Purpose, Content, Requirements and Implementation.
Code for the Construction and Equipment of ships carrying
liquefied gases in bulk ( IGC Code )THE AVENGERSIron manCaptain
AmericaThorHulk HawkeyeBlack widowPurpose, Content, Requirements
and Implementation.PURPOSECONTENTChapter 1: GENERAL. Chapter 2:
SHIP SURVIVAL CAPABILITY AND CARGO TANK LOCATION. Chapter 3: SHIP
ARRANGEMENTSChapter 4: CARGO CONTAINMENTChapter 5: PROCESS PRESSURE
VESSELS AND LIQUID, VAPOUR, AND PRESSURE PIPING SYSTEMSChapter 6:
MATERIALS OF CONSTRUCTIONChapter 7: CARGO PRESSURE/TEMPERATURE
CONTROLChapter 8: CARGO VENT SYSTEMSChapter 9: ENVIRONMENTAL
CONTROL FOR CARGO CONTAINMENT SYSTEMSChapter 10: ELECTRICAL
ARRANGEMENTSChapter 11: FIRE PROTECTION AND FIRE EXTINGUISHING
Chapter 12: MECHANICAL VENTILATION IN CARGO AREAChapter 13:
INSTRUMENTATION (GAUGING, GAS DETECTION)Chapter 14: PERSONNEL
PROTECTIONChapter 15: FILLING LIMITS FOR CARGO TANKS Chapter 16:
USE OF CARGO AS FUELChapter 17: SPECIAL REQUIREMENTSChapter 18:
OPERATING REQUIREMENTSChapter 19: SUMMARY OF MINIMUM
REQUIREMENTSREQUIREMENTSChapter 1 : GeneralDefinitions, equivalent,
survey requirements The purpose, application, hazards ReviewChapter
2 : Ship survival capability and cargo tank locationThe requirement
for ship survival capability and location of cargo tanks in this
chapter are regarded as CCS (Custom Control Sensors) conditions of
classification, based on the relevant requirements of the flag
AdministrationChapter 3 : Ship arrangementsIt provides the standard
of freeboard, cargo rooms and areas, accomodation, service,
machinery spaces and control stationsabout arrangements for bilge,
ballast, fuel oil, loading and unloading areas.
Chapter 4 : Cargo containmenttechnological regulation about
design loads and structure, temperature limitations and 8 stress
categories testshydropneumatic test, tightness test, cold spot
inspection,
Chapter 5 : Process pressure vessels and liquid, vapour and
pressure piping systemapply to product and process piping vapour
piping, vent lines of safety valves permissible pressure,
stressess, material for piping system.cargo hoses, designed,
manufactured and tested to the requirements of the Administration
and port authorities. transferred by gas pressurization.
Chapter 6 : Materials of constructionthe requirements for
plates, sections, pipes, forgings, castings and
weldments.manufacture, testing, inspection and documentation.
Chapter 7 : Cargo pressure/temperature controlthe cargo
containment system should be capable of withstanding the full
vapour pressure of the cargo under condition of the upper ambient
design temperature irrespective of any system provided for dealing
with boil-off gas. The refrigeration system should consist of one
or more units capable of maintaining the required cargo
pressure/temp under conditions of the upper ambient design
temperature.
Chapter 8 : Cargo vent systemsa pressure relief system.should be
connected to a vent piping system.
Chapter 9 : Environmental control for cargo containment
systemsWithin cargo tanks and cargo piping system.Within the hold
spaces.Inert gas production on board.
Chapter 10 : Electrical arrangementsCargo containment
systems.Hold Spaces.Similarly the lighting system should be divided
between at least 2 branch circuits and electric motors should be
separated by gas-tight bulkhead or deck.Chapter 11 : Fire
protectionall sources of ignition must be excluded; all equipment
and system need to be sure about quality and safety.
Chapter 12 : Mechanical ventilation in cargo areaspaces required
to be entered during normal cargo handling operation.spaces not
normally entered.
Chapter 13 : Instrumentation ( Gauging, gas detection )Equipment
for each cargo tank.indicators related to the remote control .check
equipment .and testing testing procedure .Chapter 14 : Personnel
protectionFully equipped with the safety equipment in addition to
the firemans outfit needed; the aid medical equipment and antidotes
must be available on board.Chapter 15 : Filling limits for cargo
tanksNo cargo tanks should have a higher filling limits than 98% at
reference temperature; A relevant cert. should be permanently kept
on board.
Chapter 16 : Use of cargo as fuelall details of the gas fuel
system must be submitted to the Administration for approval.Chapter
17: Special requirement Personnel protectionMaterials of
constructionSeparate tanksRefrigeration systemsCargo
pipingDiminishing of air from vapour spaces
Moisture controlProhibitionToxic gas detectors need to be
installedSpecial requirements for individuals gasesToxic
productsMaximum allowable quantity of cargo per tankChapter 18 :
Operating requirementsInformation required to be
carriedCompatibility of productsPersonnel trainingPermission to
enter the spacesCarriage of cargo at low temperatureProtective
clothingSystems and controlsCargo transfer operations
IMPLEMENTATION
The Maritime Safety Committee at its forty-eighth session
adopted with resolution MSC.5(48) the IGC Code. It is intended that
the Code becomes mandatory under the 1983 amendments to the
International Convention for the Safety of Life at Sea, 1974, on 1
July 1986. All Gas carriers built on or after that date shall
comply with the International Gas Carrier Code. Ships built before
1 July 1986 should at least comply with this Code but may be
certificated under the IGC Code as set out in resolution
MSC.7(48).incorporates the amendments adopted by MSC Many countries
all over the world apply the IGC Code(The application of IGC Code).
For example: China applied the IGC Code as Rule for construction
and equipment of ships carrying liquefied gases in bulk and it
entered into force on 1 July 2006(Effective from July 1 2006)
