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
🇪🇸
UNE EN ISO 3745
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NEN EN ISO 3745
1,670
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18
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Microtech Services (Wessex)
Active
ISO 7251
# = 100 A
ISO 6888-3
1) A:2b based on ISO 4833-2:2013 Amd 1:2
2) A:6c based on ISO 21528-1:2017 by mos
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Mimete Srl Unipersonale
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ASTM B212-21
ASTM E1019-24
ASTM B527-24
BS EN ISO 3923-1
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Konventioneller
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ETSI EN 319 412
ETSI EN 319 401
ETSI EN 319 411-2
ETSI EN 319 411-1
Mitutoyo Deutschland
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Parallelendmaße 0,5 mm
DIN EN ISO 3650:1999
Parallelendmaße
> 10 mm
Parallelendmaße > 100 mm
+ 3 more
Mobiler Kalibrierdienst Fini
Active
Gleichspannung 3 mV
Messgeräte 10 mV
> 100 mV
> 220 mV
> 11 V
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IEC 61000-4-7
IEC 61000-4-15
IEC 61000-4-30
IEC 61400-21
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Temperatur 50 °C
Railway brake handbooks (UIC 547)
1) In den CMC sind die erweiterten Messu
IEC 61000-4-2: 2008
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IEC 61000-4-3: 2006
VDE 0847-4-3
IEC 61000-4-4: 2012
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Mühlenkreiskliniken AöR Institut für Laboratoriumsmedizin, Transfusionsmedizin und Mikrobiologie
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(Simulation des Signals
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NEOTES Ambiente e Qualità
Active
DIN EN 1186-3
DIN EN 17322
EPA 3535
BS EN 15662
EPA 3015
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2 · 10–6 mol/mol C 100 · 10–6 mol/mo
0,1 · 10–2 mol/mol < C 2,5 · 10–2 mol/
1 · 10–6 mol/mol C 100 · 10–6 mol/mo
5 · 10–6 mol/mol C 20 · 10–6 mol/mol
0,15 · 10–2 mol/mol C 20 · 10–2 mol/
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NMi TESTLAB
Active
IEC 61000-4-2: 2008
IEC 61000-4-3: 2006
IEC 61000-4-4: 2012
IEC 61000-4-5: 2005
IEC 61000-4-6: 2013
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NORMEC ABIOLAB
Active
NF T 90-412
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DIN EN ISO 6888-2
NF V08-054
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NORMEC QS
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NEN-EN 13361
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NEN-EN 13491
DIN EN 13493
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NSF Wales Limited
Active
BS EN ISO 7686:2005
DIN EN 997
DIN EN 13079
DIN ISO 10381-7
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Narda Safety Test Solutions
Active
Elektrische Feldstärke /
2 V/m
2,5 V/m
1 V/m
Magnetische Feldstärke /
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