Chemical Tankers / Day 2 / Day 2 Topic 3 Chemical Tanker Regs
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3.4 IBC Code
As a result of re-evaluation process of the MARPOL Annex II products by the GESAMP, previously existing products were re-categorized into a present “3+1” category system instead of “4+1” system.
Under updated MARPOL Annex II edition, vegetable oils were specified and upgraded to Category Y.
3.4 IBC Code
Oil-like substances are not existing anymore under new revision. Hence products like Xylene, Toluene, Pentanes are all require to be in ships COF. Before these products could also be carried on product tankers as oil products.
3.4 IBC Code
The replacing of previous “4+1” category system with “3+1” system has also affected what products can be carried in the different IMO ship types.
The IBC Code provides the standards for the construction of three types of chemical tankers generally known as IMO ship
Types 1, 2 and 3.
3.4 IBC Code
Chapter 1 - General
The Code applies to ships regardless of size, including those of
less than 500 gross tonnage engaged in the carriage of bulk cargoes of dangerous chemicals or noxious liquid substances (NLS) other than petroleum or similar flammable products.
3.4 IBC Code
Chapter 1 - General
Contains Chapter 17, minimum requirements for carriage of chemicals as assessed under the Tripartite Agreement by GESAMP Committee. Liquid covered by the Code and listed in chapter 17 are those having a vapor pressure not exceeding 0.28 Mpa absolute (2.8 Bars) at a temperature of 37.8C.
3.4 IBC Code
Chapter 1 - General
Products that have been reviewed and determined not to present safety and pollution hazards to such an extent as to warrant the application of the Code are found in Chapter 18.
3.4 IBC Code
Chapter 1 - General
Some liquid substances in Chapter 18 are identified as falling into Pollution Category Z and, therefore, subject to certain requirements of Annex II of MARPOL 73/78.
Examples are: Acetone or n-Butyl Alcohol.
3.4 IBC Code
Chapter 1 - General
Chapter 18 also contains a 13 cargoes designated as “Other Liquid Substances” (OS).
OS means the product was evaluated and found to fall outside Categories X,Y and Z.
3.5 Definitions
Chapter 2 – Ship survival capability and location of cargo tanks
Ship type 1 – is a chemical tanker intended to transport chapter 17 products with very severe environmental and safety hazards which require maximum preventive measures to preclude an escape of such cargo.
3.5 Definitions
Chapter 2 – Ship survival capability and location of cargo tanks
Ship type 2 – is a chemical tanker intended to transport chapter 17 products with appreciably severe environmental and safety hazards which require significant preventive measures to preclude an escape of such cargo.