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
1,868 Accredited labs
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DAkkS D-ML-13304-08-01 Marburg, DE
Borrelia burgdorferi Chlamydophila pneumoniae Coxiella burnetii Toxoplasma gondii Adenovirus + 3 more
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DAkkS D-ML-13217-01-00 Halle (Saale), DE
Blutgruppe AB0 Rh-Faktor Rh-Formel Kell-Ag A-Untergruppe + 3 more
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DAkkS D-ML-13217-02-00 Halle (Saale), DE
Toxoplasmen-IgG Treponema pallidum-IgG anti-HBc AK anti-HBs AK anti-CMV IgG + 3 more
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DAkkS D-ML-13217-04-00 Halle (Saale), DE
DPYD (SNP-Analyse) JAK2 Kodon 617 Mutationsanalyse T-Zellklonalitätsanalyse (TCRG und TCRB) B-Zellklonalitätsanalyse (IGH, IGL, IGK) + 3 more
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DAkkS D-ML-13278-01-01 Hamburg, DE
Aminosäuren Second Tier Test IVA Screening (C5 -Carnitin Isobaren) 17-α-OH-Progesteron (17-OH-P) Biotinidase + 3 more
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DAkkS D-ML-13278-09-00 Hamburg, DE
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DAkkS D-ML-13278-03-00 Hamburg, DE
Factor) Treponema pallidum-Antikörper Treponema pallidum (TPHA) Treponema pallidium (VDRL) Escherichia coli Serotyp + 3 more
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DAkkS D-ML-13278-07-00 Hamburg, DE
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DAkkS D-ML-13278-02-00 Hamburg, DE
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TSH 17-Hydroxyprogesteron IRT PAP GALT + 3 more
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DAkkS D-ML-13060-04-00 Heidelberg, DE
Zellzahlbestimmung, CD3+, CD4+, CD8+, CD fixpunktzellen Phänotypisierung von Leukozyten C3d Faktor H + 3 more
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DAkkS D-ML-13060-03-00 Heidelberg, DE
Fragiles X-Syndrom, primäre Tremor-Ataxie-Syndrom (FMR1 Parietalzellen/Magen) Glutarazidurie Typ 1 (GCDH -Gen) Dehydrogenase-Mangel (ACADM + 3 more
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DAkkS D-ML-13060-01-00 Heidelberg, DE
Acetominophen Albumin Alkohol ALP Alpha 2-Antiplasmin + 3 more
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DAkkS D-ML-13060-09-00 Heidelberg, DE
Salmonella spp. Shigella spp. Staphylococcus spp. Yersinia spp. Actinomyces spp. + 3 more
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DAkkS D-ML-13144-05-00 Jena, DE
Angelmann-Syndrom (15q11-q13 Region) Prader-Willi-Syndrom (15q11-q13 Ausschluss/ Nachweis mütterlicher Zellen im pränatalen + 3 more
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DAkkS D-ML-13144-04-00 Jena, DE
Cryptococcus neoformans, Antikörper Pneumokokken Salmonellen Shigella spp. Staphylococcus aureus + 3 more
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DAkkS D-ML-13144-06-00 Jena, DE
AB0-System A-Untergruppe Rhesusfaktor Antigen-D im indirekten Direkter Coombstest + 3 more
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DAkkS D-ML-13144-07-01 Jena, DE
Impedanzaggregometrie (Induktoren: ADP, TRAP, Arachidonsäure, RIPA-Test Thrombozytenfunktionstest Organische Säuren + 3 more
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DAkkS D-ML-13253-04-00 Köln, DE
Liste aller Untersuchungsverfahren Webpräsenz des Medizinischen Laboratoriu Adrenalin Dopamin Noradrenalin + 3 more
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DAkkS D-ML-13253-03-01 Köln, DE
Cryptococcus-neoformans-Antigen Plasmodium spp. Aerobe und fakultativ anaerobe aerob wachsende Bakterien schnellwachsende Bakterien + 3 more
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DAkkS D-ML-13253-02-00 Köln, DE
Toxoplasma gondii IgG-Antikörper Toxoplasma gondii IgM-Antikörper Treponema pallidum (Syphilis) Thrombozytäre Antikörper Hanta Puumala IgM Antikörper + 3 more
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DAkkS D-ML-13253-07-00 Köln, DE
B-Zellzahl (Immunstatus T-Non-Hodgkin-Lymphome Akute myeloische Leukämie Akute lymphatische Leukämie Multiples Myelom (Plasmazellen) + 3 more
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DAkkS D-ML-13253-01-00 Köln, DE
Treponema pallidum (Lues-AK) HIV -AK HCV-AK HBs-AG HBc-Ak + 3 more
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DAkkS D-ML-13253-06-00 Köln, DE
Familiärer Brust- und Eierstockkrebs (TruRiskTM-PANEL ; folgende Gene werden ausgewertet und befundet: ATM, BARD1, BRCA1, BRCA2, BRIP1,CDH1, CH komplette Genanalyse, Prädiktive + 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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