Paragraph 9 Lock-Out Arrangements

be fitted with a Saturation Control Compartment or a Command Module adjacent to the Diver Lock-Out compartment from which control and monitoring of the chamber may be carried out;

be equipped with sufficient storage capacity to contain the appropriate breathing mixture to supply to persons occupying or working from the Lock-Out compartment;

be fitted with such equipment as may be necessary to ensure that each diver's body temperature is kept within safe limits;

contain such valves, gauges and other fittings as are necessary to control and monitor the pressures and the composition of the atmosphere within the Lock-Out compartment and to ascertain the external water pressures on the Lock-Out compartment. This equipment shall be duplicated in both the Command Module, the Saturation Control Compartment and the Diver Lock-Out compartment; except that the control valves shall only be operable from the Control Compartment.

be equipped with a two way oral communication system whereby contact may be maintained between personnel in the Command Module or Saturation Control Compartment and the divers inside and outside the compartment under all operating conditions; the system shall be fitted with an auxiliary power source for use in emergency.

be equipped with means whereby each diver using the compartment is able to enter and leave without difficulty;

contain adequate first-aid facilities and lifting equipment sufficient to enable an unconscious or injured diver to be hoisted into the compartment by a person located therein;

be capable, where applicable, of allowing a person to transfer under pressure between the compartment and a compression chamber;

be equipped with doors which act as pressure seals and which may where appropriate be opened from either side;

contain adequate re-generation equipment to maintain a safe and breathable atmosphere in the compartment. The equipment shall be capable of functioning whether or not the main power source of the submersible craft is operable;

at all times carry food and water;

be equipped with a means of thermal protection for the divers;

be equipped with a medical lock or equivalent arrangements of adequate size which can be used at pressures equivalent to the maximum operating depth of the Diver Lock-Out compartment.