Minimum quantities of gas required offshore
- Recommended Practice
- Revision 1.1 - March 2021
This document provides comprehensive guidance on the minimum quantities of gas required for offshore diving operations, aimed at ensuring safety and compliance with industry standards.
Contents
Introduction
Surface Orientated Diving (Air, Nitrox or Heliox)
Closed Bell Diving
Conclusions
References
Glossary
Appendix 1 – Gas Calculations
Appendix 2 – Gas Requirements Check Sheets
Appendix 3 – Therapeutic Gas for Saturation Diving
Appendix 4 – IMCA Diving Gas Supply Incident Reporting System
Revision
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Rev. 1.1 - December 2023Quality check; headers, footers & document map updated; reference and glossary sections added; no change to content
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Rev. 1 - March 2021Updated with more comprehensive advice on appropriate minimum quantities for the many sources of gas required to support a diving project across a range of industry recognised diving methods. New guidance on minimum requirements for decompression, therapeutic, BIBS, calibration, metabolic, escape, LSP, & HRF gas stocks included. Three new appendices added.
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Rev. 0.1 - September 2020Text amended in Section 2.1 - 1) to clarify the minimum gas reserve requirements for surface orientated rescue dives
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Rev. - May 2012Updated and published as new IMCA document IMCA D050
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Rev. - July 1983Initial publication as AODC 014