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
