ISO 9612:2009

Occupational Noise Exposure Measurement

This standard specifies methods for measuring and assessing noise exposure of workers in occupational environments to determine compliance with exposure limits and identify hearing protection needs. The measurement protocols account for temporal variations in noise and worker movement to characterize daily noise exposure levels. Results are critical for occupational health and safety compliance, hearing loss prevention programs, and workplace risk assessment. Accredited laboratories ensure measurement uncertainty, calibration standards, and data interpretation meet regulatory requirements for legal and health-safety defensibility.

What it measures

  • Equivalent continuous A-weighted sound pressure level (Leq,8h)
  • Peak sound pressure levels and impulsive noise
  • Daily noise exposure level (LEX,8h)
  • Frequency-weighted noise exposure
🇩🇪 DIN EN ISO 4871 🇬🇧 BS EN ISO 4871 🇫🇷 NF EN ISO 4871 🇮🇹 UNI EN ISO 4871 🇪🇸 UNE EN ISO 4871 🇳🇱 NEN EN ISO 4871 🇩🇪 DIN EN ISO 11201 🇬🇧 BS EN ISO 11201 🇫🇷 NF EN ISO 11201 🇮🇹 UNI EN ISO 11201 🇪🇸 UNE EN ISO 11201 🇳🇱 NEN EN ISO 11201
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angeborener Chromosomensatz Molekularzytogenetische Analyse CDKN2C(1p32.3 )/CKS1B ( 1q21-22) Amplifikation, Deletion, Rearrangement, TCF3(11q23)/PBX(11q23)(19p13.3) + 3 more
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DAkkS D-ML-22061-01-01 Neu-Ulm, DE
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DAkkS D-ML-18244-01-01 Altenburg, DE
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DAkkS D-K-19647-01-00 Köln, DE
Magnetische Feldstärke Referenzmagnetsystem Magnetische Flussdichte dichtemessgerät Magnetisches Moment + 3 more
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Mahr

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DAkkS D-K-15074-01-01 Göttingen, DE
eingängige zylindrische Einstellringe * 10 mm Railway braking — adhesion under braking Rundheitsabweichung Prüfstifte * 0,14 mm + 3 more
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MFPA

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DAkkS D-K-11143-01-01 Weimar, DE
Kraft (WPM) * Kalibrierung der Prüfkraftmesseinrichtung Machinery vibration — industrial machine 0,01 N + 3 more
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DAkkS D-K-11267-01-00 Braunschweig, DE
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DAkkS D-PL-11220-01-01 Hannover, DE
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DAkkS D-PL-11142-01-01 Dortmund, DE
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DAkkS D-ML-22182-01-00 Leipzig, DE
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DAkkS D-ML-22296-01-01 Augsburg, DE
25-OH-Vitamin D Stimulation mit Antigenen (Aspergillus 1 / 2, Babesia Bartonella henselae, Candida albicans, Chlamydia pneumoniae, Chlamydi + 3 more
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DAkkS D-ML-13168-08-01 Hannover, DE
Thrombozytenaggregationstest IgG Antikörper gegen Kollagen HLA-DR ADP Ristocetin + 3 more
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DAkkS D-ML-13168-03-00 Hannover, DE
Echinococcus-Antikörper Haemophilus influenzae Phänotypisierung Thrombozytäre Antikörper Salmonellen-Typisierung + 3 more
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DAkkS D-ML-13168-09-00 Hannover, DE
ABO-System lsoagglutinine (Serumeigenschaften) Rh-Merkmal D Kell-Merkmal K + 3 more
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DAkkS D-ML-13168-02-00 Hannover, DE
Toxoplasma gondii -Ak Treponema pallidum-AK Herpes-Simplex-Viren, Typen 2, Aciclovir-Resistenz Adenoviren + 3 more
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DAkkS D-ML-22843-01-01 Cottbus, DE
D-Dimer Gerinnungsfaktor XIII Protein S Fibrinmonomere Oligosaccharide + 3 more
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DAkkS D-ML-22843-02-00 Cottbus, DE
Aspergillus-Antikörper Brucella-Antikörper Candida dubliniensis Candida-Antikörper Cryptococcus Antigen + 3 more
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DAkkS D-ML-22289-01-00 Heppenheim (Bergstraße), DE
ALOT AML-ED/MRD BPDCN B-ALL-ED/MRD T-ALL-ED/MRD + 3 more
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DAkkS D-ML-13288-01-00 Bautzen, DE
Basophile Blutbildmessung (Automat) Eosinophile Erythrozyten Basophile Granulozyten + 3 more
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DAkkS D-ML-13288-02-01 Dresden, DE
Basophile Blutbildmessung (Automat) Eosinophile Erythrozyten Basophile Granulozyten + 3 more
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DAkkS D-ML-13291-01-00 Magdeburg, DE
Metanephrin, Normetanephrin VMS, 5-HIES, HVS 10-OH-Carbazepin 3-Methoxytyramin 9-OH-Risperidone + 3 more
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Industries

Manufacturing and industrial production Construction and heavy equipment operation Mining and quarrying operations Transportation and logistics Entertainment and live event production

Related Standards

  • ISO 4871 Acoustics — Declaration and verification of noise emission values of machinery and equipment
  • ISO 11201 Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound pressure levels at a work station and at other specified positions
  • IEC 61672-1 Electroacoustics — Sound level meters — Part 1: Specifications

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