Background
In the event of a pressurised hose or hose fitting failure, the escaping gas or liquid causes a jet reaction force which induces a hose whip effect. This has the potential to cause severe injury to personnel and damage to equipment.

Aims
The main aims of this document are to provide information and guidance to IMCA Diving Division members on:

• The risk of harm due to a failed hose or fitting from the hose end flailing uncontrollably whilst expelling its stored energy (gas or liquid).
• How to identify and select the correct restraint for the hose or fittings at the Maximum Working Pressure (MWP) of the hose in service.
• Additional procedures that may be used to mitigate and control the risk from a hose failure.

Although this guidance has been produced for Diving Division members, it is likely to be of interest to members in the other IMCA Divisions.