ISO 9614-1:2023

Sound Power โ€” 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
๐Ÿ‡ฉ๐Ÿ‡ช DIN EN ISO 9614-2 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN ISO 9614-2 ๐Ÿ‡ซ๐Ÿ‡ท NF EN ISO 9614-2 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN ISO 9614-2 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN ISO 9614-2 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN ISO 9614-2 ๐Ÿ‡ฉ๐Ÿ‡ช DIN EN ISO 3744 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN ISO 3744 ๐Ÿ‡ซ๐Ÿ‡ท NF EN ISO 3744 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN ISO 3744 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN ISO 3744 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN ISO 3744
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COFRAC 1-2241 Douai Cedex, FR
DIN EN ISO 6888-1 DIN EN ISO 21528-2 DIN EN ISO 6888-2 DIN ISO 16649-2 NF V08-054 + 3 more
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COFRAC 1-1830 Nantes, FR
DIN EN ISO 21528-1 NF V08-401 DIN ISO 16649-1 DIN EN ISO 6888-1 DIN EN ISO 21528-2 + 3 more
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COFRAC 1-0965 Marange-Silvange, FR
DIN EN ISO 13395 DIN EN ISO 10304-1 ISO 5815-1 NF T90-015-1 DIN EN ISO 10523 + 3 more
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COFRAC 1-5943 Nantes, FR
NF X 43-269 NF X 43-050 ISO ISO 16000-7
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ACCREDIA 00054 Torino, IT
DIN EN ISO 1135-4 DIN EN 13744 IEC 62623: 2012 DIN EN 13746 Sound Attenuation EN ISO 4869-1:2018 + 3 more
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ENAC LE2439 Elche, ES
ISO 14389 BS EN ISO 14362-1 BS EN ISO 14362-3 UNE-EN ISO 14362-1 UNE-EN ISO 14362-3 + 3 more
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COFRAC 1-7268 Seichamps, FR
DIN ISO 17289 NF T 90-260 NF X 31-615 (Uniquement DIN EN ISO 10523 DIN EN 27888
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DAkkS D-PL-19275-02-01 Obernburg, DE
DIN EN ISO 1135-4 EN ISO 1135-5 DIN EN ISO 10993-1 DIN EN ISO 8637-1 DIN EN ISO 7199 + 2 more
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UKAS 2398 Hull, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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Eckert & Ziegler Nuclitec

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DAkkS D-K-15203-01-01 Braunschweig, DE
Aktivitรคt 20 Bq > 20 Bq Spezifische Aktivitรคt radioaktiver Lรถsungen 20 Bqยทg + 3 more
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UKAS 4507 Huntington, GB
ISO 7171 ISO 1407 BS EN ISO 140-4:1998 BS EN ISO 717-2:2020
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ACCREDIA 01202 Capua, IT
EPA 6020 DIN EN 12457-2 DIN EN 15634-1 EPA 3630 DIN EN 15408 + 3 more
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RvA L470 Bleiswijk, NL
ISO 5660-1 DIN EN 1365-1 EN 13381-4 DIN EN 1634-1 EN 1365-2 + 3 more
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UKAS 10169 Jordanstown, GB
EN 1364-3 DIN EN 1366-4 EN 1364-4 BS 476-21 BS 476-22 + 3 more
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Elektro StruรŸ

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DAkkS D-K-15196-01-01 Nordenham, DE
Gleichspannung 30 mV / Messgerรคte > 0,33 V > 3,3 V > 33 V + 3 more
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Elektro Wilhelm

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DAkkS D-K-20306-01-00 Weinstadt, DE
Taupunkttemperatur fรผr Widerstands- หƒ 500 ยฐC - Direktanzeigende Thermometer Thermoelemente หƒ 500 ยฐC Widerstands- -50 ยฐC + 3 more
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Element Materials Technology Environmental UK

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UKAS 4279 Heaton Mersey, GB
DIN EN 14791 IEC 60519-11 BS ISO 11338-1:2003 DIN EN 13284-1 DIN EN 14385 + 3 more
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Element Materials Technology Environmental UK

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UKAS 4225 Deeside, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 based on BS EN 12457 DIN EN 1948-4 dbSNP rs1800562, rs1799945, rs1800730, r
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UKAS 0170 Heaton Mersey, GB
(HSG 264, 2012) HSG 227 (2004)) (HSG 248) โ€“ 2021 (PCM) based on HSG 248
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Element Materials Technology Sheffield

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UKAS 0136 Rotherham, GB
ISO 3651-2 ASTM A262 Methods A, C & E ISO 7438 ASTM G28-2022 Method A ASTM G48 Method A + 3 more
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UKAS 0621 Wednesbury, GB
DIN EN 1303 DIN EN 12209 DIN EN 14846 BS 3621:2007+A2:2012 BS 8621:2007+A2:2012 + 3 more
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Element Metech

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DAkkS D-K-15020-04-01 Norderstedt, DE
/ Messgerรคte 0,001 V > 0,22 V > 2,2 V > 22 V + 3 more
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Element Metech KDK

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DAkkS D-K-15180-01-01 Wiesloch, DE
Elektrische MessgrรถรŸen Gleichstrom- und NiederfrequenzmessgrรถรŸe Railway brake โ€” magnetic track brakes (U โˆ’ Gleichspannung โˆ’ Gleichstromstรคrke + 3 more
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Elster

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DAkkS D-K-19495-01-01 Mainz-Kastel, DE
Durchfluss von Gasen 0,5 mยณ/h Volumendurchfluss > 4 mยณ/h Railway overhead lines โ€” pantograph head > 10 mยณ/h + 3 more
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RvA L433 Gasselternijveen, NL
BS ISO 11338-1:2003 NEN-ISO 10849 DIN EN ISO 16911-1 IS EN 1948-1:2006 2006 BS ISO 9096:2017 + 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 โ€” Part 2: Measurement by scanning
  • ISO 3744 Determination of sound power levels of noise sources using sound pressure โ€” Precision method in anechoic and hemi-anechoic rooms
  • ISO 9613-1 Attenuation of sound during propagation outdoors โ€” Part 1: Calculation of the absorption of sound by the atmosphere

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