Ventilation records are crucial. In the event of moisture damage, evidence showing that the vessel ventilated correctly may be instrumental in defending any ensuing claims.
If the Dew point Rule has been followed, wet and dry bulb temperatures and dew points should be logged once per watch, bearing in mind that these may change consider ably over a short period. For the same reason, the sea temperature should also be noted. This information should be recorded for each hold together with the times of commencing, ceasing, or resuming ventilation, and the reasons for doing so.
If the Three Degree Rule has been followed, a record should be kept of the ambient air temperature and the sea temperature once per watch together the average temperature of the cargo at the time of loading. Once again, ventilation details should be documented for each hold.
All vessels carrying rubber are required to submit their temperature and ventilation log records on every three weeks basis to OPERATORS rep. as per instruction.