Scope
ISO 3747:2010
Sound Power Level — In-Situ Reference Source Method
This engineering/survey method determines sound power levels using a calibrated reference sound source to account for acoustic environmental conditions during in-situ measurements. It is particularly useful for large or immobile equipment where laboratory testing is impractical, and for on-site verification of noise compliance. The reference source approach compensates for acoustic environmental effects, improving accuracy compared to basic survey methods. Accreditation ensures proper reference source maintenance and measurement protocols are followed. This method is essential for field acceptance testing and environmental noise assessments.
What it measures
- Sound power level (Lw) referenced to 1 pW
- A-weighted and frequency-weighted sound power
- Environmental acoustic correction factors
- In-situ acoustic performance
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DIN EN ISO 3746
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BS EN ISO 3746
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NF EN ISO 3746
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UNI EN ISO 3746
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UNE EN ISO 3746
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NEN EN ISO 3746
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DIN EN ISO 9614-1
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BS EN ISO 9614-1
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NF EN ISO 9614-1
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UNI EN ISO 9614-1
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UNE EN ISO 9614-1
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NEN EN ISO 9614-1
1,868
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UNE-EN ISO 140-5
UNE-EN ISO 16283-3
UNE-EN ISO 16283-2
UNE-EN ISO 140-7
UNE-EN ISO 3382-2
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QUACER
Active
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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CEM DI-021
CEM DI-004
CEM EL-007
CEM DI-003
CEM DI-008
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EURAMET CG-6
CEM DI-021
CEM DI-004
CEM DI-013
CEM DI-012
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DIN EN 61010-2-010: 2015
DIN EN 60335-2-9
IEC 61000-4-8: 2009
IEC 61010-2-010: 2014
DIN EN 61010-2-101
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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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UNE-EN ISO 16283-1
UNE-EN ISO 16283-3
UNE-EN ISO 16283-2
ISO 13347-3
BS EN ISO 5801:2008 method
ISO 14695
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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TECNATOM, S.A. (Unipersonal)
Active
UNE 73109
IEC 60780 (1998)
UNE 73109 (2001)
ISO 28218
ISO 27048
UNE-EN ISO 14644-3
UNE-EN ISO 14644-1 (sin realizar toma se
ISO 14644-3
UNE-EN 12469
TELEACUSTIK INGENIEROS
Active
UNE-EN ISO 16283-3
DIN EN ISO 16283-1
UNE-EN ISO 3382-2
BS EN ISO 16283-2:2020
THOR ESPECIALIDADES
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DIN EN 16615
DIN EN 17658
DIN EN 13697
IEC 60127-6
DIN EN 13727
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TRADELAB, S.L. (Unipersonal)
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UNE-EN 60942
UNE-EN 61672-3
UNE-EN 60804
UNE-EN 60651
UNE-EN 61252
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UNE-EN ISO 868
ASTM D 2240
ISO 48-9
UNE 7050-3
UNE-EN ISO 10360-2
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UNE-EN 61672-3
UNE-EN 60651
UNE-EN 60804
UNE-EN 61252 (Técnica calibrador acústic
UNE-EN 60942
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UNE-EN 60903
UNE-EN IEC 61243-1
UNE-EN 50508
UNE 204001
UNE-EN 61111
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UNE-EN 14181
UNE-EN 13284-2
UNE-EN 15259
UNE-EN 16911-2
UNE-EN 14385
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UNIVERSITAT DE GIRONA
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UNE-EN 25663
UNE-EN 872
UNE-EN ISO 6878
UNE EN 27888
UNE-EN ISO 10523
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URIKER
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UNE 77061
SM 4500-NO-3 E
UNE-EN ISO 7027-1
ISO 15923-1
UNE-EN ISO 7393-2
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