ISO 4266:1994 PDF

Gives guidance on the selection, specification, installation, operation and maintenance of mechanical and servo-operated automatic tank gauging systems measuring level and temperature in petroleum storage tanks which are at or near atmospheric temperature and pressure, or used under pressure, or for the storage of heated liquid petroleum products. Does not apply to tank gauging systems using other sensing principles, such as radar and optical methods. Does not apply to level and temperature measurement systems for refrigerated hydrocarbon liquids.