Describes instruments for the measurement of frequency weighted and time averaged sound pressure levels. Includes object and general requirements, definitions, general characteristics, frequency weighting and amplifier characteristics, averaging and indicator characteristics, overload indication, sensitivity to various environments, calibration and verification of the basic characteristics, provision for use with auxiliary equipment and rating information and instruction manual.

Supersedes UNE 20493. 96 version with its amendment is still active. (09/2003)

UNE 20493:1993

UNE EN 61672-1:2005

UNE EN 61672-2:2005

SS EN 60804 Ed. 2 (2001) - Identical

I.S. EN 60804:2000 - Identical

IEC 60804 Ed. 2.0 - Identical

NBN EN 60804:2001 - Identical

BS EN 60804:2001 - Identical

DIN EN 60804 (2002-01) - Identical

SN EN 60804:2000 - Identical

NF EN 60804:2001 - Identical