This package provides predefined types, such as Angle_deg (angle in degree), AngularVelocity_rpm (angular velocity in revolutions per minute) or Temperature_degF (temperature in degree Fahrenheit), which are in common use but are not part of the international standard on units according to ISO 31-1992 "General principles concerning quantities, units and symbols" and ISO 1000-1992 "SI units and recommendations for the use of their multiples and of certain other units".
If possible, the types in this package should not be used. Use instead types of package Modelica.SIunits. For more information on units, see also the book of Francois Cardarelli Scientific Unit Conversion - A Practical Guide to Metrication (Springer 1997).
Some units, such as Temperature_degC/Temp_C are both defined in Modelica.SIunits and in Modelica.Conversions.NonSIunits. The reason is that these definitions have been placed erroneously in Modelica.SIunits although they are not SIunits. For backward compatibility, these type definitions are still kept in Modelica.SIunits.
type Temperature_degF = Real (final quantity="ThermodynamicTemperature", final unit="degF");
type Temperature_degRk = Real (final quantity="ThermodynamicTemperature", final unit="degRk");
type Angle_deg = Real (final quantity="Angle", final unit="deg");
type AngularVelocity_rpm = Real (final quantity="AngularVelocity", final unit= "rev/min");
type Velocity_kmh = Real (final quantity="Velocity", final unit="km/h");
type Time_day = Real (final quantity="Time", final unit="d");
type Time_hour = Real (final quantity="Time", final unit="h");
type Time_minute = Real (final quantity="Time", final unit="min");
type Volume_litre = Real (final quantity="Volume", final unit="l");
type Energy_kWh = Real (final quantity="Energy", final unit="kWh");
type Pressure_bar = Real (final quantity="Pressure", final unit="bar");
type MassFlowRate_gps = Real (final quantity="MassFlowRate", final unit="g/s");