Noise Exposure Limits: EU_2003_10_EC
Occupational noise exposure limits, action levels, and hearing protector ratings per OSHA 29 CFR 1910.95 (5 dB exchange rate, 90 dBA PEL, 85 dBA action level), NIOSH REL 1998 (3 dB exchange rate, 85 dBA), ACGIH TLV 2024 (3 dB exchange rate, 85 dBA), EU Directive 2003/10/EC (80/85/87 dBA thresholds), and ISO 1999:2013. Includes time-weighted average duration limits at each exposure level, HPD noise reduction ratings (NRR per ANSI S3.19 and SNR per EN ISO 4869-2) for foam plug/earmuff/dual protection, and octave-band A-weighting correction factors (63–8000 Hz) per IEC 61672-1.
| regulatory framework | exposure parameter | action level dBA (dBA) | dose at action level pct (%) | duration hours (hours) | duration minutes (minutes) | exchange rate dB (dB) | level dBA (dBA) | notes | parameter type | peak limit dB (dB) | pel twa dBA (dBA) | standard document |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EU_2003_10_EC | 80dBA_action_lower | 80 | 100 | 8 | 480 | 3 | 80 | Lower exposure action value: 80 dBA TWA (or 135 dB peak); employer must make hearing protectors available | action_level | 140 | 87 | EU Directive 2003/10/EC Article 4 |
| EU_2003_10_EC | 85dBA_action_upper | 85 | 100 | 8 | 480 | 3 | 85 | Upper exposure action value: 85 dBA TWA (or 137 dB peak); mandatory use of hearing protectors | action_level | 140 | 87 | EU Directive 2003/10/EC Article 6 |
| EU_2003_10_EC | 87dBA_limit_value | 80 | 100 | 8 | 480 | 3 | 87 | Exposure limit value: 87 dBA TWA (or 140 dB peak) taking HPD attenuation into account; must not exceed | time_limit | 140 | 87 | EU Directive 2003/10/EC Article 3 |
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