DIN 45680

Low-Frequency Noise Measurement and Assessment

DIN 45680 specifies procedures for measuring and evaluating low-frequency noise (typically 8 Hz to 160 Hz) immissions in buildings and indoor environments. Low-frequency noise from sources such as wind turbines, industrial equipment, traffic, and HVAC systems can cause annoyance and health effects even at sound pressure levels below conventional noise limits. The standard defines frequency-weighted assessment methods, measurement locations, and evaluation criteria specific to low-frequency phenomena. Accreditation for this test method enables laboratories to conduct specialized assessments required for wind energy projects, industrial operations, and building acoustics investigations in sensitive environments.

What it measures

  • Sound pressure levels in the low-frequency range (8–160 Hz)
  • Low-frequency weighted acceleration and vibration metrics
  • Frequency content and tonal characteristics of low-frequency sources
  • Indoor sound field distribution and room resonance effects
  • Infrasound component presence and magnitude
🇩🇪 DIN EN ISO 389-7 🇬🇧 BS EN ISO 389-7 🇫🇷 NF EN ISO 389-7 🇮🇹 UNI EN ISO 389-7 🇪🇸 UNE EN ISO 389-7 🇳🇱 NEN EN ISO 389-7 🇩🇪 DIN EN ISO 226 🇬🇧 BS EN ISO 226 🇫🇷 NF EN ISO 226 🇮🇹 UNI EN ISO 226 🇪🇸 UNE EN ISO 226 🇳🇱 NEN EN ISO 226
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DAkkS D-PL-14358-01-01 Frankfurt (Oder), DE
DIN EN ISO 5667-1 (A 4) DIN 38402-A 11 DIN 38402-A 12 DIN ISO 5667-5 (A 14) DIN EN ISO 5667-6 (A 15) + 3 more
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DAkkS D-ML-13133-01-01 Weißwasser, DE
Abetalipoproteinämie (MTTP) Achondroplasie (FGFR3) Acoeruloplasminämie/Hypocoerulo plasminämie (CP) ACTH-unabhängige makronoduläre + 3 more
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Feinmess Suhl

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DAkkS D-K-15131-01-00 Suhl, DE
Parallelendmaße 0,5 mm bis DIN EN ISO 3650:1999 Messschieber für 0 mm Außen-, Innen- und > 300 mm + 3 more
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DAkkS D-PL-21240-01-00 Lingen (Ems), DE
DIN EN 13725:2003-07 und Berichtigung
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DAkkS D-PL-11164-01-00 Aschheim, DE
DIN 32753-1
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DAkkS D-K-15088-01-00 Köln, DE
flexiblen Akkreditierungsbereich. Beschleunigung * 10 m/s Beschleunigungsaufnehmer Beschleunigungsaufnehmer 10 m/s digital (DTI) + 3 more
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DAkkS D-K-21624-01-01 Riedlingen, DE
Kraft (WPM) Vibration measuring instruments — test m Acoustics — tonality assessment (DIN 456 Härteprüfmaschinen Länge (WPM) + 3 more
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DAkkS D-PL-14116-01-00 Gräfelfing, DE
DIN EN ISO 8497 ISO 8301 ISO 8302 DIN EN 12664 DIN EN 12667 + 3 more
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DAkkS D-ML-21105-01-01 Penzberg, DE
(somatische genetische ACVR1B, AKT1, AKT2, AKT3, ALOX12B, AMER1 GATA3, GATA4, GATA6, GID4, GNA11,GNA13, CHEK2, CHIC2, CHN1, CIC, CIITA IRF8, IRS2, ITK, JAK1, JAK2, JAK3, JARID + 3 more
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DAkkS D-PL-21039-04-04 Erlangen, DE
DIN EN ISO 10304-1 DIN EN ISO 11885 DIN EN ISO 15350 DIN EN ISO 15351 DIN EN ISO 17294-2 + 3 more
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DAkkS D-K-21039-01-00 Erlangen, DE
- Gleichspannung Messgeräte 0,33 V bis < 3,3 V 330 V Quellen > 0,1 V + 3 more
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DAkkS D-K-17452-01-00 Schalkau, DE
Kraft (WPM) 30 N Vibration measuring instruments — test m maschinen nach DIN Kraft * 10 N Acoustics — tonality assessment (DIN 456 + 3 more
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DAkkS D-PL-11140-11-01 Stuttgart, DE
DIN EN ISO 717-1 DIN EN ISO 717-2 DIN EN ISO 10140-1 DIN EN ISO 10140-2 DIN EN ISO 10140-3 + 3 more
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DAkkS D-PL-11140-14-00 Braunschweig, DE
DIN ISO 16000-3 DIN EN ISO 12460-3 DIN EN ISO 12460-4 DIN EN ISO 12460-5 100 HV 120 + 3 more
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DAkkS D-K-11140-02-00 Freiburg, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Kurzschlussstrom Solarmodule 16 mA Gleichstrom- und Nieder- 10 mV + 3 more
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DAkkS D-K-15109-01-01 Titisee-Neustadt, DE
Druck * Absolutdruck Pabs 1 bar; 3 bar Negativer und positiver Überdruck + 3 more
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DAkkS D-PL-14170-01-03 Hamburg, DE
DIN EN 12579 DIN 19698-1 DIN 19698-2 DIN 51750-2 DIN ISO 11277 + 3 more
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DAkkS D-PL-19633-01-00 Dresden, DE
DIN 38402-A 12 DIN EN ISO 5667-6 (A 15) DIN 38402-A 30 DIN EN ISO 5667-13 (S 1) DIN 38414-S 11 + 3 more
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DAkkS D-PL-17559-01-00 Bexbach, DE
DIN EN 50173-1 DIN EN 50173-2 DIN EN 50173-3 DIN EN 50173-4 DIN EN 50173-5 + 3 more
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DAkkS D-PL-17563-01-00 Stuhr, DE
DIN EN 12469 BS 5726-1 DIN 1946-4 DIN EN 12599 DIN 12980 + 1 more
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DAkkS D-PL-11085-01-00 Frankfurt am Main, DE
DIN 51757 DIN EN ISO 12185 DIN EN ISO 3405 DIN EN 13016-1 DIN EN 237 + 3 more
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DAkkS D-K-11243-01-00 Stade, DE
Koordinatenmesstechnik Lasertracker* 0,5 m 1) In den CMC sind die erweiterten Messu Bügelmessschrauben* 0 mm + 3 more
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GMC-I Service

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DAkkS D-K-20313-01-01 Nürnberg, DE
- Gleichspannung Messgeräte > 0,22 V > 2,2 V > 11 V > 22 V + 3 more
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DAkkS D-PL-14479-01-00 Würzburg, DE
DIN EN ISO 5667-1 (A 4) DIN 38402-A 11 DIN 38402-A 12 DIN 38402-A 13 DIN EN ISO 5667-6 (A 15) + 3 more
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DAkkS D-ML-13406-01-00 Rüsselsheim, DE
Erythrozytenzahl Hämatokrit Leucozytendifferenzierung Leucozytenzahl MCV + 3 more
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Industries

Renewable energy (wind turbine) development and operation Industrial noise and vibration control Building acoustics and occupant protection Environmental health and public protection Regulatory compliance and permit assessment

Related Standards

  • DIN 45681 Acoustics — Tonality assessment
  • ISO 389-7 Acoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under free and diffuse sound field conditions
  • ISO 226 Acoustics — Normal equal-loudness-level contours

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