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
1,868
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Shell Nederland Raffinaderij
Active
ISO 10370
DIN EN ISO 5163
IP 411, ISO 6251
ISO 3405
NEN 6646
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DIN EN 772-16
BS EN ISO 10545-2:2018
DIN EN 1344
DIN EN 12953-8
DIN EN 16510-2-4
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TAUW
Active
NEN 2826
NEN-EN 14791 2
ASTM D4157-13
ETSI EN 301 489-1 V2.2.3 2019-11
DIN EN 14792
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DIN EN ISO 3596
DIN EN ISO 14780
BS ISO 18283:2022
DIN EN ISO 10893-6
DIN EN 61442
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The Auditing Company
Active
#EN ISO 5164:14
# EN 116-97
# ISO 13736
NEN 4400-1
#ISO 6618
TÜV NORD Nederland
Active
DIN EN ISO 17232
DIN EN 14960
NEN 3140
#EN ISO 5164:14
EN 1069
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DIN EN ISO 16911-1
DIN EN 14789
DIN EN 14790
DIN EN 13725:2003-07 und Berichtigung
AG2 and IS EN 15259:2007
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