ANSI S12.51:2012
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ACOUSTICS - DETERMINATION OF SOUND POWER LEVELS AND SOUND ENERGY LEVELS OF NOISE SOURCES USING SOUND PRESSURE - PRECISION METHODS FOR REVERBERATION TEST ROOMS
Hardcopy , PDF
09-05-2023
English
01-01-2017
1 Scope
2 Normative references
3 Terms and definitions
4 Reference meteorological conditions
5 Reverberation test room
6 Instrumentation and measurement equipment
7 Definition, location, installation, and operation
of noise source under test
8 Measurements in the reverberation test room
9 Determination of sound power levels and sound
energy levels
10 Measurement uncertainty
11 Information to be recorded
12 Test report
Annex A (informative) - Guidelines for the design
of reverberation test rooms
Annex B (informative) - Guidelines for the design
of rotating diffusing vanes
Annex C (normative) - Reverberation test room
qualification procedure for the measurement
of broad-band sound
Annex D (normative) - Reverberation test room
qualification procedure for the measurement
of discrete-frequency components
Annex E (informative) - Extension of frequency
range to frequencies below 100 Hz
Annex F (normative) - Calculation of octave band
sound power levels and sound energy levels,
A-weighted sound power levels and
A-weighted sound energy levels from
one-third-octave band levels
Annex G (informative) - Guidelines on the
development of information on measurement
uncertainty
Bibliography
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