Bauxite Fines
BAUXITE FINES
Schedule source MSC.539(107), Annex 9, Appendix 1, IMSBC Code Amendment 07-23 · pages 106, 107
Description
A reddish-brown to brownish-yellow clay-like and earthy mineral. Insoluble in water.
Hazard
This cargo may liquefy if shipped at a moisture content in excess of its transportable moisture limit (TML). See sections 7 and 8 of IMSBC Code. This cargo may suffer instability due to moisture content resulting in dynamic separation and formation of a liquid slurry (water and fine solids) above the solid material, resulting in a free surface effect which may significantly affect the ship’s stability. This cargo is not liable to undergo dynamic separation when the cargo is shipped below its TML. This cargo is non-combustible or has a low fire risk.
Stowage and Segregation
No special requirements.
Hold Cleanliness
No special requirements. * Refer to 1.6 of appendix 2 to IMSBC Code.
Weather Precautions
When a cargo is carried in a ship other than a ship complying with the requirements in 7.3.2 of this Code, the following provisions shall be complied with: .1 the moisture content of the cargo shall be kept less than its TML during loading operations and the voyage; .2 unless expressly provided otherwise in this individual schedule, the cargo shall not be handled during precipitation; .3 unless expressly provided otherwise in this individual schedule, during handling of the cargo, all non-working hatches of the cargo spaces into which the cargo is loaded, or to be loaded, shall be closed; .4 the cargo may be handled during precipitation under the conditions stated in the procedures required in 4.3.3 of IMSBC Code; and .5 the cargo in a cargo space may be discharged during precipitation provided that the total amount of the cargo in the cargo space is to be discharged in the port.
Loading
Trim in accordance with the relevant provisions required under sections 4 and 5 of IMSBC Code. When the stowage factor of this cargo is equal to or less than 0.56 m3/t, the tank top may be overstressed unless the cargo is evenly spread across the tank top to equalize the weight distribution. Due consideration shall be given to ensure that the tank top is not overstressed during the voyage and during loading by a pile of the cargo.
Precautions
Bilge wells shall be clean, dry and covered as appropriate, to prevent ingress of the cargo. The bilge system of a cargo space to which this cargo is to be loaded shall be tested to ensure it is working.
Ventilation
No special requirements.
Carriage
The appearance of the surface of this cargo shall be checked regularly, including at least daily visual inspections where condition permits, during the voyage. If free water or a liquid slurry above the cargo or fluid state of the cargo is observed, including the flattening of the cargo, during the voyage, the master shall take appropriate actions to prevent cargo shifting, loss of stability due to free surface effect and potential capsize of the ship, and give consideration to seeking emergency entry into a place of refuge. Cargo hold bilges shall be sounded at regular intervals and pumped out, as necessary. An atypical motion of the ship (wobbling) may also be indicative of cargo instability and the master shall consider appropriate action.
Discharge
No special requirements.
Clean-up
No special requirements.
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