Mvalues {scuba}R Documentation

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
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.

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).

Source

Bookspan (1995), p 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

[Package scuba version 1.1-6 Index]