Daily noise exposure level (LEX,8h) (dB(A) re. 20 μPa)
Daily noise exposure level (LEX,8h) (dB(A) re. 20 μPa)
Time-weighted average of the noise exposure levels for a nominal eight-hour working day as defined by international standard ISO 1999: 1990, point 3.6. It covers all noises present at work, including impulsive noise.