scope:

This SAE Recommended Practice presents service brake performance requirements for brakes systems of all combinations of new passenger cars and new trailers (braked or unbraked) intended for roadway use (excluding special-purpose vehicles such as ambulances, hearses, etc.). Acceptable performance requirements are based on data obtained from SAE J134.

Purpose-The purpose of this document is to establish the minimum service brake system performance requirements with regard to:

STOPPING ABILITY

Of cold brakes as affected by vehicle speed.

Of hot brakes as affected by vehicle speed and duty cycles.

Of cold brakes during emergency or inoperative power assist conditions.

PEDAL FORCE-Maximum and/or minimum force allowable.

BRAKE STABILITY

BRAKE SYSTEM INTEGRITY