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
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Showing 101–125 of 1,868 labs
DIN EN ISO 20344
DIN EN 13634
BS EN ISO 20344::2011 Clause 5.1
DIN EN ISO 22568-1
ISO 22568-1: 2019 Clause 5.2.1
+ 3 more
UNE-EN 772-11
UNE 136029
DIN 4772:1979
DIN EN 16510-2-4
DIN EN 17539
+ 3 more
UNE 81752
UNE 81550
UNE 81599
UNE 81587
UNE 81586
ASPECT Service Environnement
Active
NF-T 90-029
ISO 5815-1
NF T 90-043
NF-T 90-101
NF T90-004
+ 3 more
IEC 62471-7
IEC 62471: 2006
UNE-EN 13032-1
DIN EN 62471: 2009
UNE-EN 13032-4
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ISO 5667-5
DIN EN 12457-2
ISO 18787
DIN EN ISO 6888-1
UNI 10802
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Gleichstromleistung
/ Messgeräte
Wirkleistung
Leistungsfaktor
- Gleichspannung
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IEC 15408-1
IEC 18045
IEC 18367
IEC 20543
IEC 20004
ASTM E8/E 8M
DIN EN 10002-1
DIN EN 10002-5
DIN EN ISO 6892-2
DIN EN ISO 643
+ 3 more
AUDIOLID, S.L.(Unipersonal)
Active
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
+ 2 more
AUDIOTEC INGENIERÍA ACÚSTICA
Active
UNE-EN ISO 10140-2
UNE-EN ISO 10140-3
UNE-EN ISO 10140-1
UNE-EN ISO 354
UNE-EN 1793-1
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AVEYRON LABO
Active
DIN EN ISO 14403-2
NF V 04-407
NF T 90-412
DIN EN ISO 7899-1
DIN EN ISO 10304-1
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AVL DiTEST
Active
Abgasmessgeräte für
− Abgasmessgeräte für Fremdzündungsmotor
Kohlenstoffmonoxid
Kohlenstoffmonoxid CO
Kohlenstoffdioxid CO2
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AWE
Active
(HSG 248) – 2021
LQP007 based on HSG 248
LQP003 based on HSG 248
(PCM) based on HSG 248
the guidance of GPG 14
PERSONAL DOSE EQUIVALENT:
RESPONSE:
Absolute Calibration
Active
DC Resistance
CFH-Gen, Macula-Degeneration
DC RESISTANCE (continued)
DC VOLTAGE
DC VOLTAGE (continued)
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Acorn Analytical Services
Active
(HSG 248) – 2021
(PCM) based on HSG 248
staining based on HSG 248
(HSG 264, 2012)
Appendix 5 of HSG 227
Acoustic Design Technology
Active
ISO 7171
BS EN ISO 140-4:1998
HTM 08-01
ISO 1407
BS EN ISO 717-2:2020
ISO 11654
BS EN ISO 10140-2:2021
ISO 7171
ISO 354
BS EN ISO 10140-3:2021
+ 3 more
Sound Calibrators
Pistonphones
based:
level
Microphones
+ 2 more
DIN EN ISO 11127-6
DIN EN 13727
1) BS EN ISO 11930:2019+
2) QMIC WI 22, based on BS EN
Taupunkttemperatur
Railway braking — urban guided transport
Temperaturtransmitter
Widerstandssensor *)
–30 °C
+ 3 more
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