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-ML-18202-01-00 Rüsselsheim, DE
Erythrozytenzahl Hämatokrit Leucozytendifferenzierung Leucozytenzahl MCV + 3 more
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DAkkS D-K-18186-01-00 Bitterfeld-Wolfen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) Innen- und Tiefenmaße Wägewert/ + 3 more
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GRAVICAL

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DAkkS D-K-21136-01-00 Damme, DE
Innen- und Tiefenmaße Konventioneller Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) + 1 more
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DAkkS D-PL-18931-01-01 Hannover, DE
DIN 45645-2
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DAkkS D-K-15106-01-02 Bickenbach, DE
Vickers hardness test (ISO 6507) Kraft Kraftaufnehmer und Sound power — survey method (ISO 3746) 0,2 MN + 3 more
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DAkkS D-K-20936-01-01 Stuttgart, DE
Abgasmessgeräte für motoren Transmissionsfilter Trübungsgrad N Transmission T + 3 more
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DAkkS D-PL-18598-01-02 Essen, DE
DIN 30655-1 DIN 30655-2 DIN 3590-1 DIN 3590-2 DIN 30652-2 + 3 more
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DAkkS D-ML-17457-01-00 Minden, DE
Anti-Müller-Hormon Androstendion CA 125 Cortisol DHEA-S + 3 more
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DAkkS D-ML-22602-01-01 Berlin, DE
Azoospermie (AZF-Mikrodeletionen) Fragiles X-Syndrom (FMR1) Chorea Huntington (HTT) Spinocerebelläre Ataxie Typ1 (ATXN1); Typ 2 (ATXN2); Typ 3 + 3 more
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DAkkS D-ML-13161-04-01 Göttingen, DE
HLA Klasse I Antikörper lymphozytäre Antikörper donorspezifische komplementabhängige
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DAkkS D-ML-18276-01-01 Duisburg, DE
Thrombozytenaggregation Epinephrin-Ristocetin) nach Verschlusszeitbestimmung Kollagen / ADP, PFA-Kollagen Epinephrin, PFA-P2Y) + 3 more
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DAkkS D-PL-11021-01-01 Leipzig, DE
ISO 1920-4 DIN EN 480-11 DIN EN 12350-1 DIN EN 12350-3 DIN EN 12350-6 + 3 more
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DAkkS D-ML-14571-01-00 Brandenburg an der Havel, DE
Aktivator ADP / Epinephrin Thrombozytenfunktionstest Basophile Leukozyten, absolut Basophile Leukozyten Eosinophile Leukozyten + 3 more
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DAkkS D-PL-18520-01-01 Arnstorf, DE
ISO 354 BS EN ISO 717-2:2020 ISO 7171 UNE-EN ISO 3382-2 BS EN ISO 10140-3:2021 + 3 more
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DAkkS D-K-15047-01-00 Türkenfeld, DE
spektrale Mikrofonempfindlichkeit Photodioden 1 µA/W Bestrahlungsstärke + 3 more
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Grohe

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DAkkS D-PL-21413-01-01 Hemer, DE
DIN EN 22248 DIN ISO 1817 IEC 60512-11-11 IEC 60512-11-12 DIN EN ISO 3822-1 + 3 more
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DAkkS D-PL-17291-01-00 Buchen Odenwald, DE
ASTM D3835-16 ASTM D6204-19a ASTM D6601-19 ISO 11443 ASTM D1238-13 + 3 more
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DAkkS D-PL-19908-01-01 Salzbergen, DE
ISO 3105 ASTM D 7042 ISO 2909 ASTM D 5293 ISO 3104 + 3 more
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DAkkS D-K-17638-01-02 Remscheid, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Drehmoment 2 N·m Handbetätigte 20 N·m + 3 more
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HBT

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DAkkS D-PL-18658-01-01 Lünen, DE
DIN 18041 DIN EN 1804-2 DIN EN 1804-3
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DAkkS D-ML-13015-01-01 Wiesbaden, DE
Verschlusszeit (ADP, Epinephrin, P2Y12) HCG, ß-HCG PF4/Heparin-Komplexe induzierte Thrombozytopenie, Test) Differenzialblutbild (maschinell) + 3 more
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DAkkS D-ML-19492-02-00 Krefeld, DE
HCG, ß-HCG Ampicillin Cefipim Hämoglobin A1c (HbA1c) Linecolid + 3 more
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DAkkS D-ML-13211-01-00 Wuppertal, DE
ADP-Antagonisten TRAP-6-Aktivierung ASS-Inhibition Thrombozyten-Funktionsanalyse β-HCG + 3 more
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DAkkS D-K-20425-01-00 Ulm, DE
- Gleichspannung Spannungsmessgeräte > 20 V > 200 V Spannungsquellen + 3 more
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DAkkS D-ML-21826-01-00 Bad Bocklet, DE
Natriumchlorid Glucose Kalium Natrium Albumin + 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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