Verkkokauppa
SFS-EN 61672-1 Kumottu
Electroacoustics - Sound level meters - Part 1: Specifications
Soveltamisala
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.
Tuoteryhmä(t)
Sidokset
Velvoittavat viittaukset
Tekninen komitea
Vahvistuspäivä
02.06.2003
Kumouspäivä
17.02.2014
Vahvistustapa
ID11
Painos
2003
Sivumäärä
1
Julkaisun kieli
englanti