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 + AMD 1:2017)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2017

Publisher

German Institute for Standardisation (Deutsches Institut für Normung)

National foreword
National Annex NA (informative) - Bibliography
European foreword
European foreword to Amendment 1
Foreword to Amendment 1
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Reference meteorological conditions
5 Test rms
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 hemifree 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
         EU Directive 2006/42/EC
Bibliography

Defines methods for measuring the sound pressure levels on a measurement surface enveloping a noise source (machinery or equipment) in an anechoic room or a hemi-anechoic room.

DevelopmentNote	Partially supersedes DIN 45635-1 E. (10/2004)
DocumentType	Standard
Pages	75
PublisherName	German Institute for Standardisation (Deutsches Institut für Normung)
Status	Current

Standards	Relationship
ISO 3745:2012	Identical
EN ISO 3745:2012/A1:2017	Identical

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
DIN EN 61183:1994-12	ELECTROACOUSTICS - RANDOM-INCIDENCE AND DIFFUSE-FIELD CALIBRATION OF SOUND LEVEL METERS
DIN EN 61260:2003-03	ELECTROACOUSTICS - OCTAVE-BAND AND FRACTIONAL-OCTAVE-BAND FILTERS
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
DIN EN 61672-1:2014-07	ELECTROACOUSTICS - SOUND LEVEL METERS - PART 1: SPECIFICATIONS (IEC 61672-1:2013)
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 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
DIN EN ISO 4871:2009-11	Acoustics - Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996)
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
DIN EN 27574-2:1989-03	ACOUSTICS; STATISTICAL METHODS FOR DETERMINING AND VERIFYING STATED NOISE EMISSION VALUES OF MACHINERY AND EQUIPMENT; PART 2: METHODS FOR STATED VALUES FOR INDIVIDUAL MACHINES
DIN EN 27574-3:1989-03	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 11690-1:1996	Acoustics Recommended practice for the design of low-noise workplaces containing machinery Part 1: Noise control strategies
ISO 6926:2016	Acoustics Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
DIN EN 60942:2004-05	ELECTROACOUSTICS - SOUND CALIBRATORS
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
DIN EN 27574-1:1989-03	ACOUSTICS; STATISTICAL METHODS FOR DETERMINING AND VERIFYING STATED NOISE EMISSION VALUES OF MACHINERY AND EQUIPMENT; PART 1: GENERAL CONSIDERATIONS AND DEFINITIONS
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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DIN EN ISO 3745:2017-10

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