Die Annotation des Normtextes SAE AS23899A :
This specification covers the design and performance requirements for one type of sound aural protector.
SUBJECT TAXONOMY: Interiors, Cabins, and Cockpits, Aircraft operations, Ground support, Fleet management, Maintainability and supportability, Noise, Safety
SUBFILE: Aerospace
TYPE OF DOCUMENT: Aerospace Standard
Stabilized: Jan 2012 