I.S. EN ISO 3745:2012
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The latest, up-to-date edition.
ACOUSTICS - DETERMINATION OF SOUND POWER LEVELS AND SOUND ENERGY LEVELS OF NOISE SOURCES USING SOUND PRESSURE - PRECISION METHODS FOR ANECHOIC ROOMS AND HEMI-ANECHOIC ROOMS (ISO 3745:2012)
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English
01-01-2012
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Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
National Foreword
European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Reference meteorological conditions
5 Test rooms
6 Instrumentation
7 Definition, location, installation and operation
of noise source under test
8 Measurement surface
9 Determination of sound power levels and
sound energy levels
10 Measurement uncertainty
11 Information to be recorded
12 Test report
Annex A (normative) - General procedures for qualification
of anechoic and hemi-anechoic rooms
Annex B (normative) - Qualification procedure for spaces
within test rooms used in the determination of sound
power levels and sound energy levels of specific
noise sources
Annex C (normative) - Calculation of A-weighted sound
power levels and A-weighted sound energy levels from
one-third-octave band levels
Annex D (normative) - Array of microphone positions
on a spherical measurement surface in a free field
Annex E (normative) - Arrays of microphone positions
on a hemispherical measurement surface in a
hemi-free field
Annex F (normative) - Coaxial circular paths of
microphones on a hemispherical measurement surface
in a hemi-free field
Annex G (normative) - Meridional paths of microphones
on a hemispherical measurement surface in a
hemi-free field
Annex H (normative) - Spiral paths of microphones on
a hemispherical measurement surface in a
hemi-free field
Annex I (informative) - Guidance on the development
of information on measurement uncertainty
Annex ZA (informative) - Relationship between this European
Standard and the Essential Requirements of
Directive 2006/42/EC aimed to be covered
Bibliography
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