6.1 In most machinery spaces it would be desirable
and advisable to protect operating or watchkeeping seafarers by providing
a sound reducing control room or other similar space (see paragraph
2.1 of this appendix).
6.2 In continuously manned machinery spaces of
small ships and of existing ships where noise levels are in excess
of 85 dB(A), it would be desirable to provide a noise refuge at the
control station or manoeuvring platform where the watch keeper might
be expected to spend the major part of the time.