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
🇧🇪 NBN EN ISO 9614-2 🇩🇪 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 🇧🇪 NBN EN ISO 3744 🇩🇪 DIN EN ISO 3744 🇬🇧 BS EN ISO 3744 🇫🇷 NF EN ISO 3744 🇮🇹 UNI EN ISO 3744
3,940 Accredited labs
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DAkkS D-K-15115-01-01 Kassel, DE
Gleichstrom- und Niederfrequenzmessgröße - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand - Wechselspannung + 3 more
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UKAS 23262 London, GB
Whole Blood Full blood count | 520 Whole Blood Full blood count | SOP LAB 1 A, B, O, Rh (D) | SOP LAB 11 Blood Phlebotomy | SOP LAB 03 Biochemistry examination activities | Ro + 3 more
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DAkkS D-K-15158-01-00 Haiger, DE
Sound intensity — scanning method (ISO 9 Hand-arm vibration — measurement (ISO 53 Railway testing reference handbook part messeinrichtungen von Pendelschlagwerke und + 3 more
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ACCREDIA 00850 Padova, IT
DIN EN 20105 ISO 18787 ISO 4832 ISO 15214 ISO 21527-1 + 3 more
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DAkkS D-K-18164-01-01 Partenstein, DE
Railway braking — adhesion under braking Koordinatenmessgeräte geräte mit einem DEA Hexagon Metrology Polyworks, Software von Metrologic, Software von + 3 more
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BELAC 772-TEST Bruxelles, BE
IEC 61400-50-1 IEC 61400-50-2 MEASNET “Evaluation of si
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UKAS 0173 London, GB
(HSG 264, 2012)
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UKAS 1931 London, GB
BS 7976-2 (HSG 248) – 2021 (PCM) based on HSG 248 E203 based on HSG 248 E200 based on HSG 248 + 1 more
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DAkkS D-K-21981-01-00 Konstanz, DE
(Härteskalen HV0,01 8tree Scanner / 0 mm bis 100 mm Laterale Größe von Tiefenmaß/ -unterstand + 2 more
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ACCREDIA 01705 Ferrazzano, IT
DIN EN 14346 ISO 23695 UNI EN 14346
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ACCREDIA 02091 Livorno, IT
DIN EN 14346 DIN EN ISO 17294-2 DIN EN 12457-2 DIN EN ISO 54321 ISO 11731 + 3 more
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COFRAC 1-5950 Vannes, FR
NF X 43-050 ISO 16000-7 FD T 90-522 FD X 46-033
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ACCREDIA 01754 Bassano del Grappa, IT
DIN EN 12472 DIN EN ISO 2819 ASTM E 1613-12: ISO 2409 ISO 2819 + 3 more
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ACCREDIA 00007 Vigevano, IT
DIN EN ISO 659 DIN EN ISO 10863 DIN ISO 1817 ISO 37 DIN EN ISO 3741 + 3 more
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A.Q.C. SRL

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ACCREDIA 00925 Napoli, IT
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO DIN EN ISO 7438 DIN EN ISO 4136 + 3 more
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A.R. Chem

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ACCREDIA 01628 Longare, IT
DIN EN 27888 DIN EN ISO 11885 DIN EN 13657 DIN EN ISO 10523 DIN EN 14346 + 3 more
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ACCREDIA 01374 Cassano Magnago, IT
DIN EN 27888 DIN EN ISO 11885 DIN EN ISO 10523 DIN EN 26777 DIN EN ISO 10304-1 + 3 more
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DAkkS D-K-17303-01-01 Dresden, DE
Sound power — in-situ using reference so Vibration measuring instruments — requir 100 kN 20 kN 50 kN + 3 more
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ACCREDIA 01756 Quarto D'Altino, IT
DIN EN 27888 DIN EN ISO 11885 DIN EN ISO 15587-2 DIN EN 13657 NF EN ISO-15587-2 + 3 more
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DAkkS D-PL-14087-01-03 Plauen, DE
DIN EN ISO 2719 DIN EN 12879 DIN EN 12880 DIN EN ISO 19458 DIN EN 932-1 + 3 more
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ENAC LC10.160 San Fernando de Henares, ES
-95 kPa ≤ P < -1 kPa -1 kPa ≤ P < -100 P 5 kPa ≤ P < 80 kPa 80 kPa ≤ P ≤ 120 kPa 0 MPa ≤ P ≤ 2 MPa 2 MPa < P ≤ 20 MPa 20 Punto triple del agua (0,01 °C) Punto de fusión del hielo (0,00 °C) -80 + 3 more
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ACCREDIA 01198 Lacchiarella, IT
DIN EN ISO 11885 DIN EN 15408 DIN EN 13657 DIN EN ISO 10304-1 DIN EN 1484 + 3 more
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COFRAC 1-7214 Florange, FR
DIN ISO 16000-4 DIN EN ISO 16017-2 NF X 43-257 NF X 43-267 NF X 43-269 + 3 more
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ENAC LE2884 Madrid, ES
UNE 26494
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ENAC LE2968 Palmera, ES
UNE-EN ISO 16283-1 UNE-EN ISO 16283-2 UNE-EN ISO 16283-3
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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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