MSC 85/26/Add.2 ANNEX 3 RESOLUTION MSC.268(85) - US Coast ...

MSC 85/26/Add.2ANNEX 3Page 419.3.2.1.3 Cargoes liable to give off vapours or gases which can form an explosive mixture withair 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 5.19.3.2.2.1 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 ofheat 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 cleaningof 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 drywooden dunnage shall be used.9.3.2.2.3 Precautions shall be taken to avoid the penetration of oxidizing materials into othercargo spaces, bilges and other spaces which may contain a combustible material.9.3.2.3 Materials of class 79.3.2.3.1 Cargo spaces used for the transport of Low Specific Activity Materials (LSA-I) andSurface Contaminated Objects (SCO-I) shall not be used for other cargoes until decontaminatedby a qualified person so that the non-fixed contamination on any surface when averaged over anarea of 300 cm 2 does not exceed the following levels:4 Bq/cm 2 (10 -4 µCi/cm 2 ) 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 ofless than 10 days; and0.4 Bq/cm 2 (10 -5 µCi/cm 2 ) for all other alpha emitters.9.3.2.4 Materials of class 8 or materials having similar properties9.3.2.4.1 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 cargospaces 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 theceiling boards shall be prevented.9.3.2.4.4 Particular attention shall be paid to the cleaning of the cargo spaces after unloading, asresidues of these cargoes may be highly corrosive to the ship’s structure. Hosing down of thecargo spaces followed by careful drying shall be considered.I:\MSC\85\26-Add-2.doc