How Do You Calculate Noise Exposure Levels?
How Do You Calculate Noise Exposure Levels? For noise, given an 85-dBA exposure limit and a 3-dB exchange rate, the TWA is calculated according to the following formula: TWA = 10.0 × Log(D/l 00) + 85 where D = dose. How do you calculate TWA ppm? An example with values inserted would be if an