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
๐Ÿ‡ฉ๐Ÿ‡ช DIN EN ISO 4871 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN ISO 4871 ๐Ÿ‡ซ๐Ÿ‡ท NF EN ISO 4871 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN ISO 4871 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN ISO 4871 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN ISO 4871 ๐Ÿ‡ฉ๐Ÿ‡ช DIN EN ISO 11201 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN ISO 11201 ๐Ÿ‡ซ๐Ÿ‡ท NF EN ISO 11201 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN ISO 11201 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN ISO 11201 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN ISO 11201
1,868 Accredited labs
20 Countries

Showing 151โ€“175 of 393 labs

UKAS 2719 Cannel Row, GB
(HSG 248) โ€“ 2021 TP003 based on HSG 248 (PCM) based on HSG 248 TP002 based on HSG 248 Appendix 5 of HSG 227 (2004) + 1 more
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UKAS 27551 Crook, GB
(HSG 264, 2012)
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UKAS 4238 Hereford, GB
Appendix 5 of HSG 227 (2004) (HSG 264, 2012)
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UKAS 2099 Exeter, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 SP1 based on HSG 248
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UKAS 9608 Basildon, GB
(HSG 264, 2012) and Appx. 3 of HSG 227 (2004)) Executive guides HSG 264 (2012)
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UKAS 2030 Chelmsford, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 staining based on HSG 248
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UKAS 28785 Wolverhampton, GB
(HSG 248) โ€“ 2021 SOP 3 based on HSG 248 (PCM) based on HSG 248
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UKAS 8007 Corringham, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 TP03 based on HSG 248
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UKAS 2734 Darlington, GB
(HSG 248) โ€“ 2021 TP005, based on HSG 248 (PCM) based on HSG 248
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UKAS 2183 Newmarket, GB
staining based on HSG 248. (PCM) based on HSG 248 (HSG 248) โ€“ 2021 DIN EN 12457-2 DIN EN 12457-3
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UKAS 0452 Bideford, GB
AC CURRENT AC VOLTAGE (continued) Measurement (continued) DC CURRENT Generation (continued) + 3 more
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UKAS 1574 York, GB
IEC 61000-6-1 IEC 61000-4-29: 2000 DIN EN 62233 IEC 61000-4-11: 2004 DIN EN 61000-4-12 + 3 more
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UKAS 2262 Ipswich, GB
ISO 6579-1 ISO 6888-1 ISO 16649-2 ISO 11290-1 1) AM/M/11-2 based on BS EN + 3 more
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UKAS 9659 Grimsby, GB
Method 15.2 based on BS EN ISO ISO 15213-2 Method 9.8 based on BS EN BS EN Method 5.11 based on BS EN ISO Method 4.3 based on BS EN ISO + 3 more
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UKAS 2622 Linlithgow Bridge, GB
ISO 6579-1 ISO 4832 EUMM 3.03 based on BS EN EUMM 3.07 based on BS EN ISO BS ISO 21528-2:2017 + 3 more
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UKAS 0342 Wolverhampton, GB
ISO 712 ISO 4833-1 on BS EN ISO 1736:2008 ISO 21528-2 BS ISO 4832:2006 + 3 more
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UKAS 9661 Teston, GB
(HSG 264, 2012)
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UKAS 0174 Stevenage, GB
BS 7177 BS 5852 DIN EN 597-1 BS 6807:1986 DIN EN 597-2 + 3 more
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UKAS 1780 Wickford, GB
M002based on HSG 248 (HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 0166 Cannock, GB
(HSG 264, 2012) on BS 8580-1:2019 and ACoP L8
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UKAS 0183 Norwich, GB
Frequenc 220 mV range FREQUENCY 10 Hz to 100 kHz difference from 10 % to 100 % of the sta 6105A control 0ยฐ to 360ยฐ + 3 more
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UKAS 1497 Carrickfergus, GB
ISO Mark Casting (TS5527)
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UKAS 9875 Benfleet, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 2671 Castle Donington, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 DOC/002 based on HSG 248
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UKAS 4155 Sunderland, GB
5 of HSG 227 (2004) (HSG 264, 2012)
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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 โ€” Declaration and verification of noise emission values of machinery and equipment
  • ISO 11201 Acoustics โ€” Noise emitted by machinery and equipment โ€” Measurement of emission sound pressure levels at a work station and at other specified positions
  • IEC 61672-1 Electroacoustics โ€” Sound level meters โ€” Part 1: Specifications

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