I.Brief Introduction:

• The instrument is apply to ASTM D721 Standard Test Method for Oil Content of Petroleum Waxes

• It is suitable to determine the oil content of petroleum wax, the congealing point of which is higher than 30 °C and the oil content of which is not more than 15%.

• The method is expressed as follows: Solve sample in the methyl ethyl ketone and cool it to -32 °C to separate wax out. Filter it and evaporate methyl ethyl ketone in the filtering liquid. Weigh the residue and calculate the oil content in the wax.

       Note: For some wax having oil content higher than 5%, if the oil could not be completed dissolved in the methyl ethyl ketone, please don't use this instrument.


II.Main technical data
1. Power supply: AC 220V±10%, 50 Hz
2. Controlling temperature of wax melting bath: room temperature~90 °C±5 °C
3. Controlling temperature of cooling bath: -35 °C±1 °C
4. Evaporation temperature: 35 °C±1 °C
5. Flowing rate of blowing air (Total flowing rate of 4 nozzles): 8~12 L/min
6. Timing range: 0~60 min