This standard BS EN 60500:2017 Underwater acoustics. Hydrophones. Properties of hydrophones in the frequency range 1 Hz to 500 kHz is classified in these ICS categories:
17.140.50 Electroacoustics
This document specifies the relevant characteristics and properties of hydrophones in the frequency range 1 Hz to 500 kHz, and specifies how to report these characteristics. It does not cover performance requirements for specific hydrophone types, or for specific hydrophone applications. However, guidance on the choice of a hydrophone with appropriate performance for a specific application is given in an informative annex.
This document is applicable to:
hydrophones employing piezoelectric sensor elements, designed to respond to sound pressure in water and measure underwater acoustical signals;
hydrophones with or without an integral pre-amplifier.