Sl No IS No Title VALVES 13. 780:1984 Sluice valves for water works purposes (50to 300 mm size) (sixth revision) 14. 2906:1984 Sluice valves for water works purposes (350 to 1200 mm size ) (third revision) 15. 2685:1971 Code of practice for selection, installation and maintenance of sluice valves (first revision) 16. 3042:1965 single faced sluice gates (200 to 1200 mm size) 17. 3950:1979 Surface boxes for sluice valves (first revision) 18. 778:1984 Copper alloy gate, globe and check valves for water works purposes (fourth revision) 19. 1701:1960 Mixing valves for ablutionary and domestic purposes. 20. 1703:1977 Ball valves (horizontal plunger type) including floats for water supply purposes (second revision) 21. 4838:1986 Foot valves for water works purposes (second revision) 22. 5312 Swing check type reflux (non return) valves for water works purposes   5312(Part1)1984 Single door pattern (first revision)   5312(Part2)1986 Multi door pattern 23. 9338:1984 Cast iron screw down stop valves and stop and check valves for water works purposes (first revision) 24. 9739:1981 Pressure reducing valves for domestic water supply systems 25. 12234:1988 Equilibrium plastic float valve for cold water services.