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 1,051–1,075 of 1,670 labs

UKAS 1899 Bournemouth, GB
ISO 7251 # = 100 A ISO 6888-3 1) A:2b based on ISO 4833-2:2013 Amd 1:2 2) A:6c based on ISO 21528-1:2017 by mos + 1 more
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ACCREDIA 01676 Biassono, IT
ASTM B212-21 ASTM E1019-24 ASTM B527-24 BS EN ISO 3923-1 ASTM B417-22 + 3 more
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DAkkS D-K-20451-01-00 Bovenden, DE
Konventioneller Wägewert/ Massenormale Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO + 3 more
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DAkkS D-ML-19288-01-00 Stuttgart, DE
Bacillus cereus Toxin Clostridium perfringens Salmonella spp. Shigella spp. Staphylococcus aureus Toxin + 3 more
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ACCREDIA 02288 Roma, IT
ETSI EN 319 412 ETSI EN 319 401 ETSI EN 319 411-2 ETSI EN 319 411-1
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UKAS 0317 Derby, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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DAkkS D-K-15096-01-00 Neuss, DE
Parallelendmaße 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße > 10 mm Parallelendmaße > 100 mm + 3 more
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DAkkS D-K-21161-01-01 Esslingen, DE
Gleichspannung 3 mV Messgeräte 10 mV > 100 mV > 220 mV > 11 V + 3 more
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DAkkS D-PL-12005-01-01 Itzehoe, DE
IEC 61000-4-7 IEC 61000-4-15 IEC 61000-4-30 IEC 61400-21 IEC 61400-21-1 + 3 more
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DAkkS D-K-11292-01-00 Buchen Odenwald, DE
Temperatur 50 °C Railway brake handbooks (UIC 547) 1) In den CMC sind die erweiterten Messu
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DAkkS D-PL-19306-01-00 Oppenweiler, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-3: 2006 VDE 0847-4-3 IEC 61000-4-4: 2012 + 3 more
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DAkkS D-ML-20225-01-00 Minden, DE
Differentialblutbild Kleines Blutbild (maschinell) Thrombozyten Unreife Thrombozyten (IPF) Urinsediment (maschinell) + 3 more
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DAkkS D-PL-22339-02-01 Planegg, DE
DIN EN ISO 717-1 DIN EN ISO 717-2 DIN EN ISO 10140-2 DIN EN ISO 10140-4 DIN EN ISO 10140-5 + 3 more
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DAkkS D-K-14119-01-00 Planegg, DE
Pistonfonen und von Schallkalibratoren Pistonphonen und von (bezogen auf 20 µPa 31,5 Hz bis 16 kHz (bezogen auf 1 V/Pa) + 3 more
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DAkkS D-PL-14119-01-01 Planegg, DE
DIN 4150-1 DIN 4150-2 DIN 4150-3 DIN ISO 8297 DIN EN ISO 12354-4 + 3 more
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DAkkS D-ML-13106-01-01 München, DE
Hämoglobin A1c Hämoglobin-Differenzierung Erythrozyten Basophile Granolozyten Eosinophile Granulozyten + 3 more
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RvA I068 Groningen, NL
NEN 3650 NEN 1059 NEN 3656 NEN 3651 ISO 13480 + 2 more
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NATEC Sensors

Active
DAkkS D-K-15139-01-01 Garching, DE
Railway brakes — conditions for homologa − Durchfluss von Flüssigkeiten Gleichspannung U (Simulation des Signals generators) + 3 more
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ACCREDIA 00846 Olevano sul Tusciano, IT
DIN EN 1186-3 DIN EN 17322 EPA 3535 BS EN 15662 EPA 3015 + 3 more
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ENAC LC10.077 Madrid, ES
2 · 10–6 mol/mol  C  100 · 10–6 mol/mo 0,1 · 10–2 mol/mol < C  2,5 · 10–2 mol/ 1 · 10–6 mol/mol  C  100 · 10–6 mol/mo 5 · 10–6 mol/mol  C  20 · 10–6 mol/mol 0,15 · 10–2 mol/mol  C  20 · 10–2 mol/ + 3 more
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NMi TESTLAB

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DAkkS D-PL-17186-01-01 Blomberg, 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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COFRAC 1-7442 Montbonnot Saint Martin, FR
NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 10304-1 DIN EN ISO 6888-2 NF V08-054 + 3 more
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NORMEC QS

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RvA I248 Ede, NL
NEN-EN 13361 ISO 13362 NEN-EN 13491 DIN EN 13493 NEN-EN 13492 + 3 more
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UKAS 0626 Newport, GB
BS EN ISO 7686:2005 DIN EN 997 DIN EN 13079 DIN ISO 10381-7 DIN EN 14622 + 3 more
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DAkkS D-K-17726-01-00 Pfullingen, DE
Elektrische Feldstärke / 2 V/m 2,5 V/m 1 V/m Magnetische Feldstärke / + 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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