ISO 8068:1987

Specifies required characteristics of mineral oils as delivered that are primarily intended for use as lubricants and control fluids for steam turbine systems requiring oils of category TSA and that may be used for gas turbines using oils of category TGA and for water turbines. These oils are not intended for service when extreme pressure properties are required. Two types of oil are defined: type AR with air-release requirements, and type B with no air-release requirements.