Institute of Physics – Sri Lanka Determination of exhaust sound pressure levels emitted by road vehicles in Sri Lanka Determination of exhaust sound pressure levels emitted by road vehicles in Sri Lanka C.L. Perera 1*, C.P. Abeyratne1 and C.M.2 Kalansuriya 1 Department of Physics, Faculty of Applied Sciences, University of Sri
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These Regulations set out limits of the maximum permissible noise levels, and the methods for measuring and calculating environmental noise level which are in …
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4. Noise levels shall be measured in terms of sound pressure levels L AMaX in dB (A), either by the use of a sound level meter which is in conformity with the standard set out as Type 1 of BS EN 60651 : 1994 or any other measuring equipment recommended by the Authority from time to time.
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*Provided that the noise level should not exceed 60 dB (A) inside existing houses, during day time. SCHEDULE II (Regulation 3) The following noise levels will be allowed where the background noise level exceed or is marginal to the given levels in Schedule I (a) For low noise areas in which the background noise level
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The following noise levels will be allowed in places where the background noise levels exceed or is marginal to the given levels in Schedule 1 :- a. For rural residential areas in which the background Noise level exceeds or marginal to the given level Measured Background Noise Level +3 dB (A) b. For noise sensitive areas in which the background
4. Noise levels shall be measured in terms of sound pressure levels L AMaX in dB (A), either by the use of a sound level meter which is in conformity with the standard set out …
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