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 276–300 of 1,868 labs

COFRAC 1-7313 Fretin, FR
NF X 43-269 NF X 43-050 NF X43-050 (2021)* (parties
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COFRAC 1-1695 Cestas, FR
DIN EN 13486 IEC ISO 1496-2 – Conteneurs DIN EN 16440-1
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COFRAC 1-1861 Rungis, FR
DIN EN 12390-6 DIN EN 196-2 DIN EN 62196-1: 2015 DIN EN 12390-3 ISO 13320 + 3 more
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COFRAC 1-0301 Marne La Vallee Cedex 2, FR
NF P 92-501 NF P92-512 EN 13823 EN ISO 1716 NF P 92-504 + 3 more
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COFRAC 1-0552 Grenoble Cedex 09, FR
BS EN ISO 1924-2:2008 DIN EN ISO 1974 DIN EN 12758 BS EN ISO 12625-4:2022 ISO 535 + 3 more
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ACCREDIA 00172 Ancona, IT
DIN EN 1186-3 DIN EN ISO 7730 DIN EN 12457-2 DIN EN ISO 6888-1 DIN EN ISO 7393-2 + 3 more
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ENAC LE1385 Beasain, ES
DIN EN 13260 DIN EN 13261 DIN EN 13262 Railway end stop systems (EN 14752) Railway vehicle body structural requirem + 3 more
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ENAC LE149 Móstoles, ES
UNE-EN 60567 IEC 60814 UNE-EN 61198 IEC 60247 UNE-EN 61619 + 3 more
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ENAC LE1154 Boecillo, ES
UNE-EN ISO 16283-1 UNE-EN ISO 16283-2 UNE-EN ISO 16283-3 UNE-EN ISO 3382-2
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ENAC LE471 Madrid, ES
OM H-3 based on ISO 9698:2019 ISO 13164-4 SM 3111 UNE-EN ISO 13160 ISO 10704 + 3 more
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ENAC LE2543 Santa Cruz de Tenerife, ES
UNE-EN ISO 5667-19 UNE-EN ISO 16665 UNE-EN 19493
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ENAC LE1355 Carreño, ES
SM 2510 B SM 4500 H+ UNE 7027-1 UNE 7887 SM 4500-NO B 2 + 3 more
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ENAC LE2151 Sevilla, ES
UNE-EN 136 UNE-EN 148-1 UNE-EN 140 UNE-EN 149 UNE-EN 13274-7 + 3 more
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ACCREDIA 00029 Busto Arsizio, IT
ISO 11423-1 DIN EN ISO 10523 BS EN ISO 17294-2 DIN EN ISO 15587-2 DIN EN ISO 7887 + 3 more
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COFRAC 1-0979 Bobigny, FR
NF X 31-615 (Uniquement NF X 43-257 NF X 43-259 DIN EN 27888 DIN EN ISO 10523 + 3 more
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COFRAC 1-1209 Garons, FR
DIN EN 1988-1 DIN EN ISO 17294-2 NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 10304-1 + 3 more
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COFRAC 1-0894 Lieu Saint-Amand, FR
NF V 04-407 NF T 90-412 DIN EN ISO 6888-1 NF V04-403 NF V04-408 + 3 more
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COFRAC 1-5710 Saint-Quentin, FR
NF EN 12802 (inventaire ISO 2811-1 NF T 30-012 DIN EN 15182-4 DIN 51436 + 3 more
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COFRAC 1-5697 Aix-En-Provence, FR
DIN EN 12593 DIN EN 1097-4 DIN EN 933-1 DIN EN 12607-1 DIN EN 1427 + 3 more
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COFRAC 1-5706 Toulouse, FR
DIN EN 12390-6 DIN EN 62196-1: 2015 DIN EN 12390-3 NF P 98-532 NF P 98-533 + 3 more
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CERIB

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COFRAC 1-0001 Epernon, FR
ISO 8302 DIN EN 12664 DIN EN 12667 DIN EN 16272-5 DIN EN 1793-5 + 3 more
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DAkkS D-PL-11312-01-00 Nürnberg, DE
DIN EN 16334 EN 50128 EN 50129 DIN EN 50215 EN 50657 + 3 more
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ACCREDIA 00719 Longarone, IT
ISO 17234-1 ISO 4045 EPA 8270 ISO 17234-2 DIN EN ISO 17075-1 + 3 more
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UKAS 2338 Burton-upon-Trent, GB
DIN EN 13284-1 BS ISO 9096:2017 requirements of BS EN 15259:2007 Standard and BS EN 15259:2007 DIN EN ISO 16911-1 + 3 more
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CESI

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ACCREDIA 00026 Milano, IT
DIN EN 62053-23: 2017-09 DIN IEC 62067 DIN EN 62271-102 DIN EN 60079-11 DIN EN 62271-103 + 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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