Load Carrying Properties of Lubricants Used for Final Drive Axles, Under Conditions of High Speed and Shock Loading

    Military Standards

    MIL-L-2105C Lubricating Oil, Gear, Multipurpose

    MIL-L-2105D Lubricating Oil, Gear, Multipurpose

    MIL-PRF-2105E Lubricating Oil, Gear, Multipurpose

    ICS Code

    ICS Number Code 75.100 (Lubricants, industrial oils and related products)

    UNSPSC Code

    UNSPSC Code 15121503(Gear oil)

    Referencing This Standard
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    DOI: 10.1520/D7450-13

    Citation Format

    ASTM D7450-13, Standard Specification for Performance of Rear Axle Gear Lubricants Intended for API Category GL-5 Service, ASTM International, West Conshohocken, PA, 2013, www.astm.org

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