Code for Construction and Equipment of Ships Carrying Liquefied Gas In Bulk (I782E)

Published Date

January 2000

Code for Construction and Equipment of Ships Carrying Liquefied Gas In Bulk (I782E)

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This Code was developed to provide an international standard for the safe carriage by sea in bulk of liquefied gases and certain other substances. To minimize the risks to the ships, their crews and the environment, the Code prescribes the design and constructional features of such ships and the equipment they should carry.

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The Code generally applies to ships built on or after 31 December 1976 but prior to 1 July 1986. This edition incorporates amendments 1 to 4, including a supplement containing amendments adopted in 1994 by resolution MSC.32(63), which came into force on 1 July 1998, and a supplement, Summary of Minimum Requirements of the Code, is included.

1 CODE FOR THE CONSTRUCTION AND EQUIPMENT OF SHIPS CARRYING LIQUEFIED GASES IN BULK

Preamble

CHAPTER I – GENERAL

1.1 Purpose

1.2 Application

1.3 Hazards

1.4 Definitions

1.5 Equivalents

1.6 Survey requirements 4]

1.7 Review of the Code

CHAPTER II – SHIP SURVIVAL CAPABILITY AND CARGO TANK LOCATION

2.1 General

2.2 Freeboard and stability

2.3 Damage and Flooding assumptions

2.4 Survival requirements

2.5 Standard of damage to be applied

2.6 Location of cargo tanks

2.7 Special consideration for small ships

CHAPTER III - SHIP ARRANGEMENTS

3.1 Segregation of the cargo area

3.2 Accommodation, service and control station spaces

3.3 Cargo pump rooms and cargo compressor rooms

3.4 Cargo control rooms

3.5 Access to spaces in the cargo area

3.6 Air-locks

3.7 Bilge, ballast and fuel oil arrangements 1]

3.8 Bow or stern loading and discharge arrangements

CHAPTER IV – CARGO CONTAINMENT

4.1 General

4.2 Definitions

4.3 Design loads

4.4 Structural analysis

4.5 Allowable stresses and corrosion allowance

4.6 Supports

4.7 Secondary barrier

4.8 Insulation

4.9 Materials

4.10 Construction and testing

4.11 Stress relieving for independent tanks type C

4.12 Guidance formulae for acceleration components

4.13 Stress categories

CHAPTER V – PROCESS PRESSURE VESSELS AND LIQUID, VAPOUR AND PRESSURE PIPING SYSTEMS

5.1 General

5.2 Cargo and process piping

5.3 Cargo system valving requirements

5.4 Ships cargo hoses #

5.5 Cargo transfer methods

CHAPTER VI – MATERIALS OF CONSTRUCTION

6.1 General

6.2 Material requirements

6.3 Welding and non-destructive testing

CHAPTER VII – CARGO PRESSURE/TEMPERATURE CONTROL

7.1 General

7.2 Refrigeration systems

CHAPTER VIII – CARGO VENT SYSTEMS

8.1 General

8.2 Pressure relief systems

8.3 Additional pressure relieving system

8.4 Vacuum protection systems

8.5 Size of valves

CHAPTER IX – ENVIRONMENTAL CONTROL FOR CARGO CONTAINMENT SYSTEMS

9.1 Environmental control within cargo tanks and cargo piping systems

9.2 Environmental control within the hold spaces (cargo containment systems other than independent tanks type C)

9.3 Environmental control of spaces surrounding independent tanks type C

9.4 Inerting

9.5 Inert gas production on board

CHAPTER X – ELECTRICAL ARRANGEMENTS

10.1 General

10.2 Types of equipment

CHAPTER XI – FIRE PROTECTION AND FIRE EXTINGUISHING

11.1 Fire Safety requirements

11.2 Fire Water main equipment

11.3 Water spray system

11.4 Dry chemical powder fire extinguishing systems

11.5 Gas-dangerous enclosed spaces

11.6 Fireman’s outfits 4]

CHAPTER XII – MECHANICAL VENTILATION IN CARGO AREA

12.1 Spaces required to be entered during normal cargo handling operations

12.2 Spaces not normally entered

CHAPTER XIII – INSTRUMENTATION (GAUGING, GAS DETECTION

13.1 General

13.2 Level indicators for cargo tanks

13.3 Liquid level alarms

13.4 Pressure gauges

13.5 Temperature indicating devices

13.6 Gas detection requirements

CHAPTER XIV – PERSONNEL PROTECTION

CHAPTER XV – FILLING LIMITS FOR CARGO TANKS

15.1 General

15.2 Information to be provided to the master

CHAPTER XVI - USE OF CARGO AS FUEL

CHAPTER XVII – SPECIAL REQUIREMENTS

17.1 General

17.2 Personnel Protection

17.3 Materials of construction

17.4 Independent tanks 2]

17.5 Refrigeration systems

17.6 Deck cargo piping

17.7 Bow or stern loading and discharge lines

17.8 Exclusion of air from vapour spaces

17.9 Moisture Control

17.10 Inhibition

17.11 Permanently installed toxic gas detectors

17.12 Special requirements for individual gases

17.13 Vapour return connexions 2]

17.14 Toxic products 2]

17.15 Flame screens on vent outlets 2]

17.16 Maximum allowable quantity of cargo per tank 2]

17.17 Submerged electric cargo pumps 4]

CHAPTER XVIII – OPERATING REQUIREMENTS

18.1 Information required to be carried

18.2 Compatibility

18.3 Personnel training

18.4 Entry into spaces

18.5 Carriage of cargo at low temperature

18.6 Protective clothing

18.7 Systems and controls

18.8 Cargo transfer operations

18.9 Additional operating requirements

CHAPTER XIX – SUMMARY OF MINIMUM REQUIREMENTS

APPENDIX – MODEL FORM OF CERTIFICATE OF FITNESS FOR THE CARRIAGE OF LIQUEFIED GASES IN BULK

2 RESOLUTION A.328 (IX) – CODE FOR THE CONSTRUCTION AND EQUIPMENT OF SHIPS CARRYING LIQUEFIED GASES IN BULK

3 RESOLUTION MSC.7 (48) – RECOMMENDATION FOR CHEMICAL TANKERS AND GAS CARRIERS CONSTRUCTED BEFORE 1 JULY 1986

4 GUIDELINES FOR THE UNIFORM APPLICATION OF THE SURVIVAL REQUIREMENTS OF THE BULK CHEMICAL CODE AND THE GAS CARRIER CODE

5 TESTING OF SHORE INSTALLATION CARGO HOSES – MSC/CIRC.220

A​​s a specialized agency of the United Nations, IMO is the global standard-setting authority for the safety, security and environmental performance of international shipping. Its main role is to create a regulatory framework for the shipping industry that is fair and effective, universally adopted and universally implemented.  

In other words, its role is to create a level playing-field so that ship operators cannot address their financial issues by simply cutting corners and compromising on safety, security and environmental performance. This approach also encourages innovation and efficiency.

Shipping is a truly international industry, and it can only operate effectively if the regulations and standards are themselves agreed, adopted and implemented on an international basis. And IMO is the forum at which this process takes place.

Title: Code for Construction and Equipment of Ships Carrying Liquefied Gas In Bulk (I782E)
Product Code: 4410m096
ISBN: ISBN 13: 9789280111651, ISBN 10: 9280111655
Published Date: January 2000
Binding Format: Paperback
Book Height: 240 mm
Book Width: 150 mm
Book Spine: 5 mm
Weight: 0.20 kg
Author: IMO

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