General requirements, bodies and underframes, wheels and axles, suspension gear, coupler and buffer gear and ancillary requirements. Vehicle capacities, dimensions and designations; materials, design, construction and testing. Illustrations: typical mine car, underframe, ram, creeper and tippler engagement assembly, wheels, axle assembly, laminated springs, typical coupler units. Cross References:BS 4:Part 1BS 15BS 18BS 24:Part 3A BS 24:Part 3BBS 24:Part 6BS 275BS 350:Part 1BS 639BS 693BS 729BS 970 BS 1449BS 1452BS 1473BS 1476BS 1477BS 1663BS 1806BS 1856BS 2772:Part 2BS 2772:Part 3BS 2901:Part 1BS 2901:Part 2BS 2994BS 3019:Part 1BS 3032 BS 3100BS 3134BS 3237BS 3571:Part 1 BS 3673:Part 1