Water Content
Machinery malfunction can be avoided by rapid detection of water contamination.
This test determines the percentage of water in the oil, due to condensation, leaks, or inefficient operation of the separator.
Sea Water Detection
An additional test, "SEA WATER DETECTION", enables the nature of the water (sea water or fresh water) to be identified.
Viscosity
This determination is based on the comparative measurement of viscosities between new oil and the oil in service.
The result provides information on the level of fuel dilution, build-up of carbon contaminants and oxidation of the oil.
Insoluble Matter
This test indicates the content of combustion residues, which reveals the conditions of operation of the engine and the efficiency of separators and filters.
The observation of the spot on the dedicated test equipment gives information on the dispersant and detergent capacity of the oil.
BN
BN (Base Number, formerly known as TBN) indicates the alkalinity reserve of the oil, which is the capacity of the oil to neutralize acids resulting from the combustion process. A lubricant should possess a sufficient alkalinity reserve to prevent any risk of corrosive wear. This test enables the BN to be determined by a pressure measurement technique. | 
