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IEC 60651

Sound Level Meters

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Organization: IEC
Publication Date: 1 October 2001
Status: inactive
Page Count: 86
ICS Code (Electroacoustics): 17.140.50
scope:

General

This standard describes instruments (sound level meters) for the measurement of certain frequency and time weighted sound pressure levels.

Types

This standard specifies sound level meters of four degrees of precision, designated Types 0, 1, 2 and 3. 1.3

Tolerances

The specifications for Types 0, 1, 2 and 3 sound level meters have the same centre values and differ only in the tolerances allowed, Tolerances generally broaden as the type number increases and differ for the various types to a degree which affects manufacturing costs significantly.

Characteristics specified

This standard specifies the following characteristics of sound level meters:

a) directional characteristics;

b) frequency weighting characteristics;

c) time weighting, detector and indicator characteristics;

d) sensitivity to various environments.

Tests specified

This standard specifies electrical and acoustical tests to verify compliance with the characteristics specified (see 1.4). It also describes the method for absolute sensitivity calibration.

Document History

IEC 60651
October 1, 2001
Sound Level Meters
General This standard describes instruments (sound level meters) for the measurement of certain frequency and time weighted sound pressure levels. Types This standard specifies sound level meters...
October 1, 2000
Amendment 2 Sound Level Meters
A description is not available for this item.
March 1, 1994
Sound Level Meters
A description is not available for this item.
September 1, 1993
Amendment 1 Sound Level Meters
A description is not available for this item.
January 1, 1979
Sound Level Meters
A description is not available for this item.

References

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