BS EN ISO 3744:2010
Current
The latest, up-to-date edition.
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering methods for an essentially free field over a reflecting plane
Hardcopy , PDF
English
31-01-2011
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test environment
5 Instrumentation
6 Definition, location, installation, and operation
of noise source under test
7 Reference box and measurement surface
8 Determination of sound power levels and sound
energy levels
9 Measurement uncertainty
10 Information to be recorded
11 Test report
Annex A (normative) - Qualification procedures for
the acoustic environment
Annex B (normative) - Microphone arrays on a
hemispherical measurement surface
Annex C (normative) - Microphone arrays on a
parallelepiped measurement surface
Annex D (informative) - Microphone arrays on a
cylindrical measurement surface
Annex E (normative) - Calculation of A-weighted sound
power levels and A-weighted sound
energy levels from frequency band levels
Annex F (normative) - Alternative microphone array
on a hemispherical measurement surface
for direct measurements of A-weighted
sound pressure levels
Annex G (normative) - Sound power level and sound
energy level under reference meteorological
conditions
Annex H (informative) - Guidelines on the development
of information on measurement uncertainty
Bibliography
Annex ZA (informative) - Relationship between this
European Standard and the Essential
Requirements of EU Directive 2006/42/EC
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