9SAE Recommended Practice. Report of the Brake Committee and the Automotive Safety Committee, approved August 1971, reaffirmed without change September 1980. SAE J263 SEP80 Emergency air brake systems-motor vehicles and vehicle combinations.
10SAE Recommended Practice. Report of the Brake Committee, approved February 1967, last revised June 1976, reaffirmed without change September 1980. SAE J982 SEP80 Test code-truck, truck-tractor, and trailer air service brake system pneumatic pressure and time levels.
