Flashcards in Cylinder Procedure (PN 376) Deck (50)
How do you spell asettlene?
A C E T Y L E N E
At a cylinder incident what is our first consideration?
Failure of a steel cylinder will result in fragments being thrown how far?
How big might a fireball of flammable gases be if a cylinder fails?
What is a BCGA CP?
British Compressed Gas Association Competent Person
What does CAP stand for?
Cylinder Assessment Process
Where is their a CAP aide memoir?
No 6 with BA board
BA must be worn within how many M’s of cylinder?
Which cylinders which are alight may be turned off?
Those alight from the valve group inlet/outlet, not those alight from the neck of the cylinder
What should a FF consider USING when approaching cylinders? And what are they likely to set up?
A Cooling Jet
How long must an Acetylene cylinder be cooled?
Min 1 hour then CAP tested
At what temperature does a steel cylinder lose its tensile strength?
300 degrees C
(200 - 250 for Aluminium)
How is an Acetylene cylinder designed to fail?
Ductile mode - along its length
When are cylinders at greatest risk of failure?
When there is direct flame impingement
What are the four types of cylinder construction?
Welded cylinders (2 steel parts welded together)
Drawn steel (1 part)
Composite Cylinders (resin and woven fabric sometimes wrapped around an aluminium lining
Gases can be? (4)
What 3 particular types of premise might be reasonably assumed to contain cylinders?
Why apply a cooling Jet?
Restores Tensile Strength
What 2 things must be considered with cylinders not yet involved?
Remove and protect with Jets
What 3 things may indicate that a cylinder has not been involved in fire?
Intact paper labels and plastic rings
Paint not blistered or blackened
** Composite cylinders are most commonly used for domestic purposes such as BBQs. What happens if a composite cylinder fails?
Intensifies the fire
Is the Hazard Zone the same as the Exclusion Zone?
What should Message include? (5)
.... x ..... kg ............ cylinders involved, cylinder procedure being implemented, RVP
What is the Cylinder Assessment Procedure?
Stop cooling after 1 hour
Monitor with TIC & record Temperature
Look for Violent Steaming
Leave for 15 minutes
Apply momentary spray and repeat x 4 (total of 1 hour)
If it fails at any time reapply cooling Jet for 1 hour and start again.
After the 1st CAP test who can reduce the HZ and why?
The HMEPO to carry out URGENT fire service work but 3 more tests must be completed.
What is Aircooling?
Cylinder left to stand (requires more frequent CAP tests
Does steam off a cylinder always indicate a problem?
No, on a warm day compare to other metal surfaces
If a ‘Hot spot’ is identified during CAP process what should be done?
Water Cooling recommenced
What colour denotes Acetylene?