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Diving in close vicinity to mooring chain in a seaway or wind. Chain lifting under tension and dropping on diver in pinch zone Physical restraint from entering danger zone by way of limited umbilical length and underwater tending. Remain above chain at all times when near pinch zone if necessary to work in the area.
When possible, a lockout-tagout system is used to disable the hazard during diving operations, or the divers umbilical is restrained to prevent the diver from getting into the danger zone. This method is used when it is not practicable to shut down equipment, like the bow thrusters on a dynamically positioned diving support vessel, which must ...
a signal word – either Danger or Warning – where necessary hazard statements , indicating the nature and degree of the risks posed by the product precautionary statements , indicating how the product should be handled to minimize risks to the user (as well as to other people and the general environment)
The copper helmeted, free-flow, standard diving dress is the version which made commercial diving a viable occupation, and although still used in some regions, this heavy equipment has been superseded by lighter free-flow helmets, and to a large extent, lightweight demand helmets, band masks and full-face diving masks.
Professional diving teams are required to have emergence plans in place, and recreational divers are also expected to do so, to the extent appropriate to the dive plan. An alternative meaning, in the context of medicine, is a medical emergency which was initiated while diving, which may also be described as a diving medical emergency.
Personal protective equipment for IDLH conditions: pressure-demand self-contained breathing apparatus with a full facepiece. If the concentration of harmful substances is IDLH, the worker must use the most reliable respirators. Such respirators should not use cartridges or canister with the sorbent, as their lifetime is too poorly predicted. In ...
Montrell Johnson Jr.'s 5-yard touchdown run with 7:40 remaining in the fourth quarter gave Florida a 24-17 win over No. 9 Ole Miss on Saturday in Gainesville. Ole Miss had a chance to tie the game ...
Narcosis results from breathing gases under elevated pressure, and may be classified by the principal gas involved. The noble gases, except helium and probably neon, [2] as well as nitrogen, oxygen and hydrogen cause a decrement in mental function, but their effect on psychomotor function (processes affecting the coordination of sensory or cognitive processes and motor activity) varies widely.