IEC 61672-1:2002 Electroacoustics - Sound level meters - Part 1: Specifications
- Abbreviation
- IEC 61672-1:2002
- Valid from
- 29/05/2002
- Information provider
- International Electrotechnical Commission,
- Author
- International Electrotechnical Commission
- Information type
- IEC Standard,
- Format
- PDF, HARD COPY,
Description
This Standard 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.
This resource is cited by:
IEC 61672-1:2002 Electroacoustics - Sound level meters - Part 1: Specifications
This document is CITED BY:
-
ISO 12239: 2003
IEC 61672-1:2002 is cited by ISO 12239: 2003 Fire detection and fire alarm systems - smoke alarms