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.