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
1,868 Accredited labs
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DAkkS D-K-19566-01-00 Hilden, DE
Druck * > –0,12 bar bis negativer und positiver Überdruck p e > –0,01 bar bis > 0,03 bar bis + 3 more
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CEcert

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DAkkS D-PL-12049-01-02 Wismar, DE
IEC 61000-4-2: 2008 EN IEC 61000-4 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 + 3 more
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DAkkS D-ML-21581-01-00 Berlin, DE
Thrombozytenaggregationstest Blutbild mit Vordifferenzierung Calcium Natriumchlorid Kalium + 3 more
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DAkkS D-K-19708-01-00 Paderborn, DE
- Gleichspannung Quellen > 0,10 V > 1 V > 10 V - Gleichstromstärke + 3 more
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DAkkS D-PL-12030-01-02 Plattling, DE
DIN EN 55016-2 VDE 0877-16-2-1 VDE 0877-16-2-2 VDE 0877-16-2-3 EN IEC 61000-4 + 3 more
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DAkkS D-ML-13325-01-00 Cottbus, DE
Oligosaccharide Chromatographie (Gaschromatograpie Cannabinoide (THC-COOH) Amphetamine Opiate + 3 more
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Carl Zeiss

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DAkkS D-PL-12125-01-01 Oberkochen, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 60601-1-1 IEC 60601-1-1 IEC 80601-2-77 + 3 more
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DAkkS D-K-21703-01-00 Oberkochen, DE
Carl Zeiss Industrielle ≤ 3818 mm Oberkochen, D 1) In den CMC sind die erweiterten Messu Carl Zeiss Industrielle ≤ 20 m Auswertesoftware Messvolumen mit + 3 more
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DAkkS D-K-15007-01-01 Oberkochen, DE
Parallelendmaße 50 mm DIN EN ISO 3650:1999 Thermischer Ausdeh- Maximale Dimension Bandbreite Höhe: 80 mm + 3 more
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DAkkS D-PL-12037-01-02 Jena, DE
DIN EN 61010-1 VDE 0411-1 IEC 61010-1 : 2010 DIN EN 60825-1 VDE 0837 + 3 more
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DAkkS D-K-12037-01-01 Jena, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße * 40 mm Parallelendmaße * ≥ 100 mm Strichmaßstäbe 0 mm + 3 more
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CeGaT

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DAkkS D-ML-13206-01-01 Tübingen, DE
angeborener Chromosomensatz (Imbalancen im Genom, (Duplikationen/Del SNRPN-Region 15q11-13 UPD15 (UBE3A) SMN1; Spinale Muskelatrophie + 3 more
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Cenata

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DAkkS D-ML-21205-01-01 Tübingen, DE
Pränatales Screening auf Chromosomenstörungen (Trisomie 21, Trisomie 18, Trisomie 13, X0, XXX, XXY, XYY, XXYY, 22q11 (DiGe
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DAkkS D-ML-13008-09-01 Berlin, DE
Whole genome sequencing (WGS: SNV, CNV/SV)
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DAkkS D-ML-13008-01-00 Berlin, DE
Thyreoidea stimulierendes (TSH) 17-α-OH-Progesteron (17-OH-P) Immunreaktives Trypsin + 3 more
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CheckImmune

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DAkkS D-ML-21360-01-00 Berlin, DE
Leukozytenzahl B-Zellzahl (Immunstatus Rezeptor-Besatz HLA-DR Leukozytensubpopulationen + 3 more
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DAkkS D-PL-14010-01-04 Bensheim, DE
DIN 38402-A 13 DIN ISO 5667-5 (A 14) DIN 38402-A 30 DIN 19643-1 ISO 5667-11 + 3 more
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Coesfeld

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DAkkS D-K-15093-01-00 Dortmund, DE
Kraft (WPM) Belastungseinrichtungen von Werkstoffprüfmaschinen Länge (WPM) 0,5 mm messeinrichtungen von + 3 more
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DAkkS D-K-17132-01-00 Elsenfeld, DE
Messgeräte 0,001 V > 0,22 V > 2,2 V > 11 V > 22 V + 3 more
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DAkkS D-PL-14097-03-00 Dormagen, DE
DIN EN ISO 5136 DIN EN ISO 12354-4 DIN 45635-1 DIN 45635-14 DIN 45635-38 + 3 more
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DAkkS D-K-11081-02-01 Chemnitz, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 auch Vor-Ort Kalibrierung bahntypischer –0,26 mm + 3 more
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DAkkS D-PL-11072-01-01 Freiberg, DE
DIN EN ISO 9012 ISO 22967 ISO 22968 (SPG42), SPAST (SPG4), SPG11, SPG7, VAMP DIN EN 30-1-1 + 3 more
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DAkkS D-K-17567-01-01 Lauf a. d. Pegnitz, DE
(ein- und mehrgängige zylindrische Außen- und metrischem Profil) Außengewinde Nenndurchmesser Flankendurchmesser 1 mm + 3 more
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DAkkS D-PL-11060-03-05 Stuttgart, DE
DIN EN ISO 5667-3 DIN EN ISO 15587-2 DIN EN 12457-4 DIN EN 13346 DIN EN 13657 + 3 more
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DAkkS D-PL-17438-01-04 Stuttgart, DE
IEC 60335-1: 2010 IEC 60335-2-2 IEC 60335-2-3 DIN EN 60335-2-3: 2002 IEC 60335-2-4 + 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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