DIN 45681

Acoustics Tonality Assessment for Noise Annoyance

DIN 45681 establishes methods for detecting and assessing the tonal audibility of noise immissions, which is essential for determining noise annoyance potential and regulatory compliance. Tonal noise components (pure tones or narrow-band frequencies) are perceived as more annoying than broadband noise at equivalent sound pressure levels, making tonality assessment critical for environmental noise evaluation. The standard defines objective procedures to quantify tonality and adjust noise exposure assessments accordingly. Accreditation for this test method enables laboratories to conduct accurate environmental noise impact assessments, particularly for industrial operations, mechanical systems, and wind energy projects where tonal characteristics significantly influence regulatory requirements and resident protection.

What it measures

  • Presence and audibility of tonal components in noise
  • Frequency and sound pressure level of pure tones
  • Prominence of tonal components relative to background noise
  • Tonality-adjusted noise rating and regulatory impact
  • Narrow-band spectral analysis and tone identification
🇩🇪 DIN EN ISO 1996-1 🇬🇧 BS EN ISO 1996-1 🇫🇷 NF EN ISO 1996-1 🇮🇹 UNI EN ISO 1996-1 🇪🇸 UNE EN ISO 1996-1 🇳🇱 NEN EN ISO 1996-1
1,868 Accredited labs
20 Countries

Showing 1,676–1,700 of 1,868 labs

DAkkS D-ML-13304-08-01 Marburg, DE
Borrelia burgdorferi Chlamydophila pneumoniae Coxiella burnetii Toxoplasma gondii Adenovirus + 3 more
View Profile
DAkkS D-ML-13304-10-00 Marburg, DE
Syndrom, Gene: AKT1, PIK3CA, PTEN, SEC23B Carney-Komplex, Gene: PRKAR1A, OMIM*600993, STK11 Cowden-Syndrom, Gene: AKT1, + 3 more
View Profile
DAkkS D-ML-13217-01-00 Halle (Saale), DE
Blutgruppe AB0 Rh-Faktor Rh-Formel Kell-Ag A-Untergruppe + 3 more
View Profile
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
View Profile
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
View Profile
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
View Profile
DAkkS D-ML-13278-09-00 Hamburg, DE
5-Fluorouracil-Toxizität (DPYD) Cowden-Syndrom (PTEN) Diffuses Magenkarzinom (CDH1) Hereditärer Brust- und Eierstockkrebs (HBOC), (BRCA1, BRCA2, CH + 3 more
View Profile
DAkkS D-ML-13278-03-00 Hamburg, DE
Factor) Treponema pallidum-Antikörper Treponema pallidum (TPHA) Treponema pallidium (VDRL) Escherichia coli Serotyp + 3 more
View Profile
DAkkS D-ML-13278-07-00 Hamburg, DE
Cyclosporin A Everolimus FK 506 (Tacrolimus) Sirolimus 6-Methylmercaptopurin + 3 more
View Profile
DAkkS D-ML-13278-02-00 Hamburg, DE
Lymphozyten gesamt, absolut Natürliche Killerzellen, T-Lymphozyten Zelltypisierung (B-Lymphozyten CD57-positive NK-Zellen CD4+ Helfer-Lymphozyten + 3 more
View Profile
DAkkS D-ML-13060-06-00 Heidelberg, DE
TSH 17-Hydroxyprogesteron IRT PAP GALT + 3 more
View Profile
DAkkS D-ML-13060-04-00 Heidelberg, DE
Zellzahlbestimmung, CD3+, CD4+, CD8+, CD fixpunktzellen Phänotypisierung von Leukozyten C3d Faktor H + 3 more
View Profile
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
View Profile
DAkkS D-ML-13060-01-00 Heidelberg, DE
Acetominophen Albumin Alkohol ALP Alpha 2-Antiplasmin + 3 more
View Profile
DAkkS D-ML-13060-09-00 Heidelberg, DE
Salmonella spp. Shigella spp. Staphylococcus spp. Yersinia spp. Actinomyces spp. + 3 more
View Profile
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
View Profile
DAkkS D-ML-13144-04-00 Jena, DE
Cryptococcus neoformans, Antikörper Pneumokokken Salmonellen Shigella spp. Staphylococcus aureus + 3 more
View Profile
DAkkS D-ML-13144-06-00 Jena, DE
AB0-System A-Untergruppe Rhesusfaktor Antigen-D im indirekten Direkter Coombstest + 3 more
View Profile
DAkkS D-ML-13144-07-01 Jena, DE
Impedanzaggregometrie (Induktoren: ADP, TRAP, Arachidonsäure, RIPA-Test Thrombozytenfunktionstest Organische Säuren + 3 more
View Profile
DAkkS D-ML-13253-04-00 Köln, DE
Liste aller Untersuchungsverfahren Webpräsenz des Medizinischen Laboratoriu Adrenalin Dopamin Noradrenalin + 3 more
View Profile
DAkkS D-ML-13253-03-01 Köln, DE
Cryptococcus-neoformans-Antigen Plasmodium spp. Aerobe und fakultativ anaerobe aerob wachsende Bakterien schnellwachsende Bakterien + 3 more
View Profile
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
View Profile
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
View Profile
DAkkS D-ML-13253-01-00 Köln, DE
Treponema pallidum (Lues-AK) HIV -AK HCV-AK HBs-AG HBc-Ak + 3 more
View Profile
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
View Profile

No matching labs found.

Industries

Environmental noise assessment and regulation Renewable energy and wind turbine development Industrial operations and manufacturing HVAC and building systems acoustics Transportation and infrastructure noise control

Related Standards

  • DIN 45680 Low-frequency noise measurement and assessment
  • ISO 1996-1 Acoustics — Description, measurement and assessment of environmental noise — Part 1: Basic quantities and assessment procedures
  • DIN 45645-2 Beurteilung von Musikdarbietungen durch ihre Umgebung — Teil 2: Meßtechnik und Beurteilung

Other Test Methods

0 labs selected
Compare