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SSH EN ISO 3744:2010

Akustika - Përcaktimi i nivele të fuqis të tingullit dhe niveleve të energjis së tingullit në burimet e zhurmës duke përdorur presionin e tingullit - Metodat inxhinierike për një fushë të lirë mbi një plan reflektues (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 3744:2010)
30 qer 2011

General information

60.60     30 qer 2011

DPS

DPS/KT 211

European Norm

17.140.01  

anglisht  

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Scope

ISO 3744:2010 specifies 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. The sound power level (or, in the case of noise bursts or transient noise emission, the sound energy level) produced by the noise source, in frequency bands or with frequency A-weighting applied, is calculated using those measurements.
The methods specified in ISO 3744:2010 are suitable for all types of noise (steady, non-steady, fluctuating, isolated bursts of sound energy, etc.) defined in ISO 12001.
ISO 3744:2010 is applicable to all types and sizes of noise source (e.g. stationary or slowly moving plant, installation, machine, component or sub-assembly), provided the conditions for the measurements can be met.
The test environments that are applicable for measurements made in accordance with ISO 3744:2010 can be located indoors or outdoors, with one or more sound-reflecting planes present on or near which the noise source under test is mounted. The ideal environment is a completely open space with no bounding or reflecting surfaces other than the reflecting plane(s) (such as that provided by a qualified hemi-anechoic chamber), but procedures are given for applying corrections (within limits that are specified) in the case of environments that are less than ideal.
Information is given on the uncertainty of the sound power levels and sound energy levels determined in accordance with ISO 3744:2010, for measurements made in limited bands of frequency and with frequency A-weighting applied. The uncertainty conforms to ISO 12001:1996, accuracy grade 2 (engineering grade).

Related directives

Directives related to this standards.

89/392/EEC

Makineria - Siguria e makinerisë: kërkesa thelbësore të përgjithshme të shëndetit dhe sigurisë

98/37/EC

Makineria

2006/42/EC

Direktiva 2006/42/EC e Parlamentit Europian dhe e Këshillit të 17 majit 2006 për makinerinë, dhe amendimi i Direktivës 95/16/EC (rinovim)

Të harmonizuara
2000/14/EC

Emmetimi i zhurmës në mjedis nga pajisjet që përdoren jashtë

Life cycle

PREVIOUSLY

WITHDRAWN
SSH EN ISO 3744:2009

NOW

PUBLISHED
SSH EN ISO 3744:2010
60.60 Standard published
30 qer 2011

Related project

Adopted from EN ISO 3744:2010

Adopted from ISO 3744:2010