Cylinder Procedure

Question 1

What is the definition of a cylinder

Answer 1

A cylinder can be defined as any vessel containing a gas or a liquid under pressure

Question 2

Cylinders what does HMEPO stand for

Answer 2

Hazardous materials and environmental protection officer

Question 3

Cylinders what does BCGA-CP stand for

Answer 3

British compressed gas association competent person

Question 4

Cylinders at what temperature does steel lose its tensile strength

Answer 4

Steel 300°C

Question 5

Cylinders at what temperature does Aluminium lose it’s tensile strength

Answer 5

200°C - 250°C

Question 6

Cylinders when a composite cylinder is involved in direct flame impingement the cylinder may become porous how would this be evident in the fire

Answer 6

A substantial increase in the size of the fire as it will be fed by the gas from inside the cylinder

Question 7

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

Answer 7

Yes

however caution should be taken when removing any composite cylinder has a resin may have become weakened

Question 8

Cylinder a composite cylinder used for other applications other than domestic purposes should be considered as having what type of inner lining

Answer 8

Aluminium

Question 9

Cylinders if a cylinder could potentially be Acetylene but it’s not possible to confirm the content then it must be treated as what

Answer 9

Acetylene

Question 10

What is the initial hazard zone for any steel cylinder that has the potential to fail

Answer 10

200 m

Question 11

Cylinders contain gases which pose many and varied risks cylinders which are found to be leaking should be treated as what

Answer 11

Hazardous material incident.

HAZMATS

Question 12

Cylinders initial actions the incident commander should make every effort to extinguish any fire affecting the cylinder and apply what

Answer 12

A cooling spray directly onto any affected cylinders

Question 13

Cylinders the incident commander should consider protecting the cylinders if a cylinder has not been affected prior to arrival what must the ic do

Answer 13

Protect the cylinders by the use of a covering jet or have the cylinders moved to a safe location

Question 14

When a composite cylinder is involved and has failed what should the content be allowed to do

Answer 14

Burn off before extinguishing the fire

Question 15

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

Answer 15

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.

Question 16

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

Answer 16

One hour

Question 17

Cylinders when crews are working within the 25 meter hazard zone of a heated cylinder what is the minimum PPE

Answer 17

Full PPE including BA should be worn

Question 18

What are three indicators that a cylinder has not been involved in a fire

Answer 18

Paper labels and plastic rings are intact.
The paint work has not been blackened or blistered.
The supply hose pipes are undamaged.

Question 19

Cylinders crews working within what distance of a heated cylinder should wear BA

Answer 19

25 m

Question 20

Acetylene cylinders should be cooled in situ for a period of one hour can the cylinders be moved at this stage

Answer 20

No

Question 21

Cylinders : The wetting test in conjunction with a thermal image camera is known as the CAP test what does this stand for

Answer 21

Cylinder assessment process

Question 22

How many times in one hour should the cylinder assessment process be completed

Answer 22

Four times.

Every 15 minutes %%%%%%

Question 23

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

Answer 23

15 minutes

Question 24

Cylinders if air cooling is considered necessary how long should the cylinder be allowed to self cool initially

Answer 24

One hour

Question 25

Cylinder is alight at the valve group what is the minimum PPE and minimum weight of attack to turn off a valve

Answer 25

Full PPE BA.

45 mm jet

Question 26

Cylinders typically how long from the commencement of the cooling process can the hazard zone be removed

Answer 26

Two hours

Question 27

Cylinders if it is not possible to shut down a leaking cylinder who should be requested to attend the incident

Answer 27

HMEPO.
Rapid response team.
Fire rescue unit.
To monitor the atmosphere using detection identification and monitoring equipment. D I M

Question 28

Cylinders : handing over of the incident ,where there is any doubt about handing the cylinder over who can advise or arrange collection

Answer 28

The HMEPO can arrange collection via the BCGA-CP

Question 29

Cylinder assessment process is conducted over one hour after cooling the cylinder for one hour what is the process for assessing the cylinder

Answer 29

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

Question 30

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

Answer 30

The senior police officer at the scene

Question 31

The competent person for cylinders is available via the emergency contact numbers stored with London Fire Brigade who holds these numbers

Answer 31

Resource management centre. RMC.

The cylinder handover form on the command unit.

Question 32

Can composite cylinders contain Acetylene

Answer 32

No

Question 33

Disposable cylinders i.e. helium cylinders what is the procedure to dispose of them safely

Answer 33

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

Question 34

Cylinders where are you most likely to find composite cylinders

Answer 34

Domestic use in gardens or sheds %%%%