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
Accredited labs
20
Countries
Showing 251–254 of 254 labs
TERANA NIEVRE
Active
DIN EN ISO 17294-2
NF T 90-412
DIN EN ISO 10304-1
NF X 31-615
ISO 5815-1
+ 3 more
TERANA PUY-DE-DOME
Active
NF T 90-412
NF U47-101
DIN EN ISO 7899-1
DIN ISO 16649-2
DIN EN ISO 6888-2
+ 3 more
TOXILABO
Active
NF ISO 21438-3
NF X 43-264
NF ISO 21438-1
ISO 16200-2
NF ISO 21438-2
+ 3 more
ISO 16750-3
IEC 60068-2-80)
IEC 60068-2-53 limitée à :
IEC 60068-2-14 fait
IEC 60068-2-1 et
+ 3 more
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