(1) The buoyant smoke signal shall:
                        
                        
                        
                        
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                                 (i) be contained in a water-resistant casing;
                               
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                                 (ii) not ignite explosively when used in accordance
                                 with the manufacturer's operating instructions;
                               
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                                 (iii) have brief instructions or diagrams clearly
                                 illustrating the use of the buoyant smoke signal printed on its casing.
                               
 
                     
                     
                     
                        
                        
                         
                           (2) The buoyant smoke signal shall
                        
                        
                        
                        
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                                 (i) emit smoke of a highly visible colour at a
                                 uniform rate for a period of not less than 3 min when floating in
                                 calm water;
                               
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                                 (ii) not emit any flame during the entire smoke
                                 emission time;
                               
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                                 (iii) not be swamped in a seaway;
                               
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                                 (iv) continue to emit smoke when submerged in
                                 water for a period of 10 s under 100 mm of water.