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REXS Specification

Rules for assigning units

The associated units are determined for each numerical attribute, if applicable. Specification in different units is not allowed. Units should be assigned according to SI units. If other units have gained acceptance in engineering practice, they will be accepted; e.g., "revolutions per minute."

The list of possible units can be viewed in the REXS database.

Notice

Change from REXS version 1.3

The unit symbol for degrees is now "deg" instead of "°"

Convention

  • Absolute temperatures must always be specified in °C

  • Temperature differences must always be specified in K

Rules for assigning the Unit ID:

  • A maximum of one SI prefix is added before the unit. Example: mm

  • Use a space to identify multiplication of units. Example: N m = N ∙ m

  • Powers are represented by ^. Example: m^2 = m2

  • Fractions are represented by /. Use parentheses to indicate multiplication in the denominator. Example: