ASHRAE Standard 55-2004 is a design criteria for thermal conditions!

Product Details :

This standard specifies the combinations of indoor space environment and personal factors that will produce thermal environmental conditions acceptable to 80% or more of the occupants within a space. The environmental factors addressed are temperature, thermal radiation, humidity, and air speed; the personal factors are those of activity and clothing.

Supersedes ANSI/ASHRAE Standard 55-1992