This document is an international standard for sound systems for emergency purposes, covering scope, objectives, reference specifications, and definitions.
This IEC standard specifies the technical requirements, performance criteria, and testing methods for sound systems used in emergency situations. It covers system operation, signal characteristics, and environmental conditions to ensure reliable audible warnings.
The document includes definitions, general system requirements, and detailed annexes describing attention signal levels, measurement procedures, and evaluation criteria. It references related IEC standards and provides normative and informative guidance for designers and installers.