Mariner 275 Regular

General Requirements for Inflatable Lifejackets

• Support in the water a fully clothed person.

• In less than five seconds turn an unconscious person in the water from any position to one where the mouth is at least 120 mm clear of the water with the body inclined backwards at an angle of not less than 20° from the vertical. A child lifejacket is only required to lift the mouth clear of the water by an appropriate distance.

• Not have its buoyancy reduced by more than 5% after twenty-four hours submerged in fresh water.

• Be so designed that someone unfamiliar with the lifejacket can don it unaided within one minute (small children may be assisted when donning the lifejacket). It must be clearly capable of being donned only the correct way, and, as far as practicable, may not be donned incorrectly. It must be comfortable to wear.

• Allow the wearer to jump from at least 4.5m into water without injury, and without dislodging or damaging the lifejacket.

• Not continue burning or melting after being totally enveloped in a fire for a period of two seconds.

• In the case of a child lifejacket, be marked with the height or weight range for which the lifejacket is applicable.

• Be fitted with a whistle.

• Be of a highly visible colour (in the case of inflatable lifejackets the colour requirement refers to the inflated lifejacket only).

• Not have less than two separate compartments.

• Inflate automatically on immersion, be provided with a device to manually initiate inflation, and be capable of being inflated by mouth.

• Lifejackets for Totally Enclosed & Free Fall Lifeboats Lifejackets used in totally enclosed and free fall lifeboats must not impede entry to the lifeboat, seating arrangements, use of the seat belts and operation of the lifeboat or occupant safety. In a free-fall lifeboat only inflatable lifejackets are permitted.