| CEMENT COPPER
|
LEAD ORE RESIDUE
|
PYRITIC CINDERS
|
| COPPER CONCENTRATE
|
LEAD SILVER
|
SILVER LEAD
|
| IRON CONCENTRATE
|
|
|
| IRON CONCENTRATE
|
MANGANESE
|
SLIG (iron ore)
|
|
|
|
ZINC AND LEAD
|
| IRON CONCENTRATE
|
NEFELENE SYENITE
|
|
|
|
|
ZINC AND LEAD
|
| LEAD AND ZINC CALCINES
|
NICKEL CONCENTRATE
|
|
|
|
PENTAHYDRATE CRUDE
|
ZINC CONCENTRATE
|
| LEAD AND ZINC
MIDDLINGS
|
PYRITES
|
ZINC SINTER
|
| LEAD CONCENTRATE
|
PYRITIC ASHES (iron)
|
ZINC SLUDGE
|
See also the entries for metal sulphide concentrates.
Description
Mineral concentrates are refined ores in which valuable components have been
enriched by eliminating the bulk of waste materials.
Characteristics
| Physical properties
|
| Size
|
Angle of
repose
|
Bulk density
(kg/m3)
|
Stowage factor
(m3/t)
|
| Various
|
Not
applicable
|
1,754
to 3,030
|
0.33 to
0.57
|
| Hazard classification
|
| Class
|
Subsidiary
hazard(s)
|
MHB
|
Group
|
| Not
applicable
|
Not
applicable
|
Not
applicable
|
A
|
Hazard
The above materials may liquefy if shipped at a moisture content in excess
of their transportable moisture limit (TML). See sections 7 and 8 of this Code.
These cargoes will decompose burlap or canvas cloth covering bilge wells.
Continuous carriage of these cargoes may have detrimental structural effects over a long
period of time. These cargoes are non-combustible or have low fire risks.
Stowage and segregation
No special requirements.
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 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
This cargo shall be trimmed to ensure that the height difference between
peaks and troughs does not exceed 5% of the ship's breadth and that the cargo slopes
uniformly from the hatch boundaries to the bulkheads to avoid steep surfaces of cargo
that could collapse during voyage.
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
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
No special requirements.