Cylinder Procedure Flashcards
What is the definition of a cylinder
A cylinder can be defined as any vessel containing a gas or a liquid under pressure
Cylinders what does HMEPO stand for
Hazardous materials and environmental protection officer
Cylinders what does BCGA-CP stand for
British compressed gas association competent person
Cylinders at what temperature does steel lose its tensile strength
Steel 300°C
Cylinders at what temperature does Aluminium lose it’s tensile strength
200°C - 250°C
Cylinders when a composite cylinder is involved in direct flame impingement the cylinder may become porous how would this be evident in the fire
A substantial increase in the size of the fire as it will be fed by the gas from inside the cylinder
In a situation where a composite cylinder is involved in direct flame impingement but the cylinder has not yet become porous can the fire be extinguish and the cylinder cool
Yes
however caution should be taken when removing any composite cylinder has a resin may have become weakened
Cylinder a composite cylinder used for other applications other than domestic purposes should be considered as having what type of inner lining
Aluminium
Cylinders if a cylinder could potentially be Acetylene but it’s not possible to confirm the content then it must be treated as what
Acetylene
What is the initial hazard zone for any steel cylinder that has the potential to fail
200 m
Cylinders contain gases which pose many and varied risks cylinders which are found to be leaking should be treated as what
Hazardous material incident.
HAZMATS
Cylinders initial actions the incident commander should make every effort to extinguish any fire affecting the cylinder and apply what
A cooling spray directly onto any affected cylinders
Cylinders the incident commander should consider protecting the cylinders if a cylinder has not been affected prior to arrival what must the ic do
Protect the cylinders by the use of a covering jet or have the cylinders moved to a safe location
When a composite cylinder is involved and has failed what should the content be allowed to do
Burn off before extinguishing the fire
If the incident commander can determine that no immediate danger of a cylinder failing they do not have to implement a 200 meter hazard zone what for things should be part of the risk assessment
The fire has been extinguished.
The cylinders are definitely not Acetylene
All the cylinders present have been located.
The cylinders involved are receiving direct cooling.
After extinguishing the fire cylinders should be cooled to ambient temperature in the case of Acetylene or an unidentified cylinder this cooling should last for how long
One hour
Cylinders when crews are working within the 25 meter hazard zone of a heated cylinder what is the minimum PPE
Full PPE including BA should be worn
What are three indicators that a cylinder has not been involved in a fire
Paper labels and plastic rings are intact.
The paint work has not been blackened or blistered.
The supply hose pipes are undamaged.
Cylinders crews working within what distance of a heated cylinder should wear BA
25 m
Acetylene cylinders should be cooled in situ for a period of one hour can the cylinders be moved at this stage
No
Cylinders : The wetting test in conjunction with a thermal image camera is known as the CAP test what does this stand for
Cylinder assessment process
How many times in one hour should the cylinder assessment process be completed
Four times.
Every 15 minutes %%%%%%
Cylinders how long should the water cooling be left off the cylinder whilst checking with the thermal image camera before carrying out a wetting test
15 minutes
Cylinders if air cooling is considered necessary how long should the cylinder be allowed to self cool initially
One hour
Cylinder is alight at the valve group what is the minimum PPE and minimum weight of attack to turn off a valve
Full PPE BA.
45 mm jet
Cylinders typically how long from the commencement of the cooling process can the hazard zone be removed
Two hours
Cylinders if it is not possible to shut down a leaking cylinder who should be requested to attend the incident
HMEPO.
Rapid response team.
Fire rescue unit.
To monitor the atmosphere using detection identification and monitoring equipment. D I M
Cylinders : handing over of the incident ,where there is any doubt about handing the cylinder over who can advise or arrange collection
The HMEPO can arrange collection via the BCGA-CP
Cylinder assessment process is conducted over one hour after cooling the cylinder for one hour what is the process for assessing the cylinder
Stop the application of cooling water after one hour.
Monitor the cylinder with a thermal image camera and record the temperature.
Observe for any violent steaming or rapid drying out of the cylinder surface.
Leave cooling water off for 15 minutes.
Apply a momentary spray of water to the cylinder then shut off.
Complete the process four times every 15 minutes.
The process is complete after one hour
Cylinders : when a hazard zone has been established and a member of the public refuses to leave their premises who should we pass their details to
The senior police officer at the scene
The competent person for cylinders is available via the emergency contact numbers stored with London Fire Brigade who holds these numbers
Resource management centre. RMC.
The cylinder handover form on the command unit.
Can composite cylinders contain Acetylene
No
Disposable cylinders i.e. helium cylinders what is the procedure to dispose of them safely
The guidance recommends emptying the cylinder by operating the valve until no further gas is released then use a sharp implement to strike out the burst disk on the shoulder of the cylinder
Cylinders where are you most likely to find composite cylinders
Domestic use in gardens or sheds %%%%
