rating

The nominal value of any electrical, thermal, mechanical, or environmental quantity assigned to define the operating conditions under which a component, machine, apparatus, electronic device, etc., is expected to give satisfactory service. (Ref. IEC 747‑1.)

NOTE "Rating" is a generic term, but also see "maximum rating".

References: 

JESD77-B, 2/00
JESD99B, 5/07