Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN FAST
RESCUE BOATS
1-2 16
Life-jacket light shall:
- have a luminous intensity of not less than 0.75 cd in all directions of
the upper hemisphere;
- have a source of energy capable of providing a luminous intensity
of 0.75 cd for a period of at least 8 hours;
- be visible over as great a segment of the upper hemisphere as is
practicable when attached to a lifejacket;
- be of white color.
If the light referred above is a flashing light it shall, in addition:
- be provided with a manually operated switch; and
- flash at a rate of not less than 50 flashes and not more than 70
flashes per min with an effective luminous intensity of at least 0.75 cd.
* Inflatable lifejackets
- a lifejacket which depends on inflation for buoyancy shall have not
less than two separate compartments and comply with the all requirements for
ordinary lifejacket, and shall:
- inflate automatically on immersion, be provided with a device to
permit inflation by a single manual motion and be capable of being inflated by
mouth;
- in the event of loss of buoyancy in any one compartment be
capable of complying with the all requirements for ordinary lifejacket;
- shall have buoyancy which is not reduced by more than 5% after
24h submersion in fresh water after inflation by means of the automatic mechanism.
Fig. 2.6 Inflatable lifejacket
* Immersion suits
- It can be unpacked and donned without assistance within 2 min, taking
into account any associated clothing and a lifejacket if the immersion suit is to be
worn in conjunction with a lifejacket;