si::base_unit

Description

The SI base units are represented in PQS as a subset of normative units, ³ where each SI base unit is associated with a base quantity. The base unit ties the quantity to some physical measurement of the base quantity such that a numeric value expressed in the base unit can represent a defined measure of the quantity.

• [3] A base_unit is also a normative_unit and has a conversion factor of 1.