Consists of a double walled Hot Air Oven of specified inside dimensions and fitted with hinged door containing a double glass window. Heating of oven is maintained within the specified limits either with sensitive thermostat or Dual Display Microprocessor Based Digital Temperature Controller cum Indicator. A perforated self (Round) rotates inside the oven horizontally at a speed of 5 to 6 RPM and carries Aluminium sample containers. Inner Chamber size is 400 x 400 x 400 mm.