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
1,670
Accredited labs
18
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Showing 651–675 of 1,670 labs
UNE-EN 1793-5
UNE-EN 1793-6
UNE-EN 60404-14
0 mT ≤ B ≤ 75,7 mT (196 ± 3) mT (990 ± 4
3 mT ≤ B ≤ 300 mT 300 mT ≤ B ≤ 1600 mT
UNE-EN ISO 16283-2
UNE-EN ISO 140-7
UNE-EN ISO 3382-2
UNE-EN ISO 16283-1
UNE-EN ISO 140-4
INOVALYS - Site d'Angers
Active
NF U47-036-1
DIN EN ISO 14403-2
NF T 90-412
NF T90-350
DIN EN ISO 7899-1
+ 3 more
INOVALYS - Site de Nantes
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NF V 05-116
NF V 04-415
NF V 04-407
NF V04-403
NF V04-401
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INOVALYS - Site de Tours
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DIN EN ISO 17294-2
DIN EN ISO 14403-2
NF EN ISO 7887 –
NF T 90-412
DIN EN ISO 7899-1
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INOVALYS - Site de Vannes
Active
NF V08-106
DIN EN ISO 17294-2
DIN EN ISO 21528-2
ISO 19343
NF T90-105-2
+ 3 more
Plasma, Serum, Plasma 0,5 mmol/L
Plasma, Serum, Plasma 50 mmol/L
Plasma, Serum, Plasma
Material
Urin
+ 3 more
DIN EN ISO 7932
DIN EN ISO 22964
NF V08-059
DIN EN ISO 6579-1
NF V08-036
+ 3 more
ISO 11731
SM 5220
UNE-EN ISO 6222
UNE-EN ISO 20236
UNE EN 27888
+ 3 more
INTA
Active
ISO 16063-21
EN 55016-1-6
CEM EL-025
UNE-EN ISO 376
UNE-EN ISO 7500-1
+ 3 more
UNE-EN ISO 10704
UNE 73350-1
UNE 73311-5
ISO 11665-4
UNE 31010
+ 1 more
ITA
Active
IEC 61000-4-13: 2002
DIN EN 50121-3-2
IEC 61000-3-2: 2014
DIN EN 60601-1-2
IEC 61000-3-3
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IEC 61000-3-2: 2014
UNE-EN IEC 61000-3-2
UNE-EN 61000-3-2
UNE-EN IEC 61000-6-4
IEC 61000-3-3
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(380 - 780 nm) 1 < R ≤ 100
0,01< DO ≤ 0,1 0,1 < DO ≤ 0,3 1,1 < DO <
DIN EN 1040
DIN EN 1656
DIN EN 14561
IEC 60127-6
DIN EN 13727
+ 3 more
INTERTEK France
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DIN EN ISO 1833-6
DIN EN ISO 1833-2
DIN EN ISO 1833-7
DIN EN ISO 1833-1
DIN EN ISO 1833-20
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IEC 62271-1: 2017-07
DIN EN 62271-1
VDE 0671-1
IEC 62271-100: 2021
VDE 0671-100
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DIN EN 1230-1
EN 1230-2
DIN 10955
DIN ISO 8784-1
DIN 54378
+ 3 more
UNE-EN ISO 16283-1
UNE-EN ISO 16283-3
UNE-EN ISO 16283-2
DIN 4150-1
DIN 4150-2
DIN 4150-3
DIN EN ISO 3741
DIN EN ISO 3743-2
+ 3 more
DIN 4150-1
DIN 4150-2
DIN 4150-3
DIN SPEC 45653
ISO 18406
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