Overview of IMDG Code

Overview of IMDG Code

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shipmates-IMDG-Code

 

THE PURPOSE OF THIS CODE IS TO FACILITATE SAFE TRANSPORT OF DANGEROUS GOODS AND AT THE SAME TIME TO ALLOW FOR THEIR UNRESTRICTED MOVEMENT.

THIS CODE IS THERE TO COMPLY WITH SOLAS CH 7, PART 8 AND MARPOL ANNEX III.

 

THE CODE HAS 2 VOLUMES AND 1 SUPPLEMENT.

 

VOLUME 1: CONSISTS OF PART 1, 2, 4, 5, 6 AND 7.

PART 1 – GENERAL DEFINITIONS, PROVISIONS AND TRAINING,

PART 2 – CLASSIFICATION,

PART 4 – PACKING AND TANK PROVISIONS,

PART 5 – CONSIGNMENT PROCEDURE,

PART 6 – CONSTRUCTION AND TESTING OF PACKAGING, INTERMEDIATE BULK

CONTAINER, LARGE PACKAGINGS ETC,

PART 7 – PROVISIONS CONCERNING TRANSPORT OPERATIONS.

 

VOLUME 2: CONSISTS OF PART 3

 

3.1 – GENERAL

3.2 – DANGEROUS GOODS LIST

3.3 – SPECIAL PROVISIONS

3.4 – LIMITED QUANTITIES

 

DANGEROUS GOODS LIST CONSISTS OF 18 COLUMNS:

1. U.N. No.

2. PROPER SHIPPING NAME,

3. CLASS,

4. SUBSIDIARY RISK,

5. PACKING GROUP,

6. SPECIAL PROVISIONS,

7. LIMITED QUANTITY,

8 & 9. PACKING REQUIREMENTS

10 & 11. IBC (INTERMEDIATE BULK CONTAINER

12, 13 & 14. TANK INSTRUCTIONS,

15. EmS

16. STOWAGE AND SEGREGATION,

17. PROPERTIES AND OBSERVATIONS,

18. UN No.

 

COLUMN NUMBER 1, 2, 3, 4, 5, 6, 15, 16, 17 ARE IMPORTANT FOR US TO KNOW.

 

SUBSIDIARY RISK: MEANS ANY OTHER RISK WHICH THE CARGO MAY POSSES OTHER THAN THE ONE SPECIFIED BY ITS CLASS. IT IS A SECONDARY RISK. IF A CARGO HAS TWO RISKS INVOLVED, THEN IT SHOULD BE MARKED WITH 2 LABELS STATING BOTH THE RISKS. IF A PACKAGE HAS MORE THAN ONE CLASS OF DANGEROUS GOODS INSIDE IT, THEN IT SHOULD BE MARKED WITH BOTH THE CLASSES.

 

shipmates_imdg_code

 

 

STOWAGE CATEGORY: STATED IN VOL 1, PART 7.1.

CLASS 1 HAS 15 CATEGORIES

CLASS 2-9 HAS 5 CATEGORIES (A~E).

THIS WILL DECIDE WHERE THE CARGO HAS TO BE STOWED, ON DECK OR UNDER DECK.

 

SEGREGATION: STATED IN VOL 1, PART 7.2

THIS SECTION HAS TABLES FOR FOLLOWING:

  1. SEGREGATION FOR DANGEROUS GOODS CARRIED IN PACKAGED FORM: THIS IS GIVEN IN THE FORM OF A TABLE. STATING THE TYPE OF SEGREGATION REQUIRED BETWEEN CLASSES OF CARGO, EXCLUDING CLASS 1, WHICH HAS AN ALTOGETHER SEPARATE TABLE. THE TERMS USED FOR SEGREGATION ARE:
    1. AWAY FROM: MAY BE CARRIED IN THE SAME COMPARTMENT OR ON DECK PROVIDED A MINIMUM HORIZONTAL SEPARATION OF 3M PROJECTED VERTICALLY IS MAINTAINED.
    2. SEPARATED FROM: CAN BE CARRIED IN THE SAME COMPARTMENT IF THE INTERVENING DECK IS RESISTANT TO FIRE AND LIQUIDS OTHERWISE IN SEPARATE HOLDS. ON DECK A MINIMUM HORIZONTAL SEPARATION OF 6 METERS.
    3. SEPARATED BY A COMPLETE COMPARTMENT FROM: THERE MUST BE EITHER A VERTICAL OR LONGITUDINAL SEPARATION BY A COMPLETE COMPARTMENT OR HOLD, AND TWO BULKHEADS WHICH ARE RESISTANT TO FIRE AND LIQUIDS. FOR ON DECK, A HORIZONTAL SEPARATION OF AT LEAST 12 METRES EVEN IF THE PACKAGE IS STOWED UNDER DECK.
    4. SEPARATED LONGITUDINALLY BY A COMPLETE COMPARTMENT OR HOLD FROM: A VERTICAL SEPARATION IS NOT ALLOWED, THE PACKAGE MUST BE HORIZONTALLY SEPARATED BY A COMPLETE COMPARTMENT. ON DECK A HORIZONTAL SEPARATION OF 24 METERS IS REQUIRED. BETWEEN ON DECK AND UNDER DECK CARGO A HORIZONTAL SEPARATION OF 24 METERS + INTERVENING COMPARTMENT.
  2. FOR CONTAINERS THE TABLE IS THE SAME AS ABOVE BUT THE MEANING OF THE ABOVE SEGREGATION TERMS IS DIFFERENT.
  3. FOR HATCH COVERLESS TYPE CONTAINER VESSEL, THE TABLE IS AGAIN THE SAME BUT THE MEANINGS OF THE ABOVE SEGRETATION TERMS IS DIFFERENT.
  4. THERE IS A SEPARATE TABLE FOR RO-RO VESSEL.
  5. SEPARATE TABLE FOR SEGREGATION BETWEEN CARGO IN BULK AND CARGO IN PACKAGED FORM.
  6. SEGREGATION TABLE FOR CLASS 1 CARGO WHICH IS BY COMPATIBILITY CODES. WHICH ARE A TO L, N AND S.

 

IMDG SUPPLEMENT: CONSISTS OF

 

    1. EMERGENCY PROCEDURES (EmS)
    2. MEDICAL FIRST AID GUIDE,
    3. REPORTING PROCEDURES,
    4. PACKING CARGO TRANSPORT UNIT,
    5. USE OF PESTICIDES ON SHIP,
    6. INF CODE

AND APPENDIX

 

  1. EMERGENCY PROCEDURES (Ems): GUIDELINES TO BE FOLLOWED IN CASE OF A DANGEROUS CARGO EMERGENCY (FIRE AND SPILLAGE). IN THE D.G. LIST COLUMN 15, IT IS STATED AS FA, SA IN FRONT OF A PARTICAL DANGEROUS CARGO, WHICH MEANS IN CASE OF A FIRE TABLE NO FA HAS TO BE FOLLOWED AND IN CASE OF SPILLAGE TABLE NO SA TO BE FOLLOWED. IF IT IS UNDERLINED IT MEANS THE CARGO HAS SOME SPECIAL RISK WHICH IS STATED SEPARATELY IN THE RESPECTIVE TABLE INFRONT OF THE SPECIFIC UN No.

FOR FIRE THERE ARE 10 TABLE (FA ~ FJ)

FOR SPILL THERE ARE 26 TABLES (SA ~ SZ).

 

  1. MEDICAL FIRST AID GUIDE: THIS PART OF THE SUPPLEMENT WITH THE MEDICAL FIRST AID TO BE GIVEN TO A PERSON WHO HAS COME IN CONTACT WITH THE DANGEROUS CARGO EITHER BY INHALATION, INJESTION, SKIN CONTACT, EYE CONTACT ETC. THIS IS IN THE FORM OF A TABLE (QUESTANAIRE), ASKING VARIOUS QUESTIONS ABOUT THE MEDICAL EMERGENCY. THE RESPECTIVE TABLE IN THE FLOWCHART HAS TO BE REFFERED. IN ANY CASE THE COMPLETE FLOWCHART HAS TO BE COMPLETED FOR ANY MEDICAL EMERGENCY.
  2. REPORTING PROCEDURES: REPORTINGS SUCH AS AMVER, AUSREP, MAREP, JASREP WHICH CONTAINS ITEMS FROM A~Z. IT HAS GOT VARIOUS REPORT SUCH AS DANGEROUS GOODS REPORT, MARINE POLLUTANT REPORT ETC. WHICH STATES THE ITEMS FROM A~Z WHICH HAVE TO BE SENT.
  3. DANGEROUS CARGO MANIFEST: IT IS A MANIFEST PREPARED BY THE VESSEL OR THE OWNER’S AGENT ON BEHALF OF THE VESSEL, FOR CUSTOM PURPOSES.

 

THIS MANIFEST GIVES DETAILS LIKE:

  • NAME OF THE SHIP,
  • IMO NUMBER,
  • NATINALITY OF THE SHIP,
  • MASTER’S NAME,
  • VOYAGE NUMBER,
  • PORT OF LOADING,
  • PORT OF DISCHARGE,
  • AGENT’S NAME.
  • DETAILS OF THE DANGEROUS GOODS ONBOARD:
  •             BOOKING REFERANCE NUMBER,
  •             MARKS AND NUMBER OR CONTAINER NUMBER,
  •             NUMBER AND KIND OF PACKAGES,
  •             CLASS OF CARGO,
  •             UN NO,
  • PACKAGING GROUP,
  • SUBSIDIARY RISK,
  • FLASHPOINT,
  • MARINE POLLUTANT,
  • WEIGHT OF THE CARGO,
  • EMS,
  • STOWAGE POSITION.
  • AGENT’S SIGNATURE AND MASTER’S SIGNATURE WITH PLACE AND DATE.

A VESSEL SHOULD ALSO HAVE A SHIPPER’S DECLARATION FOR EVERY PACKAGE THAT THE CARGO HAS BEEN PACKED, MARKED, LABELLED AND PLACARDED PROPERLY WITH THE REQUIREMENTS. GENERALLY THIS CERTIFICATE IS GIVEN TO THE SHIPPER BY THE PACKING AGENCY.

 

MAGAZINE STOWAGE FOR EXPLOSIVES:

MAGAZINE IS THE NAME GIVEN TO THE ENCLOSURE DESIGNED TO PROTECT CARGO FROM DAMAGE BY ANY OTHER CARGO DURING LOADING AND UNLOADING, AGAINST ADVERSE WEATHER CONDITIONS AND TO PREVENT UNAUTHORISED ACCESS. A MAGAZINE MAY BE A FIXED STRUCTURE ON SHIP, A CLOSED FREIGHT CONTAINER, THE LOADED COMPARTMENT OF A FREIGHT CONTAINER OR A PORTABLE MAGAZINE.

 

  1. MAGAZINE A: IT IS BASICALLY FOR THOSE SUBSTANCES WHICH HAVE TO BE KEPT CLEAR OF SHIP’S STEELWORK. THIS SORT OF MAGAZINE SPECIALLY GUARDS AGAINST FRICTION BETWEEN CARGO AND STEELWORK. THE INNER SIDES AND FLOOR SHOULD BE CLOSE BOARDED WITH WOOD. THE ROOF NEED NOT BE FLATTENED BUT SHOULD BE FREE OF LOOSE RUST AND SCALES. THE CARGO MUST BE AT A MINIMUM DEPTH OF 300mm FROM THE DECKHEAD.
  2. MAGAZINE C: A CLOSED CARGO UNIT PLACED AS CLOSE AS POSSIBLE TO THE CENTRELINE OF THE SHIP. IF NOT THEN AT A DISTANCE B/8 OR 2.4 METERS, WHICHEVER IS LESS, FROM THE SHIP SIDE.
  3. SPECIAL: THE GOODS MUST BE STOWED AS FAR AS POSSIBLE AWAY FROM THE LIVING QUARTERS OF THE CREW. GENERALLY GIVEN THE TOP MOST STOWAGE.

 

PRECAUTIONS WHEN LOADING / UNLOADING DANGEROUS GOODS

  1. DOCUMENTATION IN ORDER (SHIPPER’S DECLARATION, CONTAINER PACKING CERTIFICATE, EMERGENCY INFORMATION) EMERGENCY INFORMATION),
  2.  ALL CARGO OPERATIONS SUPPORTED BY A RESPONSIBLE OFFICER WHO SHOULD BE IN POSSESION OF OPERATIONAL AND EMERGENCY INFORMATION (INCLUDING STABILITY INFORMATION),
  3. NO INTOXICATED PERSON TO BE ALLOWED CHARGE OF OPERATION,
  4. NO UNAUTHORIZED PERSON ALLOWEN IN VICINITY OF CARGO BEING HANDLED,
  5. COMPARTMENT DRY AND SUITABLE FOR CARGO,
  6. CARGO HANDLING EQUIPMENT CHECKED BEFORE USE,
  7. NO CARGO HANDLING UNDER ADVERSE WEATHER CONDITIONS,
  8. PACKAGING AND SEGREGATION AS PER IMDG CODE,
  9. ALL CARGO PROPERLY LABELLED, NO LABELS DEFACED OR REMOVED,
  10. CARGO HANDLED CAREFULLY, HANDLING KEPT TO MINIMUM,
  11. TANKS NOT OVERFILLED,
  12. PORT AUTHORITY INFORMED,
  13. FIRE WIRES RIGGED AS NECESSARY,
  14. EMERGENCY EQUIPMENT AVAILABLE FOR FIRE / SPILLAGE,
  15. SUITABLE PRECAUTIONS AGAINST FIRE AND EXPLOSION,
  16. PACKAGES TO BE STOWED AS PLANNED IN ACCORDANCE WITH THE IMDG CODE,
  17. CARGO SPACE TO BE PROPERLY VENTILATED,
  18. ‘B’ FLAG DISPLAYED,
  19. THERE IS A SAFE ACCESS TO THE PACKAGES, SO THAT IN CASE OF FIRE THEY CAN BE REMOVED,
  20. ELECTRICAL FITTING IN GOOD CONDITION.
  21. THE PACKAGE IS PROPERLY LABELLED / MARKED AND PLACARDED.
  22. IF CARGO IN DRUMS, THEY SHOULD BE STOWED VERTICALLY,
  23. THE CARGO SHOULD BE PLACED IN SUCH A MANNER THAT THERE IS SAFE AND CLEAR ACCESS TO ALL LSA / FFA,
  24. PACKAGES SHOULD BE STOWED AWAY FROM SUNLIGHT OR OTHER HEAT SOURCES,
  25. NO CARGO SHOULD BE STOWED ON TOP OF PORTABLE TANKS,
  26. DG’S WITH GIVE OF VAPOUR TO BE STOWED ON DECK OR IN MECHANICALLY VENTILATED SPACES,
  27. CARGO SECURING MANUAL TO BE COMPLIED WITH,
  28. SEGREGATION AS PER THE IMDG CODE.

 

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