Hazards of coal Flashcards
May emit … which is a problem because?
Methane Gas, flammable
Accumulation of this gas leads to
Enclosed space issues as it can causes unconsciousness, and it can leak into adjacent compartments
Some coals can
Self heat leading to spontaneous combustion
Some coals can react with … producing two things
Water producing acids which corrode, and flamable gases i.e. hydrogen
Coal must be … as per…
Properly stowed and segregated as per IMSBC code (or IMDG if packaged)
Ship must receive
all relevant information and advised of characteristic and special precautions
Cargo spaces and bilges must be
Clean and dry
All electrical components in cargo space or adjacent areas must be
free from defects and safe to use in a flammable atmosphere
Ship should have equipment to measure
Gas concentration of Methane, oxygen and carbon monoxide. And Ph
Regularly test … thoughout voyage
Bilge water
Temp reading devices to measure
Cargo hold temp
What should be prohibeted in Cargo area
Smoking and naked flames
Why should you trim cargo
To remove air pockets where gas could accumulate and also cause instability
How long should you surface ventilate cargo
For 24 hours after departure, and close vents after methane levels low enough
Regularly check atmosphere in
adjacent spaces
