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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SPEKTRA Schwingungstechnik und Akustik GmbH Dresden

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DAkkS D-K-15183-01-02 Dresden, DE
Akustische Messgrößen* Schalldruckpegel (Freifeld), (bezogen au Freifeld-Leerlauf- oder 125 Hz ˃ 250 Hz mit / ohne Windschirm > 8 kHz + 3 more
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SPS electronic

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DAkkS D-K-20497-01-01 Twist, DE
- Gleichspannung Messgeräte 1 mV > 330 mV 3,3 V Messgeräte 0,33 V + 3 more
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SSW Prüfsysteme und Service GmbH Weißberg

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DAkkS D-K-17475-01-00 Hilden, DE
Vibration measuring instruments — test m Vibration measurements near traffic — me Härteprüfmaschinen Acoustics — tonality assessment (DIN 456 Noise measurement on railway vehicles — + 3 more
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ST GOBAIN GLASS France - Saint-Gobain Research Compiègne

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COFRAC 1-1374 Thourotte, FR
DIN EN ISO 10140-1 DIN EN ISO 717-1 DIN EN ISO 10140-2 DIN EN ISO 10140-4 DIN EN ISO 10140-5
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STEARO

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COFRAC 1-7174 Velaux, FR
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
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SYNLAB GHANA

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DAkkS D-ML-20424-01-00 Accra, DE
Alpha-Fetoprotein Beta Human Chorionic Gonadotrophin (BHCG), quantitative CA 125 CEA + 3 more
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SYNLAB MVZ Augsburg

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DAkkS D-ML-13225-01-01 Augsburg, DE
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SYNLAB MVZ Dachau GmbH SYNLAB Gauting Zweigniederlassung der SYNLAB MVZ Dachau

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SYNLAB MVZ Hessen GmbH Standort Kassel

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SYNLAB MVZ Weiden GmbH Medizinisches Versorgungszentrum Regensburg

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SYNLAB MVZ Weiden GmbH SYNLAB Medizinisches Versorgungszentrum Nürnberg

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DAkkS D-ML-13014-02-01 Nürnberg, DE
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SYNLAB Medizinisches Versorgungszentrum Augsburg

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DAkkS D-ML-13225-01-00 Augsburg, DE
HbA1c β-HCG Blutbild, automatisch Differentialblutbild, automatisch Hb-Äquivalent der Retikulozyten + 3 more
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SYNLAB MVZ Humangenetik München

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DAkkS D-ML-13225-07-00 München, DE
angeborener Chromosomensatz partieller angeborener partieller Chromosomensatz (zur Abklärung bekannter familiärer Chromosomenveränderung) + 3 more
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SYNLAB Medizinisches Versorgungszentrum Berlin

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DAkkS D-ML-13202-01-00 Berlin, DE
HbA1c Blutbild, maschinell Differentialblutbild, maschinell Zellzählung Retikulozyten, maschinell + 3 more
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SYNLAB Medizinisches Versorgungszentrum Ettlingen

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DAkkS D-ML-13095-01-00 Ettlingen, DE
RPR (Cardiolipin) Amiodaron, Desmethylamiodaron Clozapin, Norclozapin HbA1c Cyclosporin A, Everolimus, Sirolimus, Ta + 3 more
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SYNLAB Medizinisches Versorgungszentrum Hamburg

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SYNLAB Medizinisches Versorgungszentrum Heidelberg

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SYNLAB Medizinisches Versorgungszentrum Humangenetik Freiburg

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DAkkS D-ML-21093-01-01 Freiburg, DE
BTD PAH Prader-Willi-Syndrom (PWS) / (PWS)WS/Angelman-Syndrom (AS) Familiärer Brust- und Eierstockkrebs + 2 more
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SYNLAB Medizinisches Versorgungszentrum Humangenetik Mannheim

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SYNLAB Medizinisches Versorgungszentrum Jade-Weser

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DAkkS D-ML-18938-01-01 Varel, DE
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SYNLAB Medizinisches Versorgungszentrum Trier

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DAkkS D-ML-13122-01-00 Trier, DE
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SYNLAB Medizinisches Versorgungszentrum Trier GmbH Zweigniederlassung SYNLAB Medizinisches Versorgungszentrum Neuwied

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DAkkS D-ML-13122-02-00 Neuwied, DE
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SYNLAB Medizinisches Versorgungszentrum Weiden

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DAkkS D-ML-13014-01-00 Weiden, DE
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SYNLAB Medizinisches Versorgungszentrum Weiden GmbH Medizinisches Versorgungszentrum Nürnberg

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DAkkS D-ML-13014-02-00 Nürnberg, DE
HbA1c Mittlere Blutglucose Aktivitätskonzentration Blutsenkung % Hyperchrome Erythrozyten + 3 more
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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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