IEC 61672-1:2002 Withdrawn

Electroacoustics - Sound level meters - Part 1: Specifications


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Gives electroacoustical performance specifications for three kinds of sound measuring instruments: - a conventional sound level meter that measures exponential time-weighted sound level; - an integrating-averaging sound level meter that measures time-average sound level; and - an integrating sound level meter that measures sound exposure level. A single instrument may make any, or all, of the three kinds of measurements. Two performance categories, class 1 and class 2, are specified in this standard. In general, specifications for class 1 and class 2 sound level meters have the same design goals and differ mainly in the tolerance limits and the range of operational temperatures. Tolerance limits for class 2 specifications are greater than, or equal to, those for class 1 specifications. Sound level meters conforming to the requirements of this standard have a specified frequency response for sound incident on the microphone from one principal direction in an acoustic free field or from random directions.

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Additional information

Publication typeInternational Standard
Publication date2002-05-29
Available language(s)English, English/French, French, Spanish
TC/SCTC 29 - Electroacousticsrss
ICS17.140.50 - Electroacoustics
File size933 KB

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