TS EN ISO 24807

TS EN ISO 24807 is a service standard dealing with requirements for rebreather diver training programmes for decompression diving to 100 m using a breathing mixture containing helium. It also sets evaluation criteria for the competencies linked to that training and defines the conditions under which the service is delivered, in addition to the general requirements for recreational diving services given in ISO 24803.

What makes rebreather training technically distinct

A rebreather recycles part of the breathing gas instead of exhausting it completely, which changes the technical focus of training compared with open-circuit diving. Gas management, CO2 control, oxygen monitoring and the behaviour of the breathing loop become central topics. At greater depths, decompression planning and the use of helium-containing breathing mixes are also part of the operational context. In general technical terms, this standard addresses advanced recreational training where the diver must be competent not only in equipment use, but also in procedures specific to deep, staged-decompression diving.

What this document covers

• Training programme requirements for rebreather dives to 100 m
• Dives involving mandatory decompression stops
• Training using a helium-containing breathing mixture
• Criteria for assessing the required competencies
• Training provided in addition to the general recreational diving service requirements of ISO 24803

This listing appears as a withdrawn edition of TS EN ISO 24807. For that reason, it is best understood as a reference point for the technical structure of advanced recreational rebreather education, especially the relationship between deep diving practice, gas-mix management and decompression competence.