SAE J291-1980 DETERMINATION OF BRAKE FLUID TEMPERATURE

Foreword-This Reafirmed Document has been changed only to reflect the new SAE Technical Standards Board Format.

1. Scope-This code provides a test procedure for obtaining and determining extremely high brake fluid temperature encountered in the brake system of a vehicle that is equipped with disc brakes. Vehicles in normal operation may or may not produce brake fluid temperatures that are obtained in this procedure.
1.1 Purpose-To establish a uniform procedure for obtaining and determining a maximum temperature of brake fluid in the automotive braking system of vehicles equipped with disc brakes. This procedure is a uniform means of heating the brakes and the brake fluid and is not a simulation of any other test procedure.

2. References-There are no referenced publications specified herein.

3. Equipment
3.1 Thermocouples
3.2 Line pressure gages,0-300 psi(0-2.07 MPa) range
3.3 Temperature instrumentation,650 F(616 K) capability
3.4Stopwatch
3.5 Calibrated speedometer and odometer
3.6 Ambient temperature thermometer

4. Procedure1
4.1Preliminary Preparations

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