10/30094845 DC : 0
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BS ISO 3745 - ACOUSTICS - DETERMINATION OF SOUND POWER LEVELS AND SOUND ENERGY LEVELS OF NOISE SOURCES USING SOUND PRESSURE - PRECISION METHODS FOR ANECHOIC TEST ROOMS AND HEMI-ANECHOIC TEST ROOMS
Hardcopy , PDF
English
30-04-2012
Foreword
Introduction
1 Scope
2 Normative references
3 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 Information to be reported
Annex A (normative) - General procedures for qualification of
free-field and hemi-free-field 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
Bibliography
BS ISO 3745
| Committee |
EH/1/4
|
| DocumentType |
Draft
|
| Pages |
73
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| ISO 7574-2:1985 | Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 2: Methods for stated values for individual machines |
| ISO 4871:1996 | Acoustics — Declaration and verification of noise emission values of machinery and equipment |
| IEC 61183:1994 | Electroacoustics - Random-incidence and diffuse-field calibration of sound level meters |
| ISO 12001:1996 | Acoustics — Noise emitted by machinery and equipment — Rules for the drafting and presentation of a noise test code |
| ISO 3744:2010 | 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 |
| ISO 3743-2:1994 | Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation test rooms |
| ISO 7574-4:1985 | Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 4: Methods for stated values for batches of machines |
| ISO/TR 25417:2007 | Acoustics — Definitions of basic quantities and terms |
| ISO 9614-1:1993 | Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1: Measurement at discrete points |
| IEC 60942:2003 | Electroacoustics - Sound calibrators |
| ISO 3747:2010 | Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering/survey methods for use in situ in a reverberant environment |
| ISO 3740:2000 | Acoustics — Determination of sound power levels of noise sources — Guidelines for the use of basic standards |
| ISO 140-3:1995 | Acoustics — Measurement of sound insulation in buildings and of building elements — Part 3: Laboratory measurements of airborne sound insulation of building elements |
| ISO 9613-1:1993 | Acoustics — Attenuation of sound during propagation outdoors — Part 1: Calculation of the absorption of sound by the atmosphere |
| ISO 9614-2:1996 | Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 2: Measurement by scanning |
| ISO 7574-1:1985 | Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 1: General considerations and definitions |
| ISO 80000-8:2007 | Quantities and units — Part 8: Acoustics |
| ISO 3746:2010 | Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting plane |
| ISO 6926:2016 | Acoustics — Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels |
| ISO 9614-3:2002 | Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 3: Precision method for measurement by scanning |
| ISO 7574-3:1985 | Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 3: Simple (transition) method for stated values for batches of machines |
| ISO 3741:2010 | Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for reverberation test rooms |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
| ISO 11201:2010 | Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
| ISO 3743-1:2010 | Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for small movable sources in reverberant fields — Part 1: Comparison method for a hard-walled test room |
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