IBC CODE – International code for the construction and equipment of ships carrying dangerous chemicals in bulk.

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FULL FORM OF IBC CODE

IBC stands for International code for the construction and equipment of ships carrying dangerous chemicals in bulk.

WHAT ARE THE OBJECTIVES OF IBC CODE

The objective of lBC Code is to provide international standards in ship design, construction and equipment for the safe carriage of dangerous chemicals and noxious liquid substances. It also tells you about cargo transfer, cargo containments, cargo venting arrangements, fire protection & fire prevention and special requirements for certain cargo etc. Implementation of IBC code reduces the risk to ship, crew and environment

WHERE IT COMES FROM

Carriage of Chemical in bulk is covered by SOLAS chapter VII – Carriage of dangerous goods and MARPOL Annex II – Regulations for the Control of Pollution by Noxious Liquid Substances in Bulk. Both conventions require chemical tankers build after 1 July 1986 to comply with IBC Code(International code for the construction and equipment of ships carrying dangerous chemicals in bulk)

WHAT IS BCH CODE

Vessel build before 1 July 1986 must comply with BCH Code ( Code for the construction and equipment of ships carrying dangerous chemicals in bulk) which is the Predecessor of IBC code.

The Ships constructed after 1986 carrying substances identified in CH 17 of IBC code must follow the requirement for design, Construction, Equipment and Operation of ships.

Ships subjected to code shall be designed to one of the following standards.

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.

  • Can carry Cat X, Y, Z
  • Max quantity to load in a tank is 1250 m3.
  • B/5 from ship-side plating.
  • B/15 from Bottom plating.

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.

  • Can carry Cat Y, Z
  • Max quantity to load in a tank is 3000 m3.
  • 760mm from ship-side plating.
  • B/15 from Bottom plating.

TYPE 3 – 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.

  • No special requirement

Thus, a type 1 ship is a chemical tanker intended for the transportation of products considered to present the greatest overall hazard and type 2 and type 3 for products of progressively lesser hazards. Accordingly, a type 1 ship shall survive the most severe standard of damage and its cargo tanks shall be located at the maximum prescribed distance inboard from the shell plating.

CONTENT OF IBC CODE

IBC code contains 21 chapters as given below.

Chapter 1- General
Chapter 2- Ship survival capability and location of cargo tanks
Chapter 3- Ship arrangements
Chapter 4- Cargo containment
Chapter 5- Cargo transfer
Chapter 6- Material of construction, protective lining and coatings
Chapter 7- Cargo temperature control
Chapter 8- Cargo tank venting and gas freeing arrangements
Chapter 9- Environmental control
Chapter 10- Electrical installation
Chapter 11- Fire protection and fire extinguishment
Chapter 12- Mechanical ventilation in cargo area
Chapter 13- Instrumentation
Chapter 14- Personal protection
Chapter 15- Special requirements for certain cargo
Chapter 16- Operational requirements
Chapter 17- Summary of minimum requirements ( list of cargo can carry)
Chapter 18- List of product which the code does not carry
Chapter 19- Index of product carried in bulk
Chapter 20- Transport of liquid chemical wastes
Chapter 21- Criteria for assigning carriage requirements for products subjected to IBC code

CONTENT OF CHAPTER 17 OF IBC CODE

The total number of columns is 15 (From A to O)

  • A – Product name.
  • B – UN No.
  • C – Pollution Category ( X, Y, Z ).
  • D – Spillage and Pollution Hazard.
  • E – Ship Type 1, 2, 3
  • F – Tank Type (Integrated, Integral, Gravity, Pressure)
  • G – Tank venting method (Open / Controlled )
  • H – Tank Environment (Inert/Pad/Vent/Dry/NO)
  • I – Electrical equipment
  • J – Gauging (Open/ Restricted/ Closed)
  • K – Vapour detection – (Flammable / Toxic)
  • L – Fire Protection
  • M – Material of construction
  • N – Emergency Equipment
  • O – Additional Requirement

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