Scope
ISO 3746:2010
Sound Power Level — Survey Method
This test determines sound power levels of noise sources using an enveloping measurement surface and sound pressure level measurements. It is a survey-grade method suitable for field measurements of machinery, equipment, and industrial sources in moderately reflective environments. The method is widely used for noise compliance verification, product development, and environmental impact assessments. Accredited testing ensures consistent, defensible results for regulatory compliance and product labeling. This method bridges the gap between laboratory-grade precision and practical field measurements.
What it measures
- Sound power level (Lw) in decibels
- A-weighted and frequency-weighted sound power
- Directional sound power distribution
- Acoustic performance of noise sources
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DIN EN ISO 3744
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BS EN ISO 3744
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NF EN ISO 3744
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UNI EN ISO 3744
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UNE EN ISO 3744
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NEN EN ISO 3744
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DIN EN ISO 3745
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BS EN ISO 3745
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NF EN ISO 3745
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UNI EN ISO 3745
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UNE EN ISO 3745
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NEN EN ISO 3745
1,868
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UNE-EN 13032-1
UNE-EN 13032-4
UNE-EN 62722-2-1
IEC 62722-2-1
IEC 62717
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DIN 53483-2
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ISO 18787
AM09 based on BS ISO 21527-1:
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NF V04-408
0.95) based on BS ISO 21527-2:2008
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NF V08-401
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DIN EN ISO 6888-1
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DIN EN ISO 6888-1
DIN EN ISO 6888-2
DIN ISO 16649-2
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Absolutdruck Pabs
> 0,05 bar
Negativer und
positiver Überdruck p
(ein- oder mehrgängige
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SKZ - Testing
Active
Bauart wie GR 1482
DIN ISO 48-4
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DIN EN ISO 868
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IEC 61000-4-2: 2008
IEC 61000-4-3: 2006
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IEC 61000-4-5: 2005
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NF X 43-050
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SMA Solar Technology
Active
IEC 61000-4-2: 2008
VDE 0847-4-2
IEC 61000-4-3: 2006
VDE 0847-4-3
IEC 61000-4-4: 2012
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SOCOR
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DIN EN 14385
NF X43-551
ETSI EN 301 489-1 V2.2.3 2019-11
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(HSG 248) – 2021
SCI/ASB/003 based on HSG 248
(PCM) based on HSG 248
SCI/ASB/001 based on HSG 248
SOCOTEC ENVIRONNEMENT
Active
DIN EN 14385
ETSI EN 301 489-1 V2.2.3 2019-11
DIN EN ISO 21877
NF X 43-317
DIN EN 14181
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SOCOTEC UK
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DIN EN 13284-1
ENV/054 based on BS EN
ISO 11731
DIN EN 14791
IEC 60519-11
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ISO 13347-3
BS EN ISO 5801:2008 method
ISO 14695
SOLVIAS FRANCE
Active
ISO 11737-3
DIN EN ISO 11737-2
NF EN 13824 (norme
BS EN ISO 11737-1:2018
UNE-EN ISO 140-5
UNE-EN ISO 16283-3
UNE-EN ISO 16283-2
UNE-EN ISO 140-7
UNE-EN ISO 16283-1
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