5.10.1 The alternative means of obtaining information
in the event of a failure in the monitoring system should be as follows:
-
.1 oil content meter or sampling system: visual
observation of the surface of the water adjacent to the effluent discharge;
-
.2 flow meter: pump discharge characteristics,
etc;
-
.3 ship's speed indicating device: main engine
r.p.m. etc;
-
.4 processor: manual calculation and manual recording;
and
-
.5 overboard discharge control: manual operation
of pumps and valves.