This standard covers gray-iron, ductile-iron, and cast-steel flanged-end, low-leakage, shaft- or trunnion-mounted, full-port, and double- and single-seated ball valves for pressures up to 150 psi (1,050 kPa) in sizes 6 in. through 60 in. (150 mm through 1,500 mm) diameter and pressures up to 300 psi (2,100 kPa) in sizes from 6 in. through 48 in. (150 mm through 1,200 mm) diameter for use in water, wastewater, and reclaimed water systems having water with a pH greater than 6 and less than 12 and with temperatures greater than 32°F (0°C) and less than 125°F (52°C). The major changes made in this revision of the standard are too numerous to list here and can be found in the foreword section of the standard.