Potentiometric titrator
ASTM D664 | K90385
Koehler Instrument
Test Method
For determination of acidic constituents in petroleum products, lubricants and transformer insulating oils soluble or nearly soluble in mixtures of toluene and propan-2-ol. It is applicable for the determination of acids whose dissociation constants in water are larger than 10-9. The test may be used to indicate relative changes that occur in oil during use under oxidizing conditions regardless of the color or other properties of the resulting oil.
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