This is a reaffirmation of ASHRAE Standard 94.3-1986. This standard falls under the Standards Committee classification of Standard Method of Measurement. This standard was prepared under the auspices of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). It may be used, in whole or in part, by an association or government agency with due credit to ASHRAE. Adherence is strictly on a voluntary basis and merely in the interests of obtaining uniform standards throughout the industry.

Preparation of this standard was done by a group of volunteers representing users, design engineers, manufacturers, scientists, and the federal government. Work sponsored by the U.S. Department of Energy and the Electric Power Research Institute in the solar and off-peak energy programs at government laboratories and universities has been especially helpful. Particular thanks go to Roger Cole of Argonne National Laboratory for his definitive work in creating and preparing this revised standard. James Martin of Oak Ridge National Laboratory and Professor M.W. Wildin of the University of New Mexico made significant contributions.

Units: Dual