CALCIUM FLUORIDE, CALCIUM SULPHATE, CALCIUM CARBONATE MIXTURE
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Statutory Documents - IMO Publications and Documents - International Codes - IMSBC Code – International Maritime Solid Bulk Cargoes Code – Resolution MSC.268(85) - Appendix 1 – Individual Schedules of Solid Bulk Cargoes - CALCIUM FLUORIDE, CALCIUM SULPHATE, CALCIUM CARBONATE MIXTURE

CALCIUM FLUORIDE, CALCIUM SULPHATE, CALCIUM CARBONATE MIXTURE

Description

The cargo contains 35% to 55% calcium fluoride, 18% to 30% calcium sulphate and 10% to 20% calcium carbonate.

This cargo is a fine white-light grey powder aggregated in lumps, and is transported as filter cakes. This cargo is insoluble in water.

Characteristics

Physical properties
Size Angle of repose Bulk density (kg/m3) Stowage factor (m3/t)
Up to 50 mm Not applicable 1,100 to 2,500 0.40 to 0.91
Hazard classification
Class Subsidiary hazard(s) MHB Group
Not applicable Not applicable Not applicable A

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 this Code.

This cargo is non-combustible or has a low fire risk.

Stowage and segregation

"Separated from" foodstuffs and all class 8 acids.

Hold cleanliness

No special requirements.

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 subsection 4.3.3 of this 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 this 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

Appropriate precautions shall be taken to protect machinery and accommodation spaces from the dust of the cargo. Bilge wells of the cargo spaces shall be protected from ingress of the cargo. Due consideration shall be given to protect equipment from the dust of the cargo. Persons who may be exposed to the dust of the cargo shall wear goggles or other equivalent dust eye-protection and dust filter masks. Those persons shall wear protective clothing, as necessary.

Ventilation

No special requirements.

Carriage

The appearance of the surface of this cargo shall be checked regularly during the voyage. If free water above the cargo or fluid state of the cargo is observed during the voyage, the master shall take appropriate actions to prevent cargo shifting and potential capsize of the ship, and give consideration to seeking emergency entry into a place of refuge.

Discharge

No special requirements.

Clean-up

No special requirements.

Parent topic: Appendix 1 – Individual Schedules of Solid Bulk Cargoes
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