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
1,670 Accredited labs
18 Countries

Showing 76–100 of 161 labs

COFRAC 1-5752 Angers Cedex 01, FR
NF U47-036-1 DIN EN ISO 14403-2 NF T 90-412 NF T90-350 DIN EN ISO 7899-1 + 3 more
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COFRAC 1-7140 Nantes Cedex 3, FR
NF V 05-116 NF V 04-415 NF V 04-407 NF V04-403 NF V04-401 + 3 more
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COFRAC 1-7141 Parcay Meslay, FR
DIN EN ISO 17294-2 DIN EN ISO 14403-2 NF EN ISO 7887 – NF T 90-412 DIN EN ISO 7899-1 + 3 more
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COFRAC 1-7142 Saint Ave, FR
NF V08-106 DIN EN ISO 17294-2 DIN EN ISO 21528-2 ISO 19343 NF T90-105-2 + 3 more
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COFRAC 1-1296 Heudebouville, FR
DIN EN ISO 1833-6 DIN EN ISO 1833-2 DIN EN ISO 1833-7 DIN EN ISO 1833-1 DIN EN ISO 1833-20 + 3 more
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COFRAC 1-0101 Ecully Cedex, FR
DIN EN ISO 14419 DIN EN ISO 14045 DIN EN ISO 3071 DIN EN ISO 13934-1 NF EN 14325 (2004) – norme annulée + 3 more
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COFRAC 1-7015 Ploufragan, FR
NF U47-210 NF U47-036-1 NF U47-108 NF U47-100 NF U47-107 + 3 more
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COFRAC 1-1828 Quimper Cedex, FR
DIN EN ISO 21528-1 DIN EN ISO 21528-2 DIN EN ISO 10304-1 DIN EN ISO 6888-2 NF V08-054 + 3 more
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COFRAC 1-6099 Strasbourg Cedex, FR
ISO 5815-1 DIN ISO 15923-1 EN 13087-2 DIN EN ISO 7887 DIN EN ISO 13395 + 3 more
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LERES

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COFRAC 1-1951 Rennes Cedex, FR
DIN EN ISO 14403-2 NF T 90-412 DIN EN ISO 7899-1 NF EN ISO 7887 – méthode C ISO 5815-1 + 3 more
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COFRAC 1-0871 Coulounieix-Chamiers, FR
DIN EN ISO 17294-2 DIN EN ISO 14403-2 DIN EN ISO 10304-1 NF-T 90-101 NF T90-015-1 + 3 more
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COFRAC 1-0833 Mende, FR
DIN EN ISO 17294-2 DIN EN ISO 14403-2 NF T 90-412 DIN EN ISO 21528-2 DIN EN ISO 7899-1 + 3 more
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COFRAC 1-1466 Pessac Cedex, FR
NF V08-106 NF T 90-412 NF EN ISO 7887 – VDE 414-9-11 DIN EN ISO 7899-1 + 3 more
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L.D.A.R.

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COFRAC 1-0551 Laon, FR
DIN ISO 11466 NF X31-120 DIN EN ISO 11885 NF X31-147 DIN EN 16175-1 + 3 more
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COFRAC 1-0796 Dijon Cedex, FR
DIN EN ISO 17294-2 DIN EN ISO 14403-2 DIN EN ISO 13395 NF T 90-412 DIN EN ISO 7899-1 + 3 more
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COFRAC 1-7330 Montauban, FR
DIN EN ISO 10703 NF T 90-412 DIN EN ISO 21528-1 DIN EN ISO 7899-1 VDE 414-9-11 + 3 more
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COFRAC 1-0977 Montpellier Cedex 2, FR
DIN EN ISO 13395 DIN EN ISO 7899-1 DIN EN ISO 6888-2 ISO 5815-1 NF T90-015-1 + 3 more
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COFRAC 1-0997 Limoges, FR
ISO 5815-1 EN 13087-2 DIN EN ISO 6579-1 NF U47-108 ISO 15705 + 3 more
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COFRAC 1-1046 Les Ponts De Ce, FR
NF V08-401 DIN EN ISO 6888-2 DIN ISO 16649-2 BS ISO 15214:1998 NF V08-409 + 3 more
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L.D.V.H.A. 05

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COFRAC 1-1356 Gap Cedex, FR
NF V 04-155 DIN EN ISO 21528-2 DIN ISO 16649-2 DIN EN ISO 6888-2 NF V08-054 + 3 more
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COFRAC 1-1105 Serres-Castet, FR
DIN EN 10002-1 ASTM E8/E 8M ASTM A 370 NF EN ISO 6892-1 (méthodes A1, A2 et DIN EN 2002-001 + 3 more
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COFRAC 1-6990 La Ciotat, FR
DIN EN 13624 DIN EN 13727 DIN EN ISO 11930 DIN EN 17387 DIN EN ISO 22717 + 3 more
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COFRAC 1-1979 Limoges, FR
NF V 04-407 DIN EN ISO 6888-1 NF V04-403 0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 + 3 more
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COFRAC 1-1160 Trinite, FR
NF T 90-412 DIN EN ISO 6888-1 DIN EN ISO 7899-1 DIN EN ISO 21528-2 DIN ISO 16649-2 + 3 more
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COFRAC 1-0714 Biot, FR
DIN EN ISO 21528-2 DIN EN ISO 6888-2 DIN ISO 16649-2 ISO 5815-1 BS ISO 15214:1998 + 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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