9.2.2.8 Class 8: Corrosives
These materials possess in their original state the common property of being able more or less severely to damage living tissue.
9.2.2.9 Class 9: Miscellaneous dangerous substances and articles
These materials present a hazard not covered by other classes.
9.2.3 Materials hazardous only in bulk (MHB)
These materials, when carried in bulk, present sufficient hazards to require specific precautions. For example, which are liable to reduce the oxygen content in a cargo space and those materials liable to self-heating or which become hazardous when wet are regarded as belonging to this group (see also 3.2.3, 3.2.4 and 3.2.5).
[9.3 Identification
9.3.1 The name or names which have been used for a cargo have been included in the entries for individual cargoes.
9.3.2 Where several names have been used one has been chosen as the Bulk Cargo Shipping name. This is the name given in uppercase in individual entry or the first name if more than one has been included in the entry.
9.3.3 The Bulk Cargo Shipping Name for a commodity that is classified in accordance with SOLAS Chapter VII, Regulation 2, is the Proper Shipping Name as used in the IMDG Code.
9.3.4 The Bulk Cargo Shipping Name should be used in the information given to a master before loading. The alternative names given in some entries should not be used.
9.3.5 The use of the Bulk Cargo Shipping Name will identify the carriage conditions necessary to safely carry a cargo. Correct identification is particularly important in incidents involving some cargoes to identify the emergency procedures necessary to deal with the incident.] <Netherlands 9 May>]
9.4 Stowage and segregation requirements
9.4.1 General requirements
9.4.1.1 The potential hazards of the cargoes listed in Group B and falling within the classification of 9.2.2 and 9.2.3 entail the need for segregation of incompatible materials.
9.4.1.2 In addition to general segregation as between whole classes of materials, there may be a need to segregate a particular material from others which would contribute to its hazard, In the case of segregation from combustible materials this should be understood not to include packaging material, ceiling or dunnage; the latter should in these circumstances be kept to a minimum.
9.4.1.3 For the purpose of segregating incompatible materials, the words "hold" and "compartment" are deemed to mean a cargo space enclosed by steel bulkheads or shell plating and by steel decks. The boundaries of such a space should be resistant to fire and liquid.
9.4.1.4 When two or more different incompatible materials are to be transported in bulk, the segregation between them should be at least equivalent to that described under "separated from" (see 9.3.4).
9.4.1.5 Where different grades of a material are transported in bulk in the same cargo space, the most stringent segregation provisions applicable to any of the different grades should apply to all of them.
9.4.1.6 When materials in bulk and dangerous goods in packaged form are to be transported, the segregation between them should be at least equivalent to that described in 9.4.3.
9.4.1.7 Incompatible materials should not be handled simultaneously. In particular, contamination of foodstuffs should be avoided.
Upon completion of loading one such cargo, the hatch covers of every cargo space containing it should be closed and the decks cleaned of residue before loading of other cargoes is commenced. When discharging, the same procedures should be followed.
9.4.1.8 To avoid contamination, a material which is indicated as toxic should be stowed "separated from" all foodstuffs (see 9.3.4).
9.4.1.9 Materials which may evolve toxic gases in sufficient quantities to affect health should not be stowed in those spaces from where such gases may penetrate into living quarters, work areas, or ventilation systems.
9.1.1.10 Materials which present corrosive hazards of such intensity as to affect either human tissue or the ship's structure should only be loaded after adequate precautions and protecting measures have been taken.
9.4.1.11 After discharge of a material for which toxicity is indicated, spaces used for its transport should be inspected for contamination. A space which has been contaminated should be properly cleaned and examined before being used for other cargoes, especially foodstuffs.
9.4.1.12 After discharge of cargoes, a close inspection should be made for any residue which should be removed before the ship is presented for other cargo; such an inspection is particularly important when materials having corrosive properties have been transported.
9.4.1.13 For cargoes for which in case of an emergency the hatches should be opened, these hatches should be kept free to be capable of being opened up.
9.4.2 Special requirements
9.4.2.1 Materials of classes 4.1, 4.2 and 4.3
9.4.2.1.1 Cargoes of these classes should be kept as cool and dry as reasonably practicable and should be stowed clear of all sources of heat or ignition.
9.4.2.1.2 Electrical fittings and cables should be in good condition and properly safeguarded against short circuits and sparking. Where a bulkhead is required to be suitable for segregation purposes, cable and conduit penetrations of the decks and bulkheads should be sealed against the passage of gas and vapour.
