The American Society of Agricultural and Biological Engineers (ASABE) has revised an existing standard on selecting energy-efficient ventilation fans for agricultural use.

Information in the new document, ASABE EP566.1, Guidelines for Selection of Energy Efficient Agricultural Ventilation Fans, will help lower production costs by increasing fan efficiency.

The data used to improve the effectiveness of the scope of this standard was obtained from the University of Illinois Bioenvironmental and Structural Systems Laboratory and other sources.

For a copy of the document, contact ASABE headquarters at A free electronic copy of the standard can also be obtained by ASABE members and those with site-license privileges to the ASABE online technical library at