ISO 9614-1:2023

Sound Power โ€” Intensity Method (Discrete Points)

This test uses a sound intensity probe to measure acoustic intensity at discrete points on a measurement surface, allowing determination of sound power levels without requiring a fully anechoic environment. The intensity-based approach is effective for characterizing noise sources in semi-reverberant or field conditions where traditional pressure-based methods are unreliable. It provides directional acoustic information and is valuable for source localization and acoustic modification assessment. Accreditation ensures proper probe calibration, measurement procedures, and data processing are maintained to standards.

What it measures

  • Sound intensity magnitude and direction (vector)
  • Sound power level by surface integration
  • A-weighted and frequency-weighted acoustic power
  • Sound radiation patterns from complex sources
๐Ÿ‡ฉ๐Ÿ‡ช DIN EN ISO 9614-2 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN ISO 9614-2 ๐Ÿ‡ซ๐Ÿ‡ท NF EN ISO 9614-2 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN ISO 9614-2 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN ISO 9614-2 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN ISO 9614-2 ๐Ÿ‡ฉ๐Ÿ‡ช DIN EN ISO 3744 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN ISO 3744 ๐Ÿ‡ซ๐Ÿ‡ท NF EN ISO 3744 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN ISO 3744 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN ISO 3744 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN ISO 3744
1,868 Accredited labs
20 Countries

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RvA L543 Rijswijk Zh, NL
DIN EN 143 DIN EN 12941 DIN EN 14387 DIN EN 12942 DIN EN ISO 10140-3
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RvA L355 Delft, NL
IEC 15408-1 IEC 18045
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RvA L012 Hoogvliet Rotterdam, NL
ISO 10370 DIN EN ISO 5163 IP 411, ISO 6251 ISO 3405 NEN 6646 + 3 more
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RvA L254 Velp Gld, NL
DIN EN 772-16 BS EN ISO 10545-2:2018 DIN EN 1344 DIN EN 12953-8 DIN EN 16510-2-4 + 3 more
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TAUW

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RvA L429 Deventer, NL
NEN 2826 NEN-EN 14791 2 ASTM D4157-13 ETSI EN 301 489-1 V2.2.3 2019-11 DIN EN 14792 + 3 more
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RvA L059 Rotterdam, NL
DIN EN ISO 3596 DIN EN ISO 14780 BS ISO 18283:2022 DIN EN ISO 10893-6 DIN EN 61442 + 3 more
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RvA I309 Culemborg, NL
#EN ISO 5164:14 # EN 116-97 # ISO 13736 NEN 4400-1 #ISO 6618
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Themisis

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RvA I381 Zaltbommel, NL
#EN ISO 5164:14 # EN 116-97 # ISO 13736 NEN 4400-1 #ISO 6618
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RvA I167 Son En Breugel, NL
DIN EN ISO 17232 DIN EN 14960 NEN 3140 #EN ISO 5164:14 EN 1069 + 3 more
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UL TS

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RvA L662 'S-Gravenhage, NL
IEC 18045 IEC 15408-1
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VSL

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RvA K999 Delft, NL
HCS LF 1 1 HCS LF 2 1 HCS LF 1 3 HCS LF 12 HCS LF 22 + 3 more
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RvA L402 Deventer, NL
DIN EN ISO 16911-1 DIN EN 14789 DIN EN 14790 DIN EN 13725:2003-07 und Berichtigung AG2 and IS EN 15259:2007 + 1 more
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Industries

Automotive and vehicle noise source characterization Machinery and equipment acoustic testing Building services and HVAC noise assessment Aerospace and transportation noise evaluation Environmental noise consulting and source identification

Related Standards

  • ISO 9614-2 Determination of sound power levels of noise sources by sound intensity โ€” Part 2: Measurement by scanning
  • ISO 3744 Determination of sound power levels of noise sources using sound pressure โ€” Precision method in anechoic and hemi-anechoic rooms
  • ISO 9613-1 Attenuation of sound during propagation outdoors โ€” Part 1: Calculation of the absorption of sound by the atmosphere

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