Cylinder Procedure Flashcards
Who is mobilised to all acetylene Cylinder incidents?
HMEPO
At what temp does a steel cylinder lose its tensile strength?
300° C
At what temperature range does an aluminium cylinder lose its tensile strength?
Between 200 - 250°C
How far can any steel cylinder that fails project fragments?
200m
Potentially what size fireball can omit from a failed cylinder?
A 25m fireball
Acetylene cylinders are designed to fail in which way?
In ductile mode and split along their entire length. However if a partial split occurs the cylinder can propel itself up to 200m.
Cylinders that are found to be leaking should be treated as?
A hazardous materials incident.
What on route actions should an IC consider?
A safe route of approach
The possibility of Acetylene cylinders being involved.
The use of the hazard overlay.
Surrounding risks if a HZ is implemented, railway lines, main roads etc.
An early RVP.
Additional information.
If a composite cylinder is involved and has failed what should you do before extinguishing the fire?
The contents should be allowed to burn off and surrounding risks should be protected.
Crews working within 25m should be rigged in?
Full PPE and BA at all times.
What does the C.A.P consist of?
Record temperature on T.I.C
Check for rapid drying or violent streaming of water
Leave for 15 minutes
(if cylinder temp has raised cool for a further hour)
Repeat process 4 times for a total of 1 hour
What are the visual signs that a cylinder has been involved in direct flame impingement ?
Blistered paint
Burnt labels, rings, rubber hoses.
Any unconfirmed cylinder must be treated as what?
Acetylene
Information messages must include?
Actions taken, number of evacuees, size of hazard zone and road closures, RVP and tactical mode.
If branches are unable to be tied off what should the IC consider using?
Ground Monitors.
