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
🇩🇪
DIN EN ISO 3744
🇬🇧
BS EN ISO 3744
🇫🇷
NF EN ISO 3744
🇮🇹
UNI EN ISO 3744
🇪🇸
UNE EN ISO 3744
🇳🇱
NEN EN ISO 3744
🇩🇪
DIN EN ISO 3745
🇬🇧
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 1,101–1,125 of 1,670 labs
Olfasense
Active
DIN EN 13725:2003-07 und Berichtigung
DIN ISO 16000-28
DIN EN ISO 16000-9
DIN EN ISO 16000-11
VDA 270
Olfasense UK
Active
IEC 60519-11
BS EN BS EN ISO 21877:2019
DIN EN ISO 16911-1
Standard and BS EN 15259:2007
DIN EN 13126-19
+ 3 more
ISO 11819-1
(N 2 O) 0,000008
DIN EN ISO 16911-1
AG2 and IS EN 15259:2007
DIN EN 14790
+ 3 more
ETSI EN 301 489-1 V2.2.3 2019-11
ASTM D4157-13
BS ISO 11338-1:2003
DIN EN ISO 16911-1
NEN-EN 14791 2
+ 3 more
One Scientific
Active
ISO 6888-1
ISO 21528-2
BS ISO 4832:2006
ISO 4833-1
ISO 6579-1
+ 3 more
ISO 6974-1
ISO 6974-2
ISO 6974-6
ISO 6975
DIN EN 12697-5
+ 3 more
Optical Test & Calibration
Active
DC Resistance
DC CURRENT
DC VOLTAGE
DC RESISTANCE (cont’d)
DIN EN 1264-5
DIN EN 13647
DIN EN 71-10
DIN EN 50642
DIN EN ISO 14184-2
+ 3 more
DIN EN ISO 12185
ASTM D 4052
DIN EN ISO 3405
ASTM D 86
DIN EN 13016-1
+ 3 more
PHH Environmental (UK)
Active
HSG 227 (2004))
(HSG 264, 2012)
HSG 264 (2012) and Appx. 3 of
(HSG 248) – 2021
(PCM) based on HSG 248
Parallelendmaße aus 0,5 mm
Einstellringe aus Stahl *
nach DIN EN ISO 3650:1999
Keramik *
DIN EN ISO 3650:1999
+ 3 more
PPT
Active
Kraft
Zug- und Druckkraft
0,4 N·m
Längenänderungsmessein
Parallelendmaße * 0,5 mm
+ 3 more
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
Railway brake — magnetic track brakes (U
− Kraft (WPM)
nur Vor-Ort-Kalibrierungen
Kraft (WPM) 0,1 kN
Vibration measuring instruments — test m
+ 3 more
IEC 60730-1: 2013
DIN EN 60730-2-8
IEC 61000-6-1
DIN EN 50131-2-3
DIN EN 60730-2-9
+ 3 more
rs11887534
HABP2-Gen (c.1601G>A) rs7080536
IEC 61924-2
DIN EN ISO 1974
DIN 53121
+ 3 more
Dosimetrie
Luftkerma
5 mGy
2 mGy
100 µGy
+ 3 more
PZT
Active
DIN EN ISO 10256
prEN 50365
DIN EN ISO 21420
DIN EN ISO 3741
DIN EN ISO 13688
+ 3 more
Paragon Scientific
Active
Refractive Index
Capillary Viscometer Calibration
2.92 mm systems (continued)
Liquids
Density in Air at 20
+ 3 more
Particle Technology
Active
MIL-STD 810D, Method 510.2
MIL-STD 810E, Method 510.3
MIL-STD 810G:2008 Method 501.5
MIL-STD 810F, Method 510.4
MIL-STD-810H, Method 510.7
+ 3 more
Hämoglobin
Selen
Lithium
Zink
Eisen, Kupfer
+ 3 more
No matching labs found.