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
1,868
Accredited labs
20
Countries
Showing 1,326–1,350 of 1,868 labs
Rhopoint Metrology
Active
(Steel and tungsten carbide)
LENGTH (cont’d)
pneumatic tyres (See Note 1)
LENGTH (cont.)
Plain plug gauges (taper)
+ 3 more
Richard L Thomas Associates
Active
(HSG 264, 2012)
HSG 264 (2012) and Appx. 3 of
HSG 227 (2004))
Appendix 5 of HSG 227 (2004))
(HSG 248) – 2021
OP11 based on HSG 248
(PCM) based on HSG 248
OP04 based on HSG 248
Robert Koch-Institut
Active
Salmonellen
Salmonella enterica, Shigellen, Yersinie
Shigellen
Salmonella sv. Paratyphi
Neisseria meningitidis, Listeria
+ 3 more
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
elektronische Waagen
1) In den CMC sind die erweiterten Messu
DIN EN ISO 12185
DIN EN ISO 3405
DIN EN 13016-1
DIN EN ISO 20884
DIN EN ISO 20846
+ 3 more
Spinocerebelläre Ataxien
Bindegewebserkrankungen: ACTA2, COL1A1,
HD; Chorea Huntington
(Huntingtin-Gen)
Dentatorubrale-Pallidoluysiane
+ 3 more
Rwanda Standards Board
Active
ISO 6222
AM09 based on BS ISO 21527-1:
ISO 6579-1
ISO 4832
ISO 2171
+ 3 more
DIN EN ISO 6507-1
DIN EN ISO 6508-1
NF X70-100-1
DIN EN 45545-2
NF X70-100-2
+ 3 more
DIN EN 12457-2
DIN EN ISO 6888-1
DIN EN 15634-1
ASTM D888-18
EPA 8015
+ 3 more
Durchfluss von 2 m3/h bis 800 rn3/h
− Durchfluss von Flüssigkeiten
Volumendurchfluss
dV/dt von
strörnenden
+ 3 more
SARIA
Active
AM-01 based on BS 4401:Part 1:
AM-32 based on BS 4401:Part 4:
AM-03 based on BS ISO 937:2023
AM-04 based on BS ISO
AM-31 based on BS EN ISO
+ 3 more
SATRA Technology Centre
Active
ISO 4931:1986 (withdrawn)
ISO 3759:1984 (withdrawn)
DIN EN 13759
DIN EN 12150-1
DIN EN ISO 15797
+ 3 more
SAVOIE ANALYSES
Active
NF X 31 615 (purge
DIN ISO 17289
ISO 5815-1
EN 13087-2
DIN EN ISO 7027-2
+ 3 more
NF T 90-412
NF T90-350
DIN EN ISO 7899-1
DIN EN 12880
NF X 31-615
+ 3 more
SCHMIDT Technology
Active
Strömungsgeschwin- 0,1 m/s
− Strömungsgeschwindigkeit von Gasen
Kraft (WPM)
Vibration measuring instruments — requir
> 1 kN
DIN EN ISO 717-1
DIN EN ISO 10052
DIN EN ISO 10140-1
DIN EN ISO 10140-2
DIN EN ISO 10140-4
+ 3 more
SDL Atlas
Active
Betriebsübertragungsmaß
Crockmeters
Pilling Tester (Box & Drum)
Pilling Tester (Random)
Burst Strength Tester
+ 3 more
DIN EN ISO 12966-2
DIN EN 12266-2
DIN EN ISO 12966-4
DIN EN 13656
DIN 30660
+ 3 more
No matching labs found.