Imdg. code
Download as DOCX, PDF15 likes5,113 views
The IMDG Code provides regulations for the safe transport of dangerous goods by sea. It is required under two UN conventions and aims to enhance safety, protect the environment, and facilitate trade. The Code classifies dangerous goods into 9 classes and provides guidelines for packing, marking, documentation, stowage, and emergency response procedures. It is updated every two years with the latest edition in 2012.
Imdg. code
- 1. IMDG CODE Required under two mandatory UN conventions 1. SOLAS 2. MARPOL - chapter 7- Carriage of dangerous goods. - Annex -3 –pollution by harmful substances carried in packaged form. THE OBJECTIVE OF THE IMDG CODE IS TO, EEnhance the safe transport of dangerous goods. P – Protect the marine environment. F - Facilitate the free unrestricted movement of dangerous goods. Presented in 3 books Updated every 2 years. Latest edition 2012 Volume-1 Volume -2 Supplement Both volumes and supplement need to be consulted. IMDG comprises 7 chapters(parts), Volume 1 chapters Part 1 – General provisions, Definitions and Training. Part 2 – Classification Part 3 – Is in Volume 2 Part 4 – Packing and tank provisions Part 5 – Consignment procedures Part 6 – Construction and testing of packaging Part 7 – Requirements Concerning transport operations. Volume 2 chapter Part 3 – Dangerous goods list, special provisions and exceptions. class definitions and test criteria. But the substances which are mentioned with N.O.S are not tested as per the test criteria, and full information of such substances not available. Because of this reason it is not mentioned in the index. When the new volume is published, then these substances are will be included in the list. SUPPLEMENT The EmS guide Emergency response procedures for ship carrying DG It contains; Advice in dealing with fire and spillages Medical first aid guide for DG. Reporting procedures IMDG code classification system The purpose is; 1. To distinguish between goods which are consulted to be dangerous for transport. 2. To identify the dangers which are presented by DG in transport 3. To ensure that the correct measures are taken to enable these goods to be transported safely without risk to persons or to property. Classes of dangerous cargo: IMPORTANT What is N.O.S? And why the DG goods mentioned with N.O.S are not listed in the Index (volume 2)? N.O.S means- ‘not otherwise specified’ Substances or articles which are not specifically listed by name in the dangerous goods list shall be classified under a ‘generic’ OR ‘not otherwise specified’ (N.O.S) Proper shipping name. The substances or article shall be classified according to the Class 1 : Explosives Class 2 : Gases compressed, liquefied or dissolved under pressure. Class 3 : Inflammable liquids. Class 4.1 : Inflammable solids. Class 4.2 : Inflammable solids or substances liable to spontaneous combustion. Class 4.3 : Inflammable solids or substances which when in contact with 1
- 2. IMDG CODE water emit flammable gases. Class 5.1 : Oxidizing substances. Class 5.2 : Organic peroxides. Class 6.1 : Poisonous toxic substances. Class 6.2 : Infectious substances. Class 7 : Radioactive substances. Class 8 : Corrosives. Class 9 : Miscellaneous dangerous cargo which presto a danger not covered by other classes. Marking: The following requirements shall be complied with1) The package must be clearly marked with the correct technical names of goods and an indication must be given with the hazards that could arise during the transportation of the goods. 2) Markings must comply with IMDG. 3) The outer material of the package will survive 3 months immersion and the marking must be durable. 4) If the outer material does not survive 3 months then the inner receptacle which will survive 3 months must be durably marked. 5) If the goods are carried in a container then the unit must have distinctive labels on the external. Packing: 1) Shall be in good condition. 2) Of such a character that an interior surface with which the contents may come in contact is not dangerously affected by the substance being conveyed and capable of withstanding the ordinary risk of carriage at sea. 3) Where absorbent or cushioning is being used Capable of minimizing the danger to which the liquid may give rise. Prevent movement and ensures that the receptacle remains surrounded. Absorb liquid in the event of breakage. 4) Receptacles shall have ullage at the filling temperature sufficient to allow for the highest temperature during the voyage. 5) Cylinders or receptacles under pressure shall have been adequately constructed, tested and correctly filled. 6) Empty receptacles shall be considered as dangerous and be treated as dangerous cargo unless they have been cleaned and dried. Stowage: 1) Dangerous cargo should be stowed safely appropriately according to the nature of the cargo. Incompatible goods to be separated from one another. 2) Explosives to be stored in magazines and to be kept securely closed at sea. They should be kept far away from electricals. 3) Goods which give dangerous vapours should be stowed in well-ventilated places. 4) Ships carrying inflammable liquids and gases special precautions should be taken against fire and explosion. 5) Substances liable to spontaneous heating should not be carried unless adequate precautions have been taken. DOCUMENTATION (Ch 5.4) The carrier required to carry Dangerous Goods Transport Document (Dangerous goods Declaration) This document shall contain the following info; UN number The PSN (proper shipping name) The primary hazards class Subsidiary hazards class Where assigned the packing group (eg. PG II) In addition the shipper must supply the following written information where appropriate: 1) The number and type of packages 2) The gross weight of the consignment 3) The net weight of the explosive content of class 1 goods 2
- 3. IMDG CODE 4) The flash point if 61 C or below. If goods are packed into a container or vehicle the vessel must be given a packing certificate for the container or vehicle. A stowage plan must be made which gives information noted above and also the location of where the goods are stowed Stowage and segregation Chapter 7.1 – Deals with stowage Chapter 7.2- Deals with segregation Segregation tables- page 425 For container – Volume 1 page 439 (7.4.3.2) For Ro RoVolume 1 page 442 (7.5.3.2) Clear of living quarter’s means that package or cargo transport units shall be stowed at a minimum distance of 3 mtr from accommodation, air intakes, machinery spaces, and other enclosed space. CARRIAGE OF DANGEROUS GOODS ON BOARD A PASSENGER VESSEL No explosive can be transported on a ship carrying more than 12 passengers except: 1. Safety explosives 2. Any explosive the net weight of which is 10 kg or under 3. Distress signals up to a total weight of 1000 kg 4. Fireworks which are unlikely to explode violently. No dangerous goods should be allowed on board any vessel carrying more than 25 passengers GENERAL FIRE PRECAUTIONS WHEN CARRYING DANGEROUS GOODS 1. Reject any damaged or leaking packages 2. Packages should be stowed in a location which ensures protection from accidental damage or heating 3. Combustible material should be kept away from ignition sources 4. Goods must be segregated from substances liable to start or to spread fires 5. It may be necessary to ensure accessibility of dangerous goods so 6. 7. 8. 9. that packages in the vicinity of a fire may be protected or moved to safety Enforce prohibition of smoking in dangerous areas Post ‘No Smoking’ signs or symbols All electrical fittings and cables must be in good condition and safe guarded against short circuits and sparking All ventilators must have spark arrestors of suitable wire mesh. General guidelines for spillage Think of safety first Avoid any contact with dangerous substances. Do not walk through spilled liquids or dust (solids). Keep away from vapours or gases. Sound alarm. Keep the bridge and living quarters up wind if possible. Wear full protective clothing resistant to chemical attack and self contained breathing apparatus. Locate stowage position of leaking cargo. Identify cargo. Obtain UN numbers and the EmS SPILLAGE SCHEDULE of dangerous goods involved. Consider which measures of the EmS SPILLAGE SCHEDULE are applicable and should be followed. Be prepared to use the MEDICAL FIRST AID GUIDE (MFAG). Contact the designated person of the company responsible for the operation of the ship to obtain expert advice on dangerous goods emergency response measures. 3