I.S. 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
01-01-2010
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Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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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
Defines methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping the noise source (machinery or equipment) in an environment that approximates to an acoustic free field near one or more reflecting planes.
| DocumentType |
Standard
|
| Pages |
93
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| SN EN ISO 3744:2011 | Identical |
| UNE-EN ISO 3744:2011 | Identical |
| BS EN ISO 3744:2010 | Identical |
| ISO 3744:2010 | Identical |
| NF EN ISO 3744 : 2012 | Identical |
| UNI EN ISO 3744 : 2010 | Identical |
| NEN EN ISO 3744 : 2010 | Identical |
| NBN EN ISO 3744 : DEC 2010 | Identical |
| NS EN ISO 3744 : 2010 | Identical |
| EN ISO 3744:2010 | 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 |
| ISO 13472-1:2002 | Acoustics Measurement of sound absorption properties of road surfaces in situ Part 1: Extended surface method |
| ISO 4871:1996 | Acoustics — Declaration and verification of noise emission values of machinery and equipment |
| ISO 12001:1996 | Acoustics — Noise emitted by machinery and equipment — Rules for the drafting and presentation of a noise test code |
| 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 3382-2:2008 | Acoustics Measurement of room acoustic parameters Part 2: Reverberation time in ordinary 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 9296:2017 | Acoustics — Declared noise emission values of information technology and telecommunications equipment |
| 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 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 10534-2:1998 | Acoustics — Determination of sound absorption coefficient and impedance in impedance tubes — Part 2: Transfer-function method |
| 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 |
| ISO 3745:2012 | 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 |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
| ISO 10534-1:1996 | Acoustics Determination of sound absorption coefficient and impedance in impedance tubes Part 1: Method using standing wave ratio |
| 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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