1.1 This method gives a measure of the ability of the oil to separate from an emulsion. It is commonly applied to turbine oils, but it may be used for other lubricating oils. The test is commonly applied to used turbine oils but since it is sensitive to ageing and contamination of the oil, precision will be lower than that stated.
1.1.1 Oils containing inhibitors may give much higher results than the corresponding uninhibited oils and the precision may be less satisfactory.
IS 1448 Pt.95-1980 history
1980IS 1448 Pt.95-1980 Test methods for petroleum and its products [P: 95] Determination of demulsification number of lubricating oils