New Canadian Air Decompression Tables

Abstract

The Defense and Civil Institute of Environmental Medicine (DCIEM) has recently developed a new set of decompression tables for compressed air diving for use by the Canadian Forces. Based on over 20 years of decompression research at DCIEM, these tables provide a more conservative approach to decompression procedures than those published by the United States Navy and the Royal Navy. Selected profiles were tested extensively using the Doppler ultrasonic bubble detector as an aid to assessing the severity of the decompression stress produced by these tables. These tables were tested in a hyperbaric chamber with wet-working divers in cold water at 10 Celsius as well as with dry-resting divers. No realistic decompression procedures can totally eliminate the occurrence of decompression sickness. However, these tables are believed to be safer than most existing tables. The tables, as developed by DCIEM, include Standard Ai, In-Water Oxygen Decompression, and Surface Decompression with Oxygen. In addition, tables for Repetitive Diving and Corrections for Altitude have been developed. Of interest to the recreational diver are three tables: Short Air Decompression. Repetitive Dive Factors and Allowable No-Decompression Limits for Repetitive Dives.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1985
Accession Number
ADA166983

Entities

People

  • Ron Nishi

Organizations

  • DRDC Toronto

Tags

DTIC Thesaurus Topics

  • Air
  • Altitude
  • Chambers
  • Cold Water
  • Compressed Air
  • Decompression
  • Decompression Sickness
  • Detectors
  • Friction Stir Welding
  • Government (Foreign)
  • Hyperbaric Chambers
  • Intervals
  • Sea Level
  • Standards
  • United States
  • Water

Readers

  • Systems Analysis and Design
  • Underwater engineering and Marine Technology.