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I.S. EN ISO 3744:2010

Current
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
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2010

Publisher

National Standards Authority of Ireland

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

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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