ARLINGTON HEIGHTS, Ill. - The Air Movement and Control Association International (AMCA International) announced that the Board of Standards Review of the American National Standards Institute (ANSI) has approved ANSI/AMCA 204-05, "Balance Quality and Vibration Levels for Fans," as an American National Standard.

This standard defines appropriate fan balance quality and operating vibration levels for those who specify, manufacture, use, and maintain fan equipment. Vibration is recognized to be an important parameter regarding the mechanical operation of fans. Balance quality is a precondition to satisfactory mechanical operation. This standard is said to be in harmony with the international standard, ISO 14694:2003, "Industrial fans - Specification for balance quality and vibration levels."

The AMCA standard is available as a download or printed copy at

Publication date: 10/31/2005