Solid contaminants

  
OELCHECK test instrument: Millipore filter system, scale, desiccator
Sample quantity:20 ml
Unit: % (weight)
Test result: solid contaminants
Analysis for: hydraulic and gear oils experiencing specific problems, circulating oils
Brief description: The oil sample is diluted with solvent and drawn through a filter with a pore width of 0.8 µm. The difference in filter weight resulting from the "solid contaminants" is converted into % by weight.
Statement: The quantity of "solid contaminants" provides information on the overall pollution of the oil for investigation. The particles on the scaled filter paper can be investigated further using a microscope. Sometimes conclusions can subsequently be drawn on the origin of these residues.
Underlying test standard: OELCHECK test method OPM 080
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