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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MR COMP

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DAkkS D-PL-13383-01-00 Gelsenkirchen, DE
IEC 62570 DIN 13273-7
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UKAS 1625 Wellingborough, GB
on BS 4401:Part 3:1970(1986) ISO 936:1998 BS ISO 21528-2:2017 BS ISO 16649-2:2001 ISO 6888-1 + 3 more
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MS Testing

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UKAS 4413 Newton Aycliffe, GB
IEC 60068-2-2 BS EN 60945, section 8.2. ISO 13628-6: 2006 IEC 60068-2-1 DIN EN 60068-2-30 + 3 more
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DAkkS D-K-20595-01-00 Kirchheim unter Teck, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Taupunkttemperatur direktanzeigende > 200 °C Widerstandssensor > 300 °C + 3 more
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MSS Consulting

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UKAS 0199 Galdames Place, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004) Appendix 3 of HSG 227 (2004) (HSG 248) – 2021 (PCM) based on HSG 248 + 1 more
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MTS Systems (Germany)

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DAkkS D-K-21976-01-01 Berlin, DE
Kraft (WPM) Vibration measuring instruments — test m nen nach DIN 51220 Länge (WPM) *) Vibration and shock — experimental modal + 3 more
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MVZ (Medizinisches Versorgungszentrum) am Klinikum Passau GmbH Institut für Labor- und Transfusionsmedizin

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Großes Blutbild Kleines Blutbild Erythrozyten Hämoglobin Hämatokrit + 3 more
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MVZ - Medizinisches Versorgungszentrum Mülheim GmbH Nebenbetriebsstätte

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Blutzellen Basophile Granulozyten Basophile Granulozyten, Eosinophile Gran Eosinophile Granulozyten, Erythrozyten, Basophile Leukozyten, absolut + 3 more
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MVZ Clotten Labor Haas, Raif & Kollegen

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MVZ Stein + Kollegen SE & Co. e

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16-Hydroxyestron 17-Hydroxypregnenolon 17-Hydroxyprogesteron 2-Hydroxyestron 2-Methoxyestron + 3 more
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DAkkS D-ML-19676-01-00 Cottbus, DE
Homocystein Katecholamine Vitamin A Vitamin B1 Vitamin B6 + 3 more
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MVZ Labor Bochum MLB

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MN (mononukleare Zellen) Blutbild klein Thrombozyten Hämoglobin Natriumchlorid + 3 more
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Basophile Eosinophile Erythrozyten Hämatokrit Hämoglobin + 3 more
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MVZ Labor Limbach & Kollegen eGbR Standorte: Im Breitspiel 16, 69126 Heidelberg; Im Breitspiel 15, 69126 Heidelberg; Collinistr. 11, 68161 Mannheim

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Hämoglobin 11-Desoxycorticosteron 11-Desoxycortisol 17-Hydroxyprogesteron 17-OH-Pregnenolon + 3 more
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MVZ Labor Quade & Kollegen

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Thrombozytenfunktion Carbamazepin-epoxid Levetiracetam Phenytoin Pregabalin + 3 more
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MVZ Labor Reising-Ackermann und Kollegen

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Hämoglobin, frei Thrombozytenaggregation Thrombozytenfunktion (Verschlusszeit) 3-Methoxytyramin + 3 more
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MVZ Labor Essen Nienkampstraße

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HbA1c Retikulozyten Leukozytendifferenzierung, Leukozyten Blutbild (Hämatokrit, Erythrozyten, Thro Natrium + 3 more
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MVZ Labor Limbach Frankfurt

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DAkkS D-ML-20251-01-01 Wendelstein, DE
HbA1c Amphetamine Barbiturate Benzodiazepine Cannabinoide + 3 more
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MVZ Labor Ludwigsburg SE & Co. e

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Blutgruppenbestimmung Polytoxikologisches Screening, (General 10-OH-Carbamazepin Amiodaron, Desmethylamiodaron Ampicilin + 3 more
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MVZ Labor PD Volkmann und Kollegen SE & Co. e

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Thrombozytenaggregationstest Amisulprid Aripiprazol Benperidol Benzoylecgonin + 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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