scuba (version 1.1-9)

Mvalues: M-values for Standard Haldane Models

Description

Contains the surfacing M-values (maximum surfacing nitrogen tensions) for several Haldane-type decompression models.

format

A list with two components called ata and fsw, giving the surfacing M-values in atmospheres absolute (ata) or in equivalent feet of seawater (fsw) respectively. Each component is a list of three vectors, named ll{ Haldane J.S. Haldane's original model USN original US Navy model DSAT model for DSAT (PADI) tables } containing the M-values for the tissues in the relevant model, listed from fastest to slowest. The tissues correspond to the tissues in the dataset Halftimes.

source

Bookspan (1995), p 23.

Details

The surfacing M-value (in the terminology of Workman) is the maximum partial pressure of inert gas in a tissue compartment which would be tolerated without symptoms of decompression sickness at an ambient pressure of 1 atmosphere.

This dataset gives the surfacing M-values for nitrogen in each tissue, in several of the classical decompression models, as tabulated by Bookspan (1995, page 23).

References

Bookspan, J. (1995) Diving physiology in plain English. Undersea and Hyperbaric Medicine Society, Kensington, Maryland (USA). ISBN 0-930406-13-3.

See Also

Halftimes

Examples

data(Mvalues)
  Mvalues$fsw$USN
  Mvalues$ata$DSAT