Cylinder Procedure Flashcards
Who should be consulted at all cylinder incidents?
HMEPO
All cylinders are at greatest risk of failure when?
Subjected to direct flame impingement.
What can happen to a composite cylinder when involved in direct flame impingement?
It can become porous.
Where are composite cylinders predominately used?
Domestic purposes - garden bbq’s, patio heaters
What can acetylene cylinders do after the shell has been cooled?
Continue to self-heat
Where a cylinder contents cannot be confirmed what should it be treated as?
Acetylene
How far can steel fragments project if the cylinder fails?
200m
If a steel cylinder is at risk of failure what Hazard Zone should be implemented?
200m
What actions should be taken if a cylinder is discovered at a fire?
The IC should make every effort to extinguish any fire affecting the cylinder.
What should the IC consider if cylinders are not and have not been affected by fire?
Protecting them or move them.
What should be done with a composite cylinder that has failed in a fire?
The contents should be allowed to burn off before extinguishing.
Initial crews discovering cylinders should….?
Identify type, size, contents, location and amount without exposing themselves to unnecessary risk.
When can an IC determine that a 200m hazard is not or no longer necessary?
- The fire has been extinguished
- The cylinders are definitely not acetylene
- All cylinders present have been located
- The cylinders involved are receiving direct cooling
What should the cylinders be checked with to ensure ambient temperature?
Thermal Image Camera
What visual indicators can suggest a cylinder has not been involved in a fire?
- Paper labels and plastic rings intact
- The paintwork has not been blackened or blistered
- The supply hose pipes are undamaged
What information should be included in a informative when a hazard zone has been implemented?
- Actions taken
- Number of evacuees
- The HZ size and road closures
- The RVP and approach route
- The tactical mode
How long of substantial cooling will significantly reduce the likelihood of an acetylene cylinder failing?
1 hour
How should an acetylene cylinder be tested to ensure its return to ambient temperature?
Cylinder Assessment Process
What does the CAP consist of?
Stop the application of water after 1 hour
- Monitor cylinder with TIC and record temperature
- Observe for any violent steaming or rapid drying out
- Leave cooling water of for 15 mins
Apply a momentary spray of water to the cylinder then shut off.
If a hot spot is detected during a CAP what should be done?
Water cooling should be recommenced.
When the CAP is passed, what can be reduce/removed?
The hazard zone.
Can decomposition occur in an acetylene cylinder by mechanical shock alone?
No
Are acetylene cylinders that have been heated more sensitive to mechanical shock?
Yes - they should not be move or disturbed.
What should a leaking cylinder incident be treated as?
Hazardous material incident
At the conclusion of a cylinder incident who should the cylinder be handed over to?
A responsible person
