Geonoise InstrumentsInstruments and software for noise registration and calculations
Geonoise InstrumentsNational Environmental Board No.15 (DIW): 1997
General noise level standards
– The maximum sound level at the boundary or facade can never by more than 115 dB(A)
– The average sound level (24 hours) should not be more than 70 dB(A)
Notification of the National Environmental Board No.29 (PCD): 2022
Annoyance Noise Level Standard
– The level produced by an entity cannot be more than 10 dB(A) higher than the background level (L90) without the entity in operation
-Disturbance noise < 10 dB(A)
Bangkok Metropolitan Administration (BMA): 2005
Noise standard for music, disco, pub, bar, concert event
– The average sound level during the event not be more than 90 dB(A)
– The maximum sound level not be more than 110 dB(A)
– Annoyance noise level <10 dB(A)
Department of Labor Protection and Welfare 2018
Standards in the administration and management of occupational health and the environment in the workplace on heating, lighting and noise.
TWA 8 Hrs.00 min = 85 dB(A)
TWA 6 Hrs.21 min = 86 dB(A)
TWA 5 Hrs.02 min = 87 dB(A)
TWA 4 Hrs.00 min = 88 dB(A)
TWA 3 Hrs.11 min = 89 dB(A)
TWA 2 Hrs.31 min = 90 dB(A)
Reference
Department of Industrial Works
