This apparatus is made as per IP 34, ASTMD-93-58 T and IS 1448 (Part 1) 1270 (P.21) and 1203-1953 method B. The apparatus consists of brass test cup with handely removable cup cover with spring operated rotating Shutter having piolet jet, stirrer with flexible shaft. The Assembly rests in Air Bath which is covered with Dome shape metal top. The cup is fitted with insulated Handle and locking arrangement near Cup flange. The assemble is kept on round shape electric heater with temp. regulator. Suitable for operation on 220 Volts 50 cycles AC Circuits.