37. DEWCAL

This program calculates the DEW POINT inside vessel cargo holds resolving the well known condensation problems on board vessel transporting grains and all agriculture products loaded in bulk. Ventilation of agriculture products must be carried out following careful rules and also calculating the DEW POINT during the sea passage of the vessel. If ship's master do not knows said rules, the result of a bad ventilation, will be a serious damage to the cargo and also to a long P and I (Protection and Indemnity) disputes between the Owners and cargo receivers.
The ship's master, calculating the DEW POINT, will know if in the actual position of the vessel it is possible to let in fresh air inside cargo holds.

It is obvious to remember to the ship's master that the quality of the cargo delivered to the receivers must be the same resulted at loadport. Therefore it is a good suggestion to take samples of the cargo loaded at loadport; samples should be labelled, dated and signed by the shippers