3.5 Environmental conditions
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Statutory Documents - IMO Publications and Documents - International Codes - Noise Levels - Code on Noise Levels on Board Ships – Resolution A.468(XII) - Annex - Code on Noise Levels on Board Ship - Chapter 3 - Measurement - 3.5 Environmental conditions

3.5 Environmental conditions

  3.5.1 The readings obtained may be affected if the water depth is less than five times the draught or if there are large reflecting surfaces in the ship's vicinity. Such conditions shall therefore be noted in the noise survey report.

  3.5.2 The meteorological conditions such as wind and rain, as well as sea state, should be such that they do not influence the measurements. Wind force 4 and 1 m wave height should not be exceeded. If this cannot be achieved, the actual conditions shall be reported.

  3.5.3 Care shall be taken to see that noise from extraneous sound sources, such as people, entertainment, construction and repair work, does not influence the noise level on board the ship at the positions of measurement. If necessary, measured values may be corrected for steady state background noise according to the energy summation principle.

Parent topic: Chapter 3 - Measurement
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