OSHA 1910.95 Noise Dose and TWA
Multi-row workshift dose with the OSHA 5 dB exchange formula, 8-hr TWA, and pass / fail against the 85 dBA action level and 90 dBA PEL.
Formula and source
T_hr = 8 / 2^((L - 90) / 5). D_pct = sum(C_i / T_i) * 100. TWA_dBA = 16.61 * log10(D / 100) + 90. Levels below 80 dBA contribute zero to the OSHA dose.
OSHA 29 CFR 1910.95(b) Appendix A and Table G-16a.
Audience
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