ZINC OXIDE ENRICHED FLUE DUST

Description

This cargo, also named waelz oxide, is an odourless fine powder that aggregates into lumps. Its colour could be light brown or greyish yellow/greyish green. The main constituent is zinc oxide. Secondary constituents are lead oxides.

Characteristics

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.

The dust of the cargo is harmful and may cause long-term health effects.

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

Stowage and segregation

"Separated from" foodstuffs.

Hold cleanliness

Clean and dry as relevant to the hazards of the cargo.

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 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. As the density of the cargo is extremely high, 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

Exposure of persons to dust of the cargo shall be minimized. Appropriate precautions shall be taken to protect machinery and accommodation spaces from the dust of the cargo. Bilge wells shall be clean, dry and covered as appropriate to prevent ingress of the cargo. Persons who may be exposed to the dust of the cargo shall wear gloves, goggles or other equivalent dust eye-protection and dust filter masks. Those persons shall wear protective clothing, as necessary.

Ventilation

The cargo spaces carrying this cargo shall not be ventilated during voyage.

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

Prior to washing out the residues of this cargo, the decks and the cargo spaces shall be shovelled and swept clean, because washing out of this cargo is difficult.

Emergency procedures