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
20 Countries

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DAkkS D-PL-22057-01-01 Ludwigsburg, DE
DIN EN ISO 4210-1 DIN EN ISO 11243 ISO 5775-1 DIN EN 16054 DIN EN 1371-1 + 3 more
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DAkkS D-ML-13013-01-00 Chemnitz, DE
Thrombozytenfunktion Ristocetin) Thrombozytenaggregation Arachidonsäure, Epinephrin, Kollagen, Ri 17-alpha-Hydroxy-Progesteron + 3 more
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DAkkS D-ML-13117-01-00 Regensburg, DE
angeborener Chromosomensatz 22q11.2-Mikrodeletionssyndrom (22q11.2) Kopienzahlveränderungen (Regionen laut MLPA-Kit) + 3 more
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DAkkS D-K-15186-01-01 Bitterfeld-Wolfen, DE
- Gleichspannung Railway vehicles — specific test require Quellen - Gleichstromstärke / Messgeräte + 3 more
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DAkkS D-K-15186-01-02 Bitterfeld-Wolfen, DE
Masse oder Konventioneller Wägewert/ Massenormale* Massenormale* > 100 g + 3 more
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DAkkS D-ML-13153-01-00 Jena, DE
Angelmann-Syndrom (15q11-q13 Region) Prader-Willi-Syndrom (15q11-q13 Ausschluss/ Nachweis mütterlicher Zellen im pränatalen + 3 more
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DAkkS D-K-18080-01-00 Friedrichshafen, DE
Parallelendmaße 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße * 0,5 mm Parallelendmaße Parallelendmaße > 100 mm + 3 more
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DAkkS D-K-19937-01-02 Losheim am See, DE
Railway brake — anti-slide device (UIC 5 Messgeräte im Kraftfahrwesen − Rollenbremsprüfstände − Plattenbremsprüfstände − Scheinwerfer-Einstell-Prüfsystem + 3 more
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ZwickRoell

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DAkkS D-K-18351-01-00 Ulm, DE
Absolutdruck p * Kraftmesseinrichtungen von Werkstoffprüfmaschinen Acoustics — tonality assessment (DIN 456 Auflagekraft von Fallmassen + 3 more
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DAkkS D-ML-13280-01-00 Hamburg, DE
Thombozyten-Funktionstest 10-OH-Carbazepin 11-Deoxycorticosteron 11-Deoxycortisol 21-Deoxycortisol + 3 more
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DAkkS D-ML-13432-01-00 Würzburg, DE
Automatisches Blutbild Erythrozytenzahl Hämatokrit Hämoglobin Hb im einzelnen Erythrozyten + 3 more
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DAkkS D-ML-13131-02-01 Hannover, DE
HbA1c Basophile Eosinophile Basophile Granulozyten Lymphozyten + 3 more
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DAkkS D-ML-13131-01-01 Göttingen, DE
Homovanillinsäure Vanillin-Mandelsäure 5-Hydroxyindolessigsäure VLCFA Phytansäure + 3 more
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DAkkS D-ML-20928-01-01 Jena, DE
Albumin Alkalische Phosphatase Alpha-Amylase AT3 Bilirubin, direkt + 3 more
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DAkkS D-ML-13318-01-00 Halle (Saale), DE
HbA1c CDT Vitamin B1 Vitamin B6 Vitamin A + 3 more
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DAkkS D-ML-18746-01-01 Fürstenfeldbruck, DE
HbA1c Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Hämoglobin + 3 more
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DAkkS D-ML-20700-01-00 Hamburg, DE
Thombozyten-Funktionstest 10-OH-Carbazepin 11-Deoxycorticosteron 11-Deoxycortisol 21-Deoxycortisol + 3 more
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DAkkS D-PL-17580-01-00 Reppenstedt, DE
IEC 61400-1 * IEC 61400-12-1 Ed. 2.0 * IEC 61400-12-1 * IEC 61400-50 * IEC 61400-50-1 * + 2 more
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bactologicum

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DAkkS D-PL-22114-01-01 Hamburg, DE
DIN EN 1040 DIN EN 1275 2006-03 IEC 60127-6 DIN EN 12791 2018-01 DIN EN 13624 2022-08 + 3 more
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DAkkS D-ML-13188-01-01 Limburg a. d. Lahn- Eschhofen, DE
Lysozym = Sexualhormon bindendes Prolaktin Freies Thyroxin 4 (FT4) Beta-Defensin 2 + 3 more
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DAkkS D-PL-19426-01-00 Dresden, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN EN 61400-11
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DAkkS D-PL-12047-01-01 Saarbrücken, DE
ISO 7637-1 ISO 7637-2 ISO 7637-3: 2016 ISO 10605 ISO 11452-2: 2019 + 3 more
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dEnergy

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DAkkS D-PL-23069-01-01 Berlin, DE
ISO 9613-02
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DAkkS D-PL-18963-01-00 Odenthal, DE
DIN 45645-2
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DAkkS D-PL-20051-01-01 Köln, DE
DIN ISO 16000-3 DIN ISO 16000-6 DIN EN ISO 16000-9 DIN EN ISO 16000-10 DIN EN ISO 16000-11 + 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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