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
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DC Resistance
AC VOLTAGE (continued)
AC POWER
AC CURRENT
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Intek
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DIN EN 60068-2-30
IEC 62080
IEC 61000-6-1
IEC 61000-6-2: 2005
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Intertek Caleb Brett GERMANY
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IEC 61000-3-11: 2017
IEC 61000-3-12: 2011
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Intertek Polychemlab
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DIN EN ISO 10675-1
DIN EN ISO 19458
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NEN 6953
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Intona
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20 HRB
20 HRC
40 HRD
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ISO 178
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elektronische Waagen
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MIL-STD-810G, Method 508:7
BS 2011:2.1 Ca:1977
(IEC 60068-2-10:2005+A1:2018,
MIL-STD-810H, Method 508:8
Ebenheitsabweichung
verkörperungen z.B.
platten nach DIN 876:1984
Geradheitsabweichung
ebener Flächen, z.B.
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Johnson and Allen
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DC CURRENT
INSPECTION EQUIPMENT
AC CURRENT 50 Hz RMS
uncertainties may be increased.
Johs. Boss
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(ein- und mehrgängige
winde mit geradlinigen
unsymmetrischem Profil
0,5 mm bis 6 mm)
Außengewinde Nenndurchmesser
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MIL-PRF-46103E
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DIN EN ISO 1522
DIN EN ISO 1523
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Jurjanz
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Parallelendmaße aus 0,5 mm
DIN EN ISO 3650:1999
Parallelendmaße aus > 100 mm
Messschieber für
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LENGTH
ended (excluding length bars)
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