New ANSI/AMCA standard establishes a method of determining the octave band sound power levels of a fan
AMCA International announced that the Board of Standards Review of the American National Standards Institute (ANSI) approved the following document: ANSI/AMCA STANDARD 300-08, “Reverberant Room Method for Sound Testing of Fans,” which standard establishes a method of determining the octave band sound power levels of a fan.
The method is reproducible when all requirements of the method are met. This standard applies to fans of all types and sizes. It is limited to the determination of airborne sound emission for the specified setups. Vibration is not measured, nor is the sensitivity of airborne sound emission to vibration effects determined. The test setup requirements in this standard establish the laboratory conditions necessary for a successful test. Rarely will it be possible to meet these requirements in a field situation. This standard is not intended for field measurements.
This edition revises the duct end reflection corrections a small amount. The revised corrections now reflect documented sources. Also, the physical requirements for the reverberant room were revised to harmonize them with international standards. Several other minor changes were made to make the standard more understandable.
AMCA International is accredited by ANSI as a standards developer using the “canvass” method. The canvass method provides and promotes a process that verifies the principles of openness have been followed in the approval procedure. It also ensures that a consensus of those individuals who are directly and materially affected by the standard(s) has been achieved.