Scope
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
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DIN EN ISO 4871
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BS EN ISO 4871
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NF EN ISO 4871
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UNI EN ISO 4871
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UNE EN ISO 4871
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NEN EN ISO 4871
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DIN EN ISO 11201
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BS EN ISO 11201
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NF EN ISO 11201
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UNI EN ISO 11201
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UNE EN ISO 11201
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NEN EN ISO 11201
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DIN EN 14791
IEC 60519-11
BS ISO 11338-1:2003
DIN EN 13284-1
DIN EN 14385
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(HSG 248) – 2021
(PCM) based on HSG 248
based on BS EN 12457
DIN EN 1948-4
dbSNP rs1800562, rs1799945, rs1800730, r
(HSG 264, 2012)
HSG 227 (2004))
(HSG 248) – 2021
(PCM) based on HSG 248
DIN EN 1303
DIN EN 12209
DIN EN 14846
BS 3621:2007+A2:2012
BS 8621:2007+A2:2012
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Enertek International
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DIN EN 12279
DIN EN 12278
-22018G/A, rs182549
DIN EN 303-2
DIN EN 15502-2-1
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Enquin Environmental
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(HSG 248) – 2021
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(Section 4) based on HSG 248
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HSG 264 (2012) and Appx. 3 of
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(HSG 248) – 2021
SOP/11, based on HSG 248
(PCM) based on HSG 248
(HSG 248) – 2021
DIN EN 12457-2
3.02 based on HSG 248
staining based on HSG 248.
(PCM) based on HSG 248
Environmental Compliance
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requirements of BS EN 15259:2007
DIN EN 14181
DIN EN 13126-19
DIN EN 15058
DIN EN 14789
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Environmental Essentials
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TP003 based on HSG 248
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TP002 based on HSG 248
Appendix 5 of HSG 227 (2004)
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Executive guides HSG 264 (2012)
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SOP 3 based on HSG 248
(PCM) based on HSG 248
Essex Asbestos Testing
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(HSG 248) – 2021
(PCM) based on HSG 248
TP03 based on HSG 248
Eton Environmental Group
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TP005, based on HSG 248
(PCM) based on HSG 248
Eurofins Chemtest
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staining based on HSG 248.
(PCM) based on HSG 248
(HSG 248) – 2021
DIN EN 12457-2
DIN EN 12457-3
AC CURRENT
AC VOLTAGE (continued)
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IEC 61000-6-1
IEC 61000-4-29: 2000
DIN EN 62233
IEC 61000-4-11: 2004
DIN EN 61000-4-12
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ISO 6579-1
ISO 6888-1
ISO 16649-2
ISO 11290-1
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Eurofins Food Testing UK
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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
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