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chemical tanker navigation at sea
Precautions against funnel fires and sparks onboard chemical tankers

Engine and boiler room procedure : Combustion equipment
Boiler tubes, uptakes, exhaust manifolds and combustion equipment should be maintained in good condition as a precaution against funnel fires and sparks. In the event of a funnel fire, or if sparks are emitted from the funnel, cargo operations involving flammable products should be stopped and, at sea, the course should be altered to prevent sparks falling onto the cargo area.

Blowing boiler tubes

Funnel uptakes and boiler tubes should not be blown in port. At sea they should only be blown in conditions where soot will be blown clear of the tank deck.

Chemical vapour

It is important that flammable or toxic cargo vapour does not enter the engine room or boiler room spaces. Special attention should be paid to equipment in the engine room connected to the cargo area.

Contingency plans should be prepared for the possibility of an accident or an emergency that could give rise to a situation where toxic or flammable vapours are likely to enter the machinery spaces. Consideration should be given to the possible effect that such vapour entry may have on personnel or the operation of equipment. Any necessary preventive actions should be taken, such as isolating the source, closing accesses and openings, shutting down mechanical ventilation systems or main machinery, or evacuation of the spaces.



Related info:

Effects of Tugs and other craft alongside chemical tankers

Hot work precautions for chemical tankers at berth

Means of access (gangways or accommodation ladders) safety precautions



Related info:

Chemical handling suitable equipments for operational personnel onboard




Reference publications

  • Equipment Manufacturers Instruction Manuals
  • MARPOL 73/78 (latest consolidated edition)
  • International Safety Guide for Oil Tankers and Terminals (ISGOTT)
  • CFR 33 parts 125 to 199
  • Ship to Ship Transfer Guide (Petroleum)
  • MSDS for particular cargo carried
  • Chemical Tank Cleaning Guide


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