Example of type A
Nicklel Ore
Coal slurry
Example of type B
Iron oxide
Sodium Nitrate
Example of type C
Cement
Limestone
Before loading coal
Bilge wells cleaned
Hatch top wheels greased
All electrical fittings checked for insulation
Instruments to measure methane, oxygen, carbon monoxide levels, ph levels of bilge water
Hazards of coal
Flammable Liquefaction Asphyxiation Self heating Corrosion
Self heating coal
If an increase in carbon monoxide, Hatch covers closed after loading and seals applied Surface ventilation to a minimum Carbon monoxide regularly measured If 55° expert advice should be sought