ANSI Standard S1.43 - Abstract
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Describes instruments for the measurement of frequency-weighted and time-average sound pressure levels. Optionally, sound exposure levels may be measured. Is consistent with the relevant requirements of American National Standard for
Specification for Sound Level Meters, ANSI S1.4-1983, but specifies additional characteristics that are necessary to measure the time average sound pressure
level of steady, intermittent, fluctuating and implusive sounds.
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