G - Physics – 01 – N
Patent
G - Physics
01
N
150/18, 324/26
G01N 33/28 (2006.01) G01N 27/00 (2006.01) G01N 27/06 (2006.01)
Patent
CA 1163679
Method of Testing Oil for Ionic Contaminants - Abstract A method of testing oil for ionic contaminants is disclosed. The method comprises isolating a sample of the oil to be tested and mixing it with an equal weight of distilled water to dissolve ionic contaminants in the oil sample into the distilled water. Then, the contaminated water is separated from the mixture and its conductivity is determined. An alternative to separating the contaminated water is to use a surfactant to form an oil in water emulsion with the oil sample and the distilled water. The conductivity of the emulsion is determined directly. The magnitude of the conductivity directly indicates the amount of ionic contaminants present in the oil being tested. This method is especially suitable for determining the level of ionic contamination in the refrigerant of a refrigeration system of the type having a compressor drive which is lubricated with oil and wherein there is contact between the refrigerant and the oil. Ionic contaminants in the refrigerant of a refrigeration system are direct indicators of the presence of excessive amounts of water and/or certain undesirable metals in the refrigerant since these substances cause the formation of ionic contaminants in the refrigerant.
397367
Carrier Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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