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
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UNE-EN ISO 6892-1
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ERC Testing
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BS EN ISO 10077-1:2006
published 2024) for BS EN
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DIN ISO 10381-5
DIN ISO 18400-102
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Sound intensity — scanning method (ISO 9
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NF X43-050 (parties utiles de
NF X 43-050
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NF X43-050 (parties utiles de la
NF X 43-269 – Annexe K
NF X 43-050
NF X 43-269 - Annexe K
NF X43-050 (parties utiles de la
NF X 43-269 - Annexe K
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NF X 43-050
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UNE-EN ISO 712
UNE-EN ISO 5534
ISO 13580
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DIN EN ISO 21528-2
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NF U47-101
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