ASA/ANSI S12.9-2013/Part 1 (R2023) Quantities and Procedures for Description and Measurement of Environmental Sound, Part 1: Basic Quantities and Definitions
This standard provides basic quantities for description of sound in community environments and general procedures for measurement of these quantities. Based on these quantities and procedures, compliance limits of sound may be specified by cognizant authorities and conformance with the limits controlled for purposes of environmental assessment, regulation, and land use planning.