The Manufacturer of aeration devices reports the oxygen transfer rate of the device obtained through laboratory tests carried under standard conditions. Such standard condition are :
(a) Wastewater at zero DO, 25°C and 760 mm Hg
(b) Tapwater at zero DO, 0°C and 700 mm Hg
(c) Tapwater at zero DO, 20°C and 760 mm Hg
(d) Wastewater at zero DO, 0°C and 700 mm Hg
(a) Wastewater at zero DO, 25°C and 760 mm Hg
(b) Tapwater at zero DO, 0°C and 700 mm Hg
(c) Tapwater at zero DO, 20°C and 760 mm Hg
(d) Wastewater at zero DO, 0°C and 700 mm Hg