Defines the mechanical and endurance characteristics and tests for 1/2 and 3/4 nominal size draw-off taps. Relates to the following types of tap: pillar and bib taps, combination tap assemblies, single hole combination tap assemblies, three hole combination tap assemblies. Includes sections on requirements for compliance with BS 5412 and BS 5413, nominal size, marking, identification of taps, mechanical tests, endurance tests, body bending test, shut-off mechanisms endurance test method and swivel outlet endurance test method.