Instantaneous sound power per unit area

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3-1-095

Instantaneous sound energy flux per unit area

The quotient of the instantaneous sound power transmitted across a surface element and the area of the surface element.


Reference: I.E.C. (modified)




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

charge current

Intensity

Illuminance

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Contrast

Celsius (previously Centigrade)

Capacitance

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM