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Full Description

This procedure is applicable to high frequency squeal type noise occurrences for passenger car and light truck type vehicles that are used under conventional operating conditions. The procedure does not encompass the consequences associate with changes in environment relate to temperature and humidity variations. Purpose This recommended test practice is intended to establish a common universally recognized method for performing a series of screening test sequences that identify the propensity of a brake assembly to generate squeal noise under a variety of test conditions.
 

Document History

  1. SAE J2521_202210


    Inertia Dynamometer Brake Squeal Noise Test Procedure for Vehicles without Regenerative Systems

    • Most Recent
  2. SAE J2521_201304


    Disc and Drum Brake Dynamometer Squeal Noise Test Procedure

    • Historical Version
  3. SAE J2521_201304


    Disc and Drum Brake Dynamometer Squeal Noise Test Procedure

    • Historical Version
  4. SAE J 2521


    Disc and Drum Brake Dynamometer Squeal Noise Matrix

    • Historical Version
  5. SAE J2521_200601

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    Disc and Drum Brake Dynamometer Squeal Noise Matrix

    • Historical Version