ISO 9614-1:2023

Sound Power — 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
🇩🇪 DIN EN ISO 9614-2 🇬🇧 BS EN ISO 9614-2 🇫🇷 NF EN ISO 9614-2 🇮🇹 UNI EN ISO 9614-2 🇪🇸 UNE EN ISO 9614-2 🇳🇱 NEN EN ISO 9614-2 🇩🇪 DIN EN ISO 3744 🇬🇧 BS EN ISO 3744 🇫🇷 NF EN ISO 3744 🇮🇹 UNI EN ISO 3744 🇪🇸 UNE EN ISO 3744 🇳🇱 NEN EN ISO 3744
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IMD Institut für Medizinische Diagnostik Berlin-Potsdam GbR IMD Potsdam MVZ

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IMD Labor Oderland GmbH MVZ Ärztliches Labor Frank Berthold und Kollegen

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HbA1c Eosinophile, Basophile, MCV, MCH) Retikulozyten Urinsediment Elektrolyte (Kalium, Natrium, Chlorid) + 3 more
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INSTAND e.V. - Gesellschaft zur Förderung der Qualitätssicherung in medizinischen Laboratorien e.V. Kalibrierlabor

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IPH Institut "Prüffeld für elektrische Hochleistungstechnik"

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DAkkS D-PL-12107-01-00 Berlin, DE
IEC 62271-1: 2017-07 DIN EN 62271-1 VDE 0671-1 IEC 62271-100: 2021 VDE 0671-100 + 3 more
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ISEGA, Forschungs- und Untersuchungs

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DIN EN 1230-1 EN 1230-2 DIN 10955 DIN ISO 8784-1 DIN 54378 + 3 more
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ITA Ingenieurgesellschaft für Technische Akustik mit beschränkter Haftung

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IWS Institut für Werkstoffkunde und Schweißtechnik

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Industrieanlagen- Betriebsgesellschaft mit beschränkter Haftung Kalibrierlabor

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InfraServ GmbH & Co. Wiesbaden KG Abteilung Immissionsschutz

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Infraserv GmbH & Co. Höchst KG Segment Site Services, Abteilungen Gewässerschutz, Immissionsschutz, Umwelt- und Prozessanalytik und Gefahrstoffe/Messstelle

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DAkkS D-PL-14332-01-01 Frankfurt am Main, DE
DIN 38402-A 11 DIN 38402-A 12 DIN 38402-A 13 DIN ISO 5667-5 (A 14) DIN EN ISO 5667-6 (A 15) + 3 more
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Ingenieurbüro Kuntzsch

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IEC 61400-12-1 IEC 61400-50 IEC 61400-50-1 IEC 61400-50-2 ISO 9613-2
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Ingenieurbüro für Akustik Busch

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DAkkS D-PL-20642-01-00 Kronshagen, DE
DIN EN 61400-11 IEC 61400-11 Edition 3.0 IEC 61400-11 Edition 3.1
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Ingenieurbüro g o e b e l

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DIN 56912 DIN EN 12198-1 DIN EN 12198-2 DIN EN 12198-3 DIN EN 60825-1 + 3 more
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Ingenieurgesellschaft Holzberg und Riehemann

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ISO 17987-6 ISO 17987-7 ISO 16845
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Institut für Hygiene und Umwelt

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DAkkS D-PL-14095-03-02 Hamburg, DE
DIN 38402-A 12 DIN ISO 5667-5 (A 14) DIN EN ISO 5667-6 (A 15) DIN EN ISO 19458 (K 19) DIN 19643-1 + 3 more
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Institut für Klinische Transfusionsmedizin und Immungenetik Ulm gemeinnützige

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Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Lymphozyten Leukozyten + 3 more
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Institut für Lackprüfung Andreas Keiner

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ISO 2178 ISO 4892-2: 2013-03 UNE-EN ISO 11998 BS EN ISO 16474-3:2021 ISO 6270-1 + 3 more
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Institut für Mikrobiologie der Bundeswehr Zentralbereich Diagnostik

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CalTeC

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DAkkS D-K-18657-01-01 Emmerthal, DE
Kurzschlussstrom 0,5 mA 0,1 V Füllfaktor Solarzellen* 25 % 0,01 mW THD U 0,1 % + 3 more
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Institute for International Product Safety

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Intertek Caleb Brett GERMANY

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DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 ASTM D 86 DIN EN 13016-1 + 3 more
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Intertek Consumer Goods

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IEC 62321-2 DIN EN 61340-4-4 DIN EN 12472 DIN EN 16711-1 DIN EN 1264-5 + 3 more
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Intertek Deutschland

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DAkkS D-PL-12085-01-01 Kaufbeuren, DE
IEC 61000-3-2: 2014 IEC 61000-3-3 IEC 61000-3-11: 2017 IEC 61000-3-12: 2011 IEC 61000-4-2: 2008 + 3 more
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Isserstedt Prüfmaschinen

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

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