Geluidintensiteitsniveau : ISO
131-1979 Acoustics -- Expression of physical and subjective magnitudes of sound or noise
in air (Sound intensity level).
Geluidvermogenniveau : ISO 131-1979
Acoustics -- Expression of physical and subjective magnitudes of sound or noise in air
(Sound power level).
Berekenen van de directiviteit van een
geluidbron : ISO 3745-1977 Acoustics -- Determination of sound power levels
of noise sources -- Precision methods for anechoic and semi-anechoic rooms ; Annex E :
Calculation of directivity index and directivity factor.
Instrumentatie voor
geluidintensiteitsmetingen : IEC 61043 (1993-11) Electroacoustics -
Instruments for the measurement of sound intensity - Measurements with pairs of pressure
sensing microphones.