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

Showing 451–475 of 1,868 labs

DAkkS D-PL-12144-01-01 Altdorf, DE
VDE 0468-2-1 VDE 0468-2-2 VDE 0468-2-6 DIN EN IEC 60068-2-11 DIN EN IEC 60068-2-13 + 3 more
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DAkkS D-K-18994-01-00 Pleidelsheim, DE
optische 0 mm Werkzeugeinstell- und / Messgeräte verwendete Abkürzungen:
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COFRAC 1-7055 Nice, FR
DIN EN ISO 17294-2 DIN EN ISO 7899-1 ISO 5815-1 NF T90-015-1 DIN EN ISO 10523 + 3 more
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ACCREDIA 00160 Bassano del Grappa, IT
EPA 3535 DIN EN ISO 15587-1 NF EN ISO-15587-2 EPA 5030 EPA 6010 + 3 more
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ENAC LE2175 Arroyo de la Encomienda, ES
UNE-EN ISO 16283-1 UNE-EN ISO 16283-3 UNE-EN ISO 16283-2 UNE-EN ISO 3382-1 UNE-EN ISO 3382-2
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ECOSISTEM

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ACCREDIA 00611 Napoli, IT
DIN EN ISO 9308-2 EPA 5035 DIN EN 14789 EPA 5030 DIN EN 14790 + 3 more
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DAkkS D-PL-11061-02-02 Petersberg, DE
DIN 40633-2 DIN 40633-3 DIN 53482 DIN 72551-100 DIN 72551-6 + 3 more
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ACCREDIA 02194 Rivoli Cascine Vica, IT
DIN EN 14790 ISO 5667-5 DIN EN 14181 DIN EN ISO 16911-1 ISO 5667-11 + 3 more
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UKAS 2546 Coventry, GB
BS EN ISO 16283-1:2014+A1:2017BS EN ISO BS EN ISO 16283-2:2020 BS EN ISO 140-4:1998 ISO 1407 BS EN ISO 9972:2015 + 1 more
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UKAS 9982 Waterside Court, GB
and Appx. 3 of HSG 227 (2004)) in Appendix 5 of HSG 227 (2004) guides HSG 264 (2012) and (HSG 264, 2012)
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COFRAC 1-7175 Oullins-Pierre-Bénite, FR
NF ISO 21438-3 NF X 43-264 NF ISO 21438-1 NF X 43-259 NF ISO 21438-2 + 3 more
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COFRAC 1-6388 Saint-Martin D'Heres, FR
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
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COFRAC 1-6491 Bruz, FR
NF X 43-269 - Annexe K NF X 43-050 (parties utiles NF X 46-032 NF X 43-269 – Annexe K NF X 43-050 + 1 more
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ELANOVA LAB

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COFRAC 1-0076 Vitry-Sur-Seine, FR
DIN ISO 1817 DIN EN 15188 DIN ISO 1431-1 DIN EN 14671 DIN EN ISO 10140-2 + 3 more
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DAkkS D-K-15099-01-01 Königslutter am Elm, DE
- Gleichspannung Messgeräte > 0,004 V > 0,33 V > 33 V > 330 V + 3 more
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EMCCons RASEK

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DAkkS D-PL-12067-01-02 Ebermannstadt, DE
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
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EMCCons RASEK

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DAkkS D-K-12067-01-01 Unterleinleiter, DE
- Gleichspannung > 0,12 V Vorverstärker > 1,2 V > 12 V > 120 V + 3 more
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ENAC LE634 Navarrete, ES
UNE-EN 12211 UNE-EN 12210 UNE-EN 1026 UNE-EN 12207 UNE-EN 14608 + 3 more
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ENV Surveys

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UKAS 2794 Brighton, GB
staining based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
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ENAC LE1999 San Sebastián de los Reyes, ES
Environmental noise — determination of s ISO 20906 : 2009-12 :
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EOLIA

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COFRAC 1-2416 La Ciotat, FR
DIN EN 12469 NF S 90-351 NF X 44-201 (Octobre 1984) pour PSM BS EN ISO 14644-1:2015 ISO 14644-3
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DAkkS D-K-21444-01-01 Niederstetten, DE
Railway brake — anti-slide device (UIC 5 Railway brake — magnetic track brakes (U Railway brakes — conditions for homologa Railway brakes — disc brake pads (UIC 54 − Durchfluss von Gasen + 3 more
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EPTA NORD

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ACCREDIA 00253 Conselve, IT
DIN CEN ISO 15216-2 ISO 19250 AOAC 2012.01 2016 DIN EN ISO 15587-1 EPA 300.1 1997 + 3 more
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ENAC LE1450 Basauri, ES
UNE-EN 12350-2 UNE-EN 12504-1 UNE-EN 12390-2 UNE-EN 12390-3 UNE-EN 12350-1 + 3 more
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ENAC LE2757 Madrid, ES
UNE-EN ISO 16283-1 UNE-EN ISO 16283-2 UNE-EN ISO 16283-3 UNE 74201 UNE-EN ISO 3382-2
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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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