ANSI/ASA S12.23-1989 (R2011)
Vendor Note: This Standard describes a method for expressing the noise emission of machinery and equipment in a convenient manner. ThisStandard applies to all machinery and equipment that is essentially stationary in nature and for which overall A- weighted soundpower is a meaningful descriptor of noise emission. This Standard is intended to facilitate preparation of equipmentspecifications, labels, or other documentation that expresses in quantitative terms the noise emission of machinery or equipment.