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
🇫🇷
NF EN ISO 3745
🇮🇹
UNI EN ISO 3745
🇪🇸
UNE EN ISO 3745
🇳🇱
NEN EN ISO 3745
1,670
Accredited labs
18
Countries
Showing 151–175 of 349 labs
Eurofins Food Testing UK
Active
ISO 6579-1
ISO 4832
EUMM 3.03 based on BS EN
EUMM 3.07 based on BS EN ISO
BS ISO 21528-2:2017
+ 3 more
Eurofins Food Testing UK
Active
ISO 712
ISO 4833-1
on BS EN ISO 1736:2008
ISO 21528-2
BS ISO 4832:2006
+ 3 more
FIRA International
Active
BS 7177
BS 5852
DIN EN 597-1
BS 6807:1986
DIN EN 597-2
+ 3 more
Fibre Clear Consulting
Active
M002based on HSG 248
(HSG 248) – 2021
(PCM) based on HSG 248
Fluke Precision Measurement
Active
Frequenc 220 mV range
FREQUENCY
10 Hz to 100 kHz
difference from 10 % to 100 % of the sta
6105A control 0° to 360°
+ 3 more
Fourstage Environmental
Active
(HSG 248) – 2021
(PCM) based on HSG 248
DOC/002 based on HSG 248
Fugro GB
Active
BS 1377: Part 2: 1990
BS 1377-3:2018 + A1:2021
ASTM D4186-12: 2020
ASTM D5334-22
ASTM D2216-19
+ 3 more
Furness Controls
Active
FLOW
Gas pressure (absolute)
Gas pressure (gauge)
DC CURRENT
TEMPERATURE
+ 3 more
G&L Consultancy
Active
(HSG 248) – 2021
M4 based on HSG 248
(PCM) based on HSG 248
M3 based on HSG 248
(HSG 264, 2012)
+ 1 more
G&M Procter
Active
based on ISO 11133:2014+Amd
dependent) based on BS EN
based on BS EN 12322:1999
G.B.N.S. Partnership
Active
(HSG 248) – 2021
(PCM) based on HSG 248
PRO02 based on HSG 248
Glasgow City Council
Active
(HSG 248) – 2021
staining based on HSG 248
F2011 (BS 696:Part 2:1989)
F0131 (BS 1741:10-1:1989) using
F0008 (BS 696:Part 2:1989) using
+ 3 more
DIN EN 15136
DIN EN 137
Clause 6.24, EN 13274-5:2001
Clause 7.4.1.1, EN 13274-3:2001
Clause 7.4.1.2, EN 13274-3:2001
+ 3 more
Gully Howard Technical
Active
HSG 227 (2004))
(HSG 264, 2012)
HSG 264 (2012) and Appx. 3 of
Appendix 5 of HSG 227 (2004))
No matching labs found.