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
1,670 Accredited labs
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1A CAL

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DAkkS D-K-15115-01-00 Kassel, DE
- Gleichspannung Josephson-Josephson Multimeter Quellen > 0,2 V Spannungsnormale + 3 more
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3-Rath Kalibrier+Prüftechnik

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DAkkS D-K-15158-01-00 Haiger, DE
Sound intensity — scanning method (ISO 9 Härteprüfmaschinen Knoop- und 70 HR15N 42 HR30N + 3 more
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3D Service

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DAkkS D-K-18164-01-01 Partenstein, DE
Münchingen, D CAM 2, Software von Holos, Software von Carl Metrologic, Software von Metrologic Group ≤ 9090 mm + 3 more
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8tree GmbH 8tree Calibration Lab

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DAkkS D-K-21981-01-00 Konstanz, DE
8tree Scanner / 0 mm bis 100 mm Laterale Größe von Tiefenmaß/ -unterstand (Härteskalen HV0,01
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A.S.T. - Angewandte System Technik GmbH, Mess- und Regeltechnik

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DAkkS D-K-17303-01-01 Dresden, DE
Kraft 0,5 N Zug- und Druckkraft Vibration measuring instruments — requir Sound power — in-situ using reference so 20 kN + 3 more
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ABB AG Kalibrierlaboratorium für Druck, Durchfluss und Temperatur

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DAkkS D-K-12115-01-00 Minden, DE
Absolutdruck p abs positiver Überdruck Positiver Überdruck p e Überdruck p + 3 more
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ABIT Ingenieure Trautmann

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DAkkS D-PL-14560-01-00 Teltow, DE
DIN ISO 8297 DIN 45645-1 DIN 45645-2 DIN 45680 Beiblatt 1 ISO 11338-2 + 2 more
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ABIT Ingenieure Trautmann

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DAkkS D-PL-14560-01-02 Potsdam, DE
BS EN ISO 16283-1:2014+A1:2017BS EN ISO ISO 10052 BS EN ISO 16283-2:2020 DIN EN ISO 16283-3 DIN 4109-4
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AIP

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DAkkS D-K-21076-01-01 Haldenwang, DE
Railway brake — anti-slide device (UIC 5 Railway brake — magnetic track brakes (U Railway brakes — conditions for homologa Messgeräte im Kraftfahrwesen − Abgasmessgeräte für Fremdzündungsmotor + 3 more
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AKL Messtechnik

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DAkkS D-K-18095-01-00 Karlsfeld, DE
/ Messgeräte 0,001 V > 0,22 V > 2,2 V > 11 V + 3 more
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AKUVIB Engineering and Testing

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DAkkS D-PL-11133-01-01 Bochum, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-3: 2006 VDE 0847 IEC 61000-4-4: 2012 + 3 more
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AL-PRO

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DAkkS D-PL-11316-01-00 Großheide, DE
IEC 61400-12-1 * IEC 61400-12-5 * IEC 61400-50 * IEC 61400-50-1 * IEC 61400-50-2 * + 1 more
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ALAB-Analyse Labor in Berlin

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DAkkS D-PL-18883-01-00 Berlin, DE
DIN ISO 16000-3 DIN ISO 16000-6 DIN EN ISO 16017-1 DIN ISO 12884 EN 16516 + 3 more
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ALS Germany

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DAkkS D-PL-14162-01-03 Altenberge, DE
DIN EN ISO 15587-1 DIN EN ISO 15587-2 DIN EN ISO 14403-2 DIN 38405-4 DIN 38405-8 + 3 more
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AMETEK CTS Europe GmbH Kalibrierlabor

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DAkkS D-K-15033-01-00 Berlin, DE
1,5 V/m bis 30 V/m 3 V/m bis 100 V/m 1 GHz bis 8 > 8 GHz bis 18 - Gleichspannung + 3 more
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AQRAT

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DAkkS D-K-15060-01-00 Dettingen unter Teck, DE
Messschieber für 0 mm Außen-, Innen- und > 500 mm > 1000 mm Tiefenmessschieber * 0 mm Sondermessschieber 0 mm + 3 more
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Ahlborn Meß- und Regelungstechnik

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DAkkS D-K-19342-01-02 Holzkirchen, DE
Taupunkttemperatur Railway braking — urban guided transport Temperaturtransmitter Widerstandssensor *) –30 °C + 3 more
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Airbus Defence and Space

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DAkkS D-K-18731-01-01 Manching, DE
- Gleichspannung / Messgeräte 1 µV Quellen > 1 V + 3 more
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Akustikberatung Wiemers

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DAkkS D-PL-11244-01-01 Berlin, DE
EN 14033-3 ISO 9611 ISO 11201
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Akustikbüro Dahms

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DAkkS D-PL-20065-01-00 Potsdam, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN EN 61400-11
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Akustikbüro Göttingen - Alphei Püschel Rösler

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DAkkS D-PL-18995-01-00 Göttingen, DE
DIN 45645-2
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Akustikbüro K5

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DAkkS D-PL-20822-01-00 Berlin, DE
DIN EN IEC 60268-16 DIN VDE 0833-4
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Akustikbüro Krämer & Stegmaier

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DAkkS D-PL-11344-01-01 Berlin, DE
ISO 23351-1 ASTM E 1354 DIN EN ISO 717-1 DIN EN ISO 717-2 DIN EN ISO 3382-1 + 3 more
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Allgäuer Messzentrum

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DAkkS D-K-19562-01-01 Kaufbeuren, DE
Durchmesser 1 mm 510 mm Rundheitsabweichung 1 mm Parallelitätsabweichung Rundheitsabweichung + 3 more
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Ambulanzzentrum des UKE GmbH Fachbereich Labormedizin

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DAkkS D-ML-19804-01-00 Hamburg, DE
Cyclosporin A Everolimus FK 506 (Tacrolimus) Sirolimus 6-Methylmercaptopurin + 3 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 — 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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