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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UNE-EN ISO 16283-3
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UNE-EN ISO 3382-2
BS EN ISO 16283-2:2020
- Gleichspannung
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0,1 mV
> 220 mV
> 2,2 V
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DIN ISO 16000-6
DIN ISO 16000-3
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VDE 414-9-11
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NF-T 90-029
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Elektrische Messgrößen
Gleichstrom- und Niederfrequenzmessgröße
Railway brake — magnetic track brakes (U
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ISO 16181-1
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Acoustics — tonality assessment (DIN 456
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DIN EN 60068-2-64
DIN EN 60068-2-78
DIN 53505
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NF X 43-264
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UNE-EN 60942
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UNE-EN 60804
UNE-EN 60651
UNE-EN 61252
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ASTM D 2240
ISO 48-9
UNE 7050-3
UNE-EN ISO 10360-2
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UNE-EN 60804
UNE-EN 61252 (Técnica calibrador acústic
UNE-EN 60942
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ASTM E 415 21
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IEC 62109-1
DIN EN 50178: 1998
IEC 61000-4-16: 2015
IEC 62109-2
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