Requirements for hydrants with valves of the wedge gate type and the screw-down type suitable for a maximum working pressure of 16 bar gauge. Also specifies requirements for their surface box frames and covers.
BS 750:1984 history
1970BS 750:2023 Tracked Changes. Underground fire hydrants. Surface box frames and covers. Specification
2012BS 750:2012 Specification for underground fire hydrants and surface box frames and covers
2006BS 750:2006 Specification for underground fire hydrants and surface box frames and covers