This Standard sets out requirements for DN 6 to DN 100 one-piece and two-piecemetal-bodied in-line ball valves for use in plumbing water supply systems, which includes, but is not limited to, 2 way and 3 way valves.The valves are designed for non-buried installations operating at temperatures up to 65°C or greater, as specified by the manufacturer.NOTES:1 Purchasing guidelines are given in Appendix B.2The requirements for end of line 'ball' taps are set out in AS/NZS 3718.3 The requirements for valves for connection of property services are set out in AS 4796.