IEC 61672-1 Ed. 1.0被替代
Electroacoustics - Sound level meters Part 1: Specifications
出版：International Electrotechnical Committee
专家解读视频
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.
UNE EN 61672-1:2005 - Identical
SS EN 61672-1 Ed. 1 (2003) - Identical
PN EN 61672-1:2005 - Identical
AS IEC 61672.1-2004 - Identical
NEN EN IEC 61672-1:2003 - Identical
OVE/ONORM EN 61672-1:2005 - Identical
BIS IS 15575-1:2005 - Identical
I.S. EN 61672-1:2003 - Identical
NF EN 61672-1:2003 - Identical
CEI EN 61672-1 Ed. 1 (2003) - Identical
SN EN 61672-1:2003 - Identical
BS EN 61672-1:2003 - Identical
DIN EN 61672-1 (2003-10) - Identical
JIS C 1509-1:2005 - Identical
