Clasification Society Rulefinder 2020 - Version 9.33 - Fix
Statutory Documents - IMO Publications and Documents - International Codes - IMSBC Code – International Maritime Solid Bulk Cargoes Code – Resolution MSC.268(85) - Section 9 – Materials possessing chemical hazards - 9.3 Stowage and segregation requirements - 9.3.2 Special requirements

9.3.2 Special requirements

Parent topic: 9.3 Stowage and segregation requirements

9.3.2.1 Materials of classes 4.1, 4.2 and 4.3

  9.3.2.1.1 Materials of these classes shall be kept as cool and dry as reasonably practicable and, unless expressly provided otherwise in this Code, shall be stowed “away from” all sources of heat or ignition.

  9.3.2.1.2 Electrical fittings and cables shall 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 shall be sealed against the passage of gas and vapour.

  9.3.2.1.3 Cargoes liable to give off vapours or gases which can form an explosive mixture with air shall be stowed in a mechanically ventilated space.

  9.3.2.1.4 Prohibition of smoking in dangerous areas shall be enforced, and clearly legible “NO SMOKING” signs shall be displayed.

9.3.2.2 Materials of class 5.1

  9.3.2.2.1 Cargoes of this class shall be kept as cool and dry as reasonably practicable and, unless expressly provided otherwise in this Code, shall be stowed “away from” all sources of heat or ignition. They shall also be stowed “separated from” other combustible materials.

  9.3.2.2.2 Before loading cargoes of this class, particular attention shall be paid to the cleaning of the cargo spaces into which they will be loaded. As far as reasonably practicable, non-combustible securing and protecting materials shall be used and only a minimum of dry wooden dunnage shall be used.

  9.3.2.2.3 Precautions shall be taken to avoid the penetration of oxidizing materials into other cargo spaces, bilges and other spaces which may contain a combustible material.

9.3.2.3 Materials of class 7

  9.3.2.3.1 Cargo spaces used for the transport of Low Specific Activity Materials (LSA-I) and Surface Contaminated Objects (SCO-I) shall not be used for other cargoes until decontaminated by a qualified person so that the non-fixed contamination on any surface when averaged over an area of 300 cm2 does not exceed the following levels:

for beta and gamma emitters and the low-toxicity alpha emitters; natural uranium; natural thorium; uranium-235 or uranium-238; thorium-232; thorium-228 and thorium-230 when contained in ores, physical or chemical concentrates; radionuclides with a half-life of less than 10 days; and
for all other alpha emitters.

9.3.2.4 Materials of class 8 or materials having similar properties

  9.3.2.4.1 These cargoes shall be kept as dry as reasonably practicable.

  9.3.2.4.2 Prior to loading these cargoes attention shall be paid to the cleaning of the cargo spaces into which they will be loaded particularly to ensure that these spaces are dry.

  9.3.2.4.3 Penetration of these materials into other cargo spaces, bilges, wells and between the ceiling boards shall be prevented.

  9.3.2.4.4 Particular attention shall be paid to the cleaning of the cargo spaces after unloading, as residues of these cargoes may be highly corrosive to the ship's structure. Hosing down of the cargo spaces followed by careful drying shall be considered.

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