DESIGN for surface supplied mixed gas diving systems

Summary

This document addresses various aspects of a surface supplied mixed gas diving system as utilised within the offshore diving industry.
The aim of the document is to provide a comprehensive reference source addressing the philosophy of what equipment and layout is required for a safe diving operation plus the examination, test and certification requirements necessary to meet agreed industry practice. This will apply anywhere in the
world being:

• outside the territorial waters of most countries (normally 12 miles or 19.25 kilometres from shore); or
• inside territorial waters where diving is being carried out in support of the oil and gas industry and the diving operation is not classed as civil, inland or inshore work.

This document is intended to assist the following, among others:

• personnel involved in diving operations;
• client staff involved in the maintenance or repair of plant and equipment;
• client and contractor representatives;
• vessel owners and marine crews involved with diving operations;
• all personnel involved in QA and safety.

IMCA has included recommendations in areas where there is a difficult balance between commercial considerations and safety implications. It is recognised, however, that safety must never be compromised for any reason.

Contents

• Part 1 – Guidance
• Introduction
• The Competent Person
• Responsibilities
• Planned Maintenance Systems (PMS)
• Key Features of this Document
• Completing the Document
• Part 2 – Detail Sheets

Version history

October 2024 Rev. 0.1 – Lifting terminology updated per IMCA Information Note nr. 1665

January 2006 – Initial publication