Specifies requirements for, and methods of acceptance testing of, manually operated metal valves for above-ground installation, in nominal sizes up to DN 150, for use as service valves rated for pressure up to 4 bar and as stopvalves rated for pressures up to 1 bar in gas supply systems which operate on gases conforming to DVGW-Arbeitsblatt (DVGW Instruction sheet) G 260 Part 1.