Performance
2.3 A buoyant smoke signal shall:
2.3.1 emit smoke of a highly visible colour at a uniform rate for a period of not less than 3 minutes when floating in calm water;
2.3.2 not emit any flame during the entire smoke emission time;
2.3.3 not be swamped in a seaway; and
2.3.4 continue to emit smoke when submerged in water for a period of 10 seconds under 100 mm of water.