B-1 This standard establishes the characteristics and test methods of non-metallic flexible pipes of 4.8 mm and 6.4 mm nominal internal diameter and connection, corresponding to the hydraulic brake system of motor vehicles.
IRAM 11 005-1962 history
1962IRAM 11 005-1962 Hydraulic brakes for diesel rail cars (variable pipe and connecting pipe diameters are 4.8mm and 6.4mm respectively)