#MHB CB TO 1BLOCKER CODE#

Concurrently with the cargo oxidation, the toxic gases generated by the residues of the flotation reagents will accumulate in the cargo holds 4 so that the carrying ship must be fitted with gas detectors. During the sea carriage, the copper concentrate will oxidize consuming the oxygen in the cargo holds. The residues of flotation reagents remain attached to the copper concentrate until it is loaded in the ship`s holds for sea carriage. Mount Garnet Copper Concentrate is extracted from copper ore with the use of flotation reagents. (c) the generation of toxic gases (MHB (WT)).

#MHB CB TO 1BLOCKER CODE#

Mount Garnet Copper Concentrate does not meet the criteria for inclusion in Hazard Class 4.2 from the IMDG Code but presents a self-heating risk when shipped in bulk so that the carrying ship must be fitted with a fixed gas fire extinguishing system.

After discharge of the cargo, the cargo residues must be washed away from the ship`s holds. The moisture content of Mount Garnet Copper Concentrate forms sulphurous acid which is corrosive to the ship`s steel structure so that the cargo holds should have adequate coating. (a) the corrosion risk (Class 8 in the IMDG Code). The chemical hazards of Mount Garnet Copper Concentrate are: The test results for the respective copper concentrate showed that it could liquefy if the moisture content exceeds the TML of 9.1% so that it can be categorised as Group A cargo 3 and that it possesses chemical hazards that meet the criteria for classification as Group B cargo, according to the criteria of the IMSBC Code, as dangerous goods in Hazard Class 8 (Corrosive substances), according to the criteria of the IMDG Code and as Materials Hazardous Only In Bulk, Self-heating solids and Solids that evolve toxic gas when wet, according to the criteria of the IMSBC Code. This schedule was included in the IMSBC Code in 2016 1 following a proposal submitted by the Australian delegation to IMO in 2014 2 relating to a copper concentrate shipped from Australia (Mount Garnet Copper Concentrate). Metal Sulphide Concentrates, Corrosive UN 1759 MHB (CR) вЂ“ Materials Hazardous Only In Bulk, Corrosive Solids вЂ“ refer to cargoes that are corrosive to metal and do not meet the criteria of the IMDG Code for inclusion in Class 8 (Corrosive substances).Дў. MHB (TX) вЂ“ Materials Hazardous Only In Bulk, Toxic Solids вЂ“ refer to cargoes that have toxic hazards to humans if inhaled when loaded, transported in bulk or unloaded and do not meet the criteria of the IMDG Code for inclusion in Hazard Class 6.1 (Toxic substances). MHB (SH) вЂ“ Materials Hazardous Only In Bulk, Self-Heating Solids вЂ“ refer to cargoes that self-heat when transported in bulk and do not meet the criteria of the IMDG Code for inclusion in Hazard Class 4.2 (Substances liable to spontaneous combustion). These cargoes possess chemical hazards that meet the criteria for classification as Group B cargoes and as MHB (SH), MHB (TX) and MHB (CR). These cargoes are categorised as Group A cargoes according to the criteria of the IMSBC Code because it may liquefy if shipped with a moisture content in excess of the transportable moisture limit. The term 'Metal Sulphide Concentrates' is a general description of worldwide application for metal concentrates such as copper concentrates, zinc concentrates and lead concentrates. Metal Sulphide Concentrates, Self-Heating UN 3190 Metal Sulphide Concentrates, Corrosive UN 1759 ДЈ.

Copper Concentrate is listed in the IMSBC Code under four schedules:Дў.

Mhb cb to 1blocker