scope:

This International Standard specifies a) the typical application for a permanently installed sound monitor around an airport; b) performance specifications for instruments, requirements for installing and operating unattended instruments so as to determine continuously monitored sound pressure levels of aircraft sound at selected locations; c) requirements for monitoring the sound of aircraft operations from an airport; d) requirements for the quantities to be determined to describe the sound of aircraft operations; e) requirements for data to be reported and how often the reports should be published; f) a procedure to determine the expanded uncertainty of the reported data in accordance with the Guide to the expression of uncertainty in measurements; This International Standard does not provide 1) a method for confirming or validating predicted sound contours; 2) a method for determining, validating or confirming aircraft noise certification data. 3) methods for describing the sound generated by ground movement except on the runway after start of roll for take-offs, and between touchdown and exiting from the runway for landings, or the use of auxiliary power units.