ASA/ANSI S12.23-1989 (R2025)

Method for the Designation of Sound Power Emitted by Machinery and Equipment

This standard describes methods for determining and verifying labeled values for the noise emitted by machinery and equipment. Two types of labeling are considered in this standard: machines labeled with individual values and machines labeled with the same value for the batch. For economical reasons, the labeled value for all machines of a batch of machines may be checked by sampling procedures. This standard does not deal with the consequences to be drawn if the labeled value is not verified for the batch of machines or for the single machine. Purpose: The principal purposes of this standard are to prescribe methods for verifying labeled noise emission values and to provide information to the labeler on the determination of noise emission values for product noise labeling purposes.