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 1,726–1,750 of 1,868 labs

DAkkS D-ML-13069-08-00 Kiel, DE
Sprosspilze, Schimmelpilze, Dermatophyte Staphylococcus aureus, MRSA Plasmodien (Malaria) (Plasmodium falciparum/vivax/ovale/malariae Legionella, Antigen + 3 more
View Profile
DAkkS D-ML-13130-02-00 Tübingen, DE
Phytansäure Behensäure Lignocerinsäure Cerotinsäure Adrenalin + 3 more
View Profile
DAkkS D-ML-13130-04-00 Tübingen, DE
Ataxien (FXN, SCA1, SCA2, SCA3, SCA6, SC Tumor-Prädispositionen: Brust- Hereditäres Magenkarzinom (CDH1) C9orf72 Chorea Huntington (HTT) + 3 more
View Profile
DAkkS D-ML-13130-01-00 Tübingen, DE
Urinsediment (Leukozyten) Legionella spp. Lipoid-AK (Treponema pallidum Aktivitätsparameter) Salmonella spp. + 3 more
View Profile
DAkkS D-ML-13130-03-01 Tübingen, DE
Herpes-simplex (IgM) Herpes-simplex (IgG) Herpes-simplex 1 (IgG) Herpes-simplex 2 (IgG) Varizella-Zoster-Virus (IgM) + 3 more
View Profile
DAkkS D-ML-13130-07-00 Tübingen, DE
Ataxien (FXN, SCA1, SCA2, SCA3, SCA6, SC Tumor-Prädispositionen: Brust- Hereditäres Magenkarzinom (CDH1) C9orf72 Chorea Huntington (HTT) + 3 more
View Profile
DAkkS D-ML-13130-05-00 Tübingen, DE
Basophile Granulozyten Allergenspezifisches IgE Gesamt IgE Tryptase anti-Cardiolipin-IgG + 3 more
View Profile
DAkkS D-ML-13294-08-00 Ulm, DE
Aminosäurendiagnostik verschiedene Aminosäuren) Differenzialblutbild Urinbestandteile Zellzählung + 3 more
View Profile
DAkkS D-ML-13294-03-01 Ulm, DE
angeborene und erworbene Chromosomenstörungen gezielter Nachweis (sub)mikroskopisch kleiner angeborener oder erworbener + 3 more
View Profile
DAkkS D-ML-13294-07-00 Ulm, DE
Treponema pallidum (Cardiolipin Antikörper, Lues-Analytik) Cryptococcus neoformans Meningitiserreger (Streptococcus agalactiae, Haemophilus + 3 more
View Profile
DAkkS D-ML-13294-06-00 Ulm, DE
Allergenspezifisches IgE ECP (Eosinophiles cationisches (ECP) Mastzell Tryptase spezifisches IgG + 3 more
View Profile
DAkkS D-ML-13294-02-00 Ulm, DE
ADP Arachidonsäure Kollagen/Epinephrin Ristocetin Expression aktivierungsabhängiger + 3 more
View Profile
DAkkS D-ML-13294-01-01 Ulm, DE
HbA1c Aldosteron Cortisol APCR- Resistenz Cardiolipin-AK IgG + 3 more
View Profile
DAkkS D-ML-13220-02-00 Homburg, DE
freies Hämoglobin Erythrozyten Hämatokrit Hämoglobin Kleines Differential-Blutbild + 3 more
View Profile
DAkkS D-ML-13220-01-01 Homburg, DE
Urinsediment Lamotrigin HbA1c Erythrozyten Aripiprazol + 3 more
View Profile
DAkkS D-ML-13155-04-00 Greifswald, DE
Familiäre Adenomatöse Polyposis Syndrome (APC, MUTYH) STK11, SMAD4 ), TruRisk® -Panel [SNV, CN Familiäre Polyposis-Syndrome [FAP] (APC, MUTYH) + 3 more
View Profile
DAkkS D-ML-13161-02-00 Göttingen, DE
angeborener Chromosomensatz Molybdän-Cofaktor Defizienz (MOCS1, MOCS2) Fragiles X-Syndrom: FMR1 Spinocerebellare Ataxie (SCA) + 3 more
View Profile
DAkkS D-ML-13161-01-00 Göttingen, DE
Thrombozytenaggregation Born Verschlußzeit Kollagen/ADP Verschlußzeit Kollagen/Adrenalin 6-Methyl-Mercaptopurinnukleotide + 3 more
View Profile
DAkkS D-ML-13161-05-00 Göttingen, DE
Thrombozytenaggregation Born Verschlußzeit Kollagen/ADP Verschlußzeit Kollagen/Adrenalin 6-Methyl-Mercaptopurinnukleotide + 3 more
View Profile
DAkkS D-ML-13161-06-00 Göttingen, DE
angeborener Chromosomensatz Molybdän-Cofaktor Defizienz (MOCS1, MOCS2) Fragiles X-Syndrom: FMR1 Spinocerebellare Ataxie (SCA) + 3 more
View Profile
DAkkS D-ML-13193-04-00 Rostock, DE
alpha-Aminobuttersäure Mianserin Arginin Asparagin Asparaginsäure + 3 more
View Profile
DAkkS D-ML-13193-01-00 Rostock, DE
Candida spp.-Antikörper Cardiolipin-Antikörper Meningitiserreger-Ag (E. coli Staphylococcus aureus Treponema pallidum-Antikörper + 3 more
View Profile
DAkkS D-ML-13193-03-01 Rostock, DE
Granulozytäre Antikörper (Screening und Differenzierung) HLA spezifische Antikörper B-Streptokokken (Screening) Ektoparasiten (Differenzierung) + 3 more
View Profile
DAkkS D-ML-13258-04-00 Mainz, DE
Anti-Thyreoglobulin-Antikörper [Anti-TG] Anti-Thyreoperoxidase Antikörper [Anti-TPO] Anti-TSH-Rezeptor Antikörper + 3 more
View Profile
DAkkS D-ML-13258-01-01 Mainz, DE
angeborener Chromosomensatz Silver-Russell-Syndrom: H19, KCNQ1OT1 MEST Deletion; Angelman-Syndrom + 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