DESIGN for surface supplied mixed gas diving systems
- Recommended Practice
- Revision 1 - June 2026
This document provides guidance on the design, inspection, and certification of surface supplied mixed gas diving systems, emphasising the importance of adhering to IMCA's recommended practices and legal obligations.
Contents
Part 1: Requirements
Introduction
The competent person
Responsibilities
Planned maintenance system (PMS)
Key features of this document
Completing the document
References
Part 2: Detail sheets
Record of inspections
General safety
Dive control
Twinlock chamber
Diver launch and recovery system
Wet bell
Wet bell main umbilical
Diver heating system
Divers’ umbilicals
Divers’ personal equipment
Compressors
HP air and gas storage
Revision
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Rev. 0.2 - June 2026Correction of distances in Section 1.4 (first bullet point)
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Rev. 0.1 - October 2024Lifting terminology updated per IMCA Information Note nr. 1665
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Rev. - January 2006Initial publication
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Rev. 1 -Update of document following resolution of review comments