The IBC Code divides chemical tankers into three types:
The ship type required for individual products is indicated in column E in the table of chapter 17.
Type I: It is a chemical tanker intended to transport chapter 17 products with very severe environmental and safety hazards that require maximum preventive measures to preclude an escape of such cargo.
Max Volume of Cargo can be filled per tank is 1250 m3
The ship should be capable of sustaining collision or stranding damage anywhere along her length.
Tanks intended for the carriage of cargoes should be located outside the extent of the damage as per standard damage assumptions.
Type 2: It is a chemical tanker intended to transport chapter 17 products with appreciably severe environmental and safety hazards that require significant preventive measures to preclude an escape of such cargo.
Max Volume of Cargo can be filled per tank is 3000 m3
A ship > 150 meters in length
Capable of sustaining collision or stranding damage anywhere along with her length
A ship < 150 meters in length
Capable of sustaining collision or stranding damage anywhere along with her length except involving either of the bulkheads bounding a machinery space located aft
Type 3: It is a chemical tanker intended to transport chapter 17 products with sufficiently severe environmental and safety hazards which require a moderate degree of containment to increase survival capability in a damaged condition.
Moderate float ability and damage stability requirement
No special requirements for cargo tank location
Length > 225 meters
Capable of sustaining damage anywhere along the length
Length < 225 meters
Capable of sustaining damage anywhere along her length except involving either of the bulkheads bounding a machinery space located aft.
Ref: Marine Teacher Website
