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
18 Countries

Showing 1,351–1,375 of 1,670 labs

ENAC LC10.078 Illescas, ES
UNE-EN ISO 868 ASTM D 2240 ISO 48-9 UNE 7050-3 UNE-EN ISO 10360-2 + 3 more
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ENAC LC10.182 Zamudio, ES
UNE-EN 61672-3 UNE-EN 60651 UNE-EN 60804 UNE-EN 61252 (Técnica calibrador acústic UNE-EN 60942 + 3 more
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ACCREDIA 00627 Busto Arsizio, IT
ASTM E 415 21 DIN EN 15266 ASTM D 1329 UNI EN ISO 22391 DIN EN ISO 10140-1 + 3 more
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ACCREDIA 00173 Brugine, IT
ETSI EN 301 489-1: V2.2.3 IEC 62109-1 DIN EN 50178: 1998 IEC 61000-4-16: 2015 IEC 62109-2 + 3 more
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ACCREDIA 00321 Pogliano Milanese, IT
IEC 60335-2-51 DIN EN 60068-2-30 IEC 61000-6-1 IEC 60335-2-54: 2008 DIN EN 50564 + 3 more
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TVS Analysis

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UKAS 2684 Birchwood, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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TYSR Analysis

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UKAS 31733 Chorley, GB
(HSG 248) – 2021 QSOP 01 based on HSG 248
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UKAS 1756 Redhill, GB
ISO 6529 DIN EN 13744 DIN EN 16523-1 EN 16523-2 ASTM F739-12e1( withdrawn) + 3 more
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DAkkS D-K-11048-01-02 Darmstadt, DE
Railway braking — thermal analysis (EN 1 Railway — traction effort and braking fo Railway vehicle dynamics — on-track test Railway brake disc acoustic emissions (E Railway wheel squeal and curve noise (EN + 3 more
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DAkkS D-ML-14063-01-00 München, DE
Staphylokokken Treponema pallidum (Cardiolipin Antikörper) Legionella spp. Salmonellen, Shigellen, Yersinia + 3 more
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DAkkS D-K-22502-01-01 Ilmenau, DE
& 2: 2008 Leuchtdichte L / vom Typ L3 Standard Normfarbwertanteile x , y / LED-basierte Farb- und + 3 more
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ACCREDIA 00754 Verbania, IT
ISO 37 &10 based on HSG 248 BS EN ISO 6509-1:2014 ISO 815-1 ISO 815-2 + 3 more
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Telsy

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ACCREDIA 01747 Orvieto, IT
ETSI EN 319 412 ETSI EN 319 401 ETSI EN 319 411-2 ETSI EN 319 411-1
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DAkkS D-K-18197-01-00 Martinroda, DE
Taupunkttemperatur Railway braking — urban guided transport Widerstandssensor –40 °C bis > 5 °C bis + 3 more
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Teramess

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DAkkS D-K-18666-01-02 Germering, DE
Absolutdruck p 0,015 bar abs > 1,7 bar > 70 bar > 100 bar + 3 more
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TesT

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DAkkS D-K-19475-01-00 Solingen, DE
Kraftaufnehmer und Kraft (WPM) * Vibration measuring instruments — test m maschinen nach DIN Acoustics — tonality assessment (DIN 456 + 3 more
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DAkkS D-K-18316-01-00 Backnang, DE
Gleichspannung 0 mV Messgeräte 10 mV Wechselspannung 0,22 mV > 220 mV > 2,2 V + 3 more
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DAkkS D-K-22318-01-00 Neu Wulmstorf, DE
Positiver Überdruck p e > 70 bar Überdruck p (ein- oder mehrgängige
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DAkkS D-K-15070-01-01 Kirchzarten, DE
- Gleichspannung / Messgeräte Quellen Hochspannung - Gleichstromstärke + 3 more
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UKAS 0805 Ramsdell, GB
RELATIVE HUMIDITY HUMIDITY continued loggers Gas Pressure Gauge Saturated salt capsules + 2 more
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DAkkS D-PL-17169-01-01 Rastatt, DE
DIN EN 60068-2-67 UNE-EN 60068-2-52 IEC/EN 60068-2-38:2009 Part 2-38: ISO 16750-4 DIN EN 60529 + 3 more
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UKAS 0175 London, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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UKAS 1709 London, GB
(HSG 248) – 2021 RPSCA1 based on HSG 248 (PCM) based on HSG 248 RPSCA2 based on HSG 248 BS 7592:2008, BS 8554:2015 + 2 more
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Tetra Tech

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UKAS 6060 Leeds, GB
(HSG 248) – 2021 &10 based on HSG 248 (PCM) based on HSG 248
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DAkkS D-K-17589-01-01 Steinenbronn, DE
Railway brakes — disc brake pads (UIC 54 Volumendurchfluss bzw. 0,01 m Railway pantographs — requirements for m 39 mL/h + 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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