This SAE Recommended Practice establishes performance guidelines for the capacity of the air reservoir systems used on trucks, towing trucks, truck-tractors, trailers, and converter dollies with GVWRs over 10 000 lb, designed to be used on the highway. NOTE: Compliance with this document does not guarantee compliance with the air reservoir requirements of FMVSS 121. The purpose of this document is to establish a minimum air storage capacity for highway-type trucks, buses, trailers, and converted dollies which use compressed air to actuate or transmit actuation power to the foundation brakes. A vehicle's air reservoir capacity is quantified by its ability to provide a brake application pressure which is adequate to stop the vehicle within the emergency brake stopping distances specified in Table II of FMVSS 121, after seven full brake applications with the air compressor disabled.
SAE J1609-2010 Referenced Document
SAE J1911-2009 Test Procedure for Air Reservoir Capacity - Truck and Bus
SAE J1609-2010 history
2022SAE J1609-2022 Air Reservoir Capacity Performance Guide - Trucks and Buses
2020SAE J1609-2020 Air Reservoir Capacity Performance Guide - Commercial Vehicles
2014SAE J1609-2014 Air Reservoir Capacity Performance Guide—Trucks and Buses
2010SAE J1609-2010 Air Reservoir Capacity Performance Guide Trucks and Buses
2002SAE J1609-2002 Air Reservoir Capacity Performance Guide—Commercial Vehicles
1997SAE J1609-1997 Air Reservoir Capacity Performance Guide - Commercial Vehicles