temperature, operative (to ): the uniform temperature of an
imaginary black enclosure and the air within it in which an
occupant would exchange the same amount of heat by radiation
plus convection as in the actual nonuniform environment;
calculated in accordance with Normative Appendix A
of this standard. Note: See Chapter 9 of ASHRAE Handbook—
Fundamentals3 for further discussion of operative
temperature.)
temperature, plane