This International Standard specifies a method for the measurement, under non-equilibrium conditions, of the inter-facial tension of mineral oils against water, which has been shown by practice to give a reliable indication of the presence
of hydrophilic compounds.
SIS SS-ISO 6295:1987 history
1987SIS SS-ISO 6295:1987 Petroleum products - Mineral oils - Determination of interfacial tension of oil against water - Ring method