
Control measure
Isolate or limit liquids
Control measure knowledge
See Hazard - Flammable or explosive atmosphere; Control measure - Isolate gases, liquids and other flowing materials.
In addition, the key control measure will be to isolate the flow of the particular liquid. This may be possible in industrial-type confined spaces such as vats and silos. However, in confined spaces affected by weather, water distribution or sewerage, it may not always be possible, so personnel should be extra vigilant and take extra precautions. Using appropriate submersible or other pumping equipment to remove liquid or reduce levels should also be considered. The level of liquid in the confined space should be continually monitored while crews are committed.
Strategic actions
- Ensure that attending personnel are aware of the dangers presented by the inflow of liquids in confined space environments
- Ensure that those supervising confined space operations are able to recognise and inform attending crews of this hazard
Tactical actions
Identify the potential for liquids to enter confined spaces, including surface water
- Isolate all sources of liquid ingress to confined spaces where possible
- Implement suitable contingency arrangements where there is a risk of liquid ingress into a confined space
TRAINING SPECIFICATION
Knowledge and understanding
Control measure element | Learning outcome |
---|---|
Isolate or limit liquids |
Understand:
Refer to: Hazard – Flammable or explosive atmosphere; Control measure – Isolate or limit gases, liquids or other flowing materials |
Practical application
Control measure element | Learning outcome |
---|---|
Isolate or limit liquids |
Demonstrate the ability to:
Refer to: Hazard – Flammable or explosive atmosphere; Control measure – Isolate or limit gases, liquids or other flowing materials |
- Control measureAvoid entry
- Control measureImplement supervision arrangements