Under its own gravity, the oil flows through the ferrographic substrate at aconstant speed directly through the thistle glass conduit. All theferromagnetic particles in the oil sample were deposited on the ferrographicsubstrate under the action of magnetic field, and were analyzed after thoroughwashing and drying. It can effectively avoid the halo produced by the spectrumplate prepared by the ordinary iron spectrometer during the microscopeobservation.
Standard configuration