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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AIRGRUP

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ENAC LC10.235 Rinconada, ES
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AIRTHEMIS SUD EST

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COFRAC 1-7447 Venelles, FR
NF X 43-269 ISO NF X 43-257 NF X 43-050 ISO 16000-7
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AISICO

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ACCREDIA 00378 Pereto, IT
DIN EN 1793-5 ASTM E 415 21 DIN EN 14726 DIN EN 1794-1 DIN EN 1794-2 + 3 more
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AISLAMIENTOS BURGALESES

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ENAC LE2073 Burgos, ES
UNE-EN ISO 16283-1 UNE-EN ISO 16283-3 UNE-EN ISO 16283-2
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AKL Messtechnik

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DAkkS D-K-18095-01-00 Karlsfeld, DE
/ Messgeräte 0,001 V > 0,22 V > 2,2 V > 11 V + 3 more
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AKUVIB Engineering and Testing

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DAkkS D-PL-11133-01-01 Bochum, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-3: 2006 VDE 0847 IEC 61000-4-4: 2012 + 3 more
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AL-PRO

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DAkkS D-PL-11316-01-00 Großheide, DE
IEC 61400-12-1 * IEC 61400-12-5 * IEC 61400-50 * IEC 61400-50-1 * IEC 61400-50-2 * + 1 more
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ALAB-Analyse Labor in Berlin

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DAkkS D-PL-18883-01-00 Berlin, DE
DIN ISO 16000-3 DIN ISO 16000-6 DIN EN ISO 16017-1 DIN ISO 12884 EN 16516 + 3 more
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ALS France

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COFRAC 1-1364 Saint-Quentin-Fallavier, FR
DIN EN 14902 DIN ISO 16000-3 DIN EN ISO 16017-1 DIN EN ISO 16017-2 DIN ISO 16000-4 + 3 more
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ALS France – Site de Paris

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COFRAC 1-5578 Villebon-Sur-Yvette, FR
NF T 90-412 0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 DIN EN ISO 16649-3 DIN EN ISO 6888-3 + 3 more
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ALS Germany

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DAkkS D-PL-14162-01-03 Altenberge, DE
DIN EN ISO 15587-1 DIN EN ISO 15587-2 DIN EN ISO 14403-2 DIN 38405-4 DIN 38405-8 + 3 more
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ALS Laboratories (UK)

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UKAS 1282 Templeborough, GB
on BS 4401:Part 3:1970(1986) ISO 12966-2 AM/C/108 based on BS EN ISO BS 684 2.14:2001 BS EN 288-Part 9 :1999 + 3 more
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ALSTOM Transport VPF

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COFRAC 1-5603 Petite-Foret, FR
DIN EN ISO 11546-1 prEN 16185-2 EN 15595 (hors essais au
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ALTER TECHNOLOGY TÜV NORD, S.A. (Unipersonal)

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ENAC LE808 Tres Cantos, ES
IEC 60068-2-1 IEC 60068-2-2 UNE-EN 60068-2-14 UNE-EN 60068-2-78 IEC 60068-2-6 + 3 more
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AMETEK CTS Europe GmbH Kalibrierlabor

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DAkkS D-K-15033-01-00 Berlin, DE
1,5 V/m bis 30 V/m 3 V/m bis 100 V/m 1 GHz bis 8 > 8 GHz bis 18 - Gleichspannung + 3 more
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AMIANT'AIR

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COFRAC 1-6507 Vandoeuvre Les Nancy, FR
NF X 43-269 NF X 43-298 DIN EN ISO 11689 NF X 43-257 NF X 43-050 + 1 more
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ANALY-CO Ile de France

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COFRAC 1-0876 Nanterre, FR
NF X 31-615 DIN EN ISO 7027-2 DIN EN ISO 10523 DIN EN 27888 DIN ISO 17289 + 3 more
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APAVE EXPLOITATION FRANCE

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COFRAC 1-7202 Courbevoie, FR
DIN EN 14385 ETSI EN 301 489-1 V2.2.3 2019-11 NF X43-551 IS EN 1948-1:2006 2006 DIN EN 14789 + 3 more
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APAVE INSPECTION SPAIN

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ENAC LE1878 Madrid, ES
UNE-EN 14584 UNE-EN 13554 UNE-EN 12819 UNE-EN 12817 UNE-EN ISO 15614-1 + 3 more
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APEC Environmental

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UKAS 2136 Hebburn, GB
QOP03 based on HSG 248 QOP01 based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
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APEC Environmental

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UKAS 0347 Hebburn, GB
(HSG 264, 2012)
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APLING ACÚSTICA - INSONORIZACIÓN, S.L. (SOUNDLAB)

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ENAC LE1299 Barcelona, ES
UNE-EN ISO 16283-1 UNE-EN ISO 140-4
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APPLUS METROLOGY, S.L. (Unipersonal)

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ENAC LC10.017 Leganés, ES
CEM DI-002 EURAMET CG-2 CEM DI-014 CEM DI-006 CEM DI-016 + 3 more
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APPLUS NORCONTROL, S.L.(Unipersonal) (APPLUS)

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ENAC LE201 Sada, ES
ISO 6059 ASTM D 1209 UNE-EN ISO 8467 SM 4500-NH D 3 UNE 77048 + 3 more
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AQCLAB SOFTWARE QUALITY, S.L. (AQCLAB)

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ENAC LE2307 Puertollano, ES
ISO/IEC 25010 ISO/IEC 25040 ISO/IEC 25012 ISO/IEC 5259-2
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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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