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The RDP was developed by DSAT and was the first dive table developed exclusively for no-stop recreational diving. [2] There are four types of RDPs: the original table version first introduced in 1988 along with a circular slide rule version called The Wheel, followed by the eRDP, an electronic version introduced in 2005 and the eRDPML, an ...
Template {{APHD}} is used to create augmented packet header diagrams. Template parameters [Edit template data] Parameter Description Type Status table header 1 (start) Generates the header. Example start String suggested offset 1 (numerical) If this parameter is numerical then it is interpreted as the octet offset of this 4 octet-sized table row, which is displayed in the left header. The bit ...
The profile of a dive is the variation of depth, measured as ambient pressure, over time during that dive. The actual location of the diver at any time is generally not considered, as the dive profile is a tool for dive planning and decompression status calculation.
Risk assessment is mandated in professional diving, where it is the specific responsibility of the diving supervisor, [7] [3] [1] and is expected in recreational diving, where it is generally the responsibility of the individual diver, though the expectations of the level of risk assessment are highly variable, and are associated with the level ...
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The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been derived. The original C&R tables used a classic multiple independent parallel compartment model based on the work of John Scott Haldane in England in the early 20th century, using a critical ratio exponential ingassing and outgassing model.
For example, due to the long swims involved in California shore diving, divers use snorkels until they reach a good start point for a dive to maximise air supply for the actual dive. [ 96 ] A snorkel can be a useful substitute for a pocket mask for in-water EAR , a diving accident victim can be towed and have rescue breathing administered ...
Example: Choose a gas mixture suitable for a bounce dive to 50 metres, where P O 2 must be limited to 1.4 bar and equivalent narcotic depth to 30 metres: Pressure at 50 m depth = 6 bar Required P O 2 = 1.4 bar : Oxygen fraction F O 2 = 1.4/6 = 0.23 = 23% Required equivalent narcotic depth (END) = 30 m Equivalent air pressure at 30 m = 4 bar