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IMSBC-Koden

International Maritime Solid Bulk Cargoes Code

The international Convention for the safety og Life at Sea, 1974 (SOLAS), tar for seg forskjellige aspekter ved maritim sikkerhet og inneholder i kapittel VII(7) krav om forhold som faller under frakt av farlige stoffer, i pakket eller “solid” form, i bulk. Ved frakt av “solid bulk cargoes” skal man handle i henhold til relevante bestemmelser i kapittel VII, som er forsterket og videre utdypet i form av IMSBC-koden. Selv om koden tar for seg faste stoffer i bulk, inneholder IMSBC-koden ikke krav/retningslinjer for frakt av korn i bulk, da dette er dekket under den internasjonale korn-koden (International Code for the Safe Carriage of Grain in Bulk – International Grain Code, 1991)

Hovedformålet for IMSBC-koden, som erstattet koden for sikker praktisering for fast bulklast (Code for Safe Practice for Solid Bulk Cargoes – BC Code), er å lege til rette for sikker lasting og frakt av faste bulklaster, ved å gi informasjon om farer forbundet med transport av spesielle typer bulk, instruksjoner og prosedyrer som skal forholdet seg til når man frakter slik last.

IMSBC-koden trådte i kraft 1. januar 2011, og gjort obligatorisk under bestemmelsene i SOLAS-konvensjonen. SOLAS inneholder også tilleggsinformasjon for å supplementere  IMSBC-koden, som koden for sikker lasting og lasting av bulkfartøy (Code of Practice for the Safe Loading and Unloading of Bulk Carriers – BLU Code), som er obligatorisk under SOLAS kapittel XII.

IMSBC-koden er, som forklart et internasjonalt krav, gjort obligatorisk for alle skip under paraplyen “SOLAS-konvensjonen”. Selv om selve koden er obligatorisk inneholder den anbefalinger og forlag som vi ser i ordbruken og formuleringer. Ord som “skal”, “burde”, og ” kan” betyr, når brukt i koden at bestemmelsene er henholdsvis – “obligatorisk”, “anbefalt” og “valgfri”.

Innholdet i koden:

  • Section 1      General provisions and definitions
  • Section 2     General loading, carriage and unloading precautions
  • Section 3     Safety of personnel and ship
  • Section 4     Assessment of acceptability of consignments for safe shipment
  • Section 5     Trimming procedures
  • Section 6     Methods of determining angle of repose
  • Section 7     Cargoes that may liquefy
  • Section 8     Test procedures for cargoes that may liquefy
  • Section 9     Materials possessing chemical hazards
  • Section 10     Carriage of solid bulk wastes
  • Section 11     Security provisions
  • Section 12     Stowage factor conversion tables
  • Section 13     References
  • Appendix 1     Individual schedules of solid bulk cargoes
  • Appendix 2    Laboratory test procedures, associated apparatus and standards
  • Appendix 3     Properties of solid bulk cargoes
  • Appendix 4     Index of solid bulk cargoes

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Section 1 – General provisions and definitions, Chapter VII – Carriage of dangerous goods

 Dangerous good in solid form in bulk, means any material, other than liquid or gas, consisting of a combination of particles, granules og any larger pieces of material, generallt uniform in composition, which is covered by the IMDG Code and is loaded directly into the cargo spaces of a ship without any intermediate form of containment, and includes suck materials loaded in a barge on a barge-carrying ship.

Each ship carrying dangerous goods in solid form in bulk shall have a special list or manifest setting forth the dengerous goods onboard and the location thereof. A detailed stowage plan, which identifies by class and sets out the location og all dangerous goods on board, may be used in place of such a special list or manifest. A copy of one of these documents shall be made available before departure to the person or organization designated by the port State authority.

Incompatible goods shall be segregated from one another.

dangerous good in solid form in bulk, which are liable to spontaneous heating or combustion, shall not be carried unless adequate precautions have been taken to minimize the likelihood of the ooutbreak of fire

Danerous goods in solid for in bulk, which give off dangerous vapours, shall be stowed in a well-ventilated cargo space

Section 2 – General loading, carriage and unloading precautions

Solid bulk cargoes have to be properly distributed throughout the ship to provide adequate stability and to ensure that the ship’s structure is never overstressed.

The master shall be able to calculate the stability for the anticipated worst condition during the voyage, as well as that on departure, and demonstrate that the stability is adequate.

As far as practicable, high-density cargoes shall be loaded in the lower hold cargo spaces.

Section 3 – Safety of personnel and ship

Unless expressly provided otherwise, when cargoes which may emit toxic gases are carried, the cargo spaces shall be provided with mechanical or natural ventilation; and, when cargoes which may emit flammable gases are carried, the cargo spaces shall be provided with mechanical ventilation.

If maintaining ventilation would endanger the ship or the cargo, it may be interrupted unless this would produce a risk of explosion.

Section 4 – Assessment of acceptability of consignments for safe shipment

Skip som faller inn under definisjonen i SOLAS kapittel VII skal ha et “Document of Compliance” når de frakter farlig, solid last i bulk.

Technical Form for CargoInformation

 Form for Cargo InformationSection 5 – Trimming procedures

Trimming a cargo reduces the likelihood of the cargo shifting and minimizes the air entering the cargo. Air entering the cargo could lead to spontaneous heating. To minimize these risks, cargoes shall be trimmed reasonably level, as necessary.

Non-Cohesive bulk cargoes having an angle of repose less than or equal to 30 degrees

These cargoes, which flow freely like grain, shall be carried according to the provisions applicable to the stowage of grain cargoes. The bulk density of the cargo shall be taken into account when determining:

1. The scantlings and securing arrangements of divisions and bin bulkheads; and

2. The stability effect of free cargo surface

Non-Cohesive bulk cargoes having an angle of repose greater than 30-35 degrees

These cargoes shall be trimmed according to the following criteria:

1. The uneveness of the cargo surface measured as the vertical distance between the highest and lowest levels of the cargo surface shall not excees B/10, where B is the beam of the ship in meters, with a maximum distance between highest and lowest cargo surface of 1.5 meters; or

2. Loading is carried out using trimming equipment approved by the competent authority.

Non-Cohesive bulk cargoes having an angle of repose greater than 35 degrees

These cargoes shall be trimmed according to the following criteria:

1. The uneveness of the cargo surface measured as the vertical distance between the highest and lowest levels of the cargo surface shall not excees B/10, where B is the beam of the ship in meters, with a maximum distance between highest and lowest cargo surface of 2 meters; or

2. Loading is carried out using trimming equipment approved by the competent authority.


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