Cylinder Procedure

Question 1

IC at incidents involving cylinders will be supported in the decision-making process by whom?

Answer 1

The HMEPO who will be mobilised to the incident.

Question 2

A HMEPO has recieved specific training in what?

Answer 2

Dealing with acetylene cylinders and hazard zone management

Question 3

At what temperatures do cylinders lose their tensile strength.

Answer 3

300 degrees for steel

200-250 for aluminum

Question 4

If any steel cylinder is believed to be substantially heated and at risk of failure, an initial hazard zone must be set up of how big?

Answer 4

200 m

Question 5

As soon as a cylinder is discovered in a fire, regardless of contents, what should the IC make every effort to do?

Answer 5

Extinguish any fire effecting the cylinder and apply a cooling spray directly onto any affecting cylinders.

Question 6

When working withing 25m of a heated cylinder that is not acetylene, crews should be in what level of PPE?

Answer 6

Full PPE and Breathing Apparatus

Question 7

When sending an informative message for cylinders that are not acetylene which temperature needs to be stated,

Answer 7

Only the highest teperature recorded.

Question 8

What should be included in an informative sent to control when cylinders are involved?

Answer 8

Actions taken
the number of evacuees
the HZ size and road closures
The RVP and approach route 
Tactical mode

Question 9

What initial action should be taken if an acetylene cylinder has been heated to a temperature above 300 degrees?

Answer 9

cylinder should be substantially cooled for at least an hour to reduce the risk of failure.

Question 10

What is the CAP test ?

Answer 10

Stopping the Cooling after 1 hour
monitor the cylinder with TIC and record temp
Observe for any violent steaming or rapid drying out of the cylinder surface
Leave cooling water off for 15 minutes

Question 11

When can the hazard zone be removed from an acetylene cylinder involved in a fire?

Answer 11

When it has passed the CAP test.

Question 12

What are composite cylinders usually used for?

Answer 12

LPG used for domestic use typically BBQs

Question 13

What colour is an acetylene cylinder?

Answer 13

Maroon

Question 14

If a disposable cylinder is believed to be involved in a fire, how should it be treated?

Answer 14

As if it were any other cylinder that is not acetylene.

Question 15

What is the hazard zone for a confirmed or suspected acetylene cylinder involved in a fire?

Answer 15

200m making use of all substantial cover

Question 16

How many times is the CAP test carried out?

Answer 16

4 times (approx and hour)

Question 17

If, at any time the cylinder is deemed to have failed the CAP test, what actions should be taken?

Answer 17

Cooling water should immediately be applied for 1 hour before commencing another CAP test.

Question 18

What do the 2 colours on a cylinder shoulder identify?

Answer 18

The contents and the hazards

Question 19

How should a steel cylinder be treated if involved in a fire?

Answer 19

Should be cooled until it reaches ambient temperature using the TIC

Question 20

Where a composite cylinder has been involved in a fire and has failed, what action should be taken?

Answer 20

The contents should be allowed to burn off before extinguishing the fire.

Question 21

When discovering a cylinder involved in a fire, crews should do what?

Answer 21

Lash off branches set on a cooling spray and then withdraw or use ground monitors if unable to lash off.

Question 22

At what distance should crews being wear BA when at an incident involving cylinders?

Answer 22

within 25m of a heated cylinder.

Question 23

At what temperature does an acetylene cylinder lose its tensile strength?

Answer 23

300 degrees

Question 24

How does a cylinder fail a CAP test

Answer 24

Where there is a presence of a hot spot on the cylinder wall with a TIC

Question 25

How long do the full hazards zones need to be in place for when carrying out a CAP test on an acetylene cylinder?

Answer 25

Until the CAP test has been passed

Question 26

If necessary, the IC should appoint a what to CL-ordinate the HZ when dealing with a cylinder involved in an incident?

Answer 26

Sector Commander

Question 27

Who should the IC make early contact with for assistance in establishing a Hazard Zone during incidents with cylinders?

Answer 27

The Police

Question 28

When evacuating MOP from a hazard zone involving cylinders, who should have priority?

Answer 28

Those in closest proximity to the incident

Question 29

When determining the extent of the initial HZ, who should the IC be in concurrence with and what should be utilised?

Answer 29

In concurrence with the HMEPO.

Utilising the acetylene/unidentified cylinder HZ overlay on the LFB geographia

Question 30

What should be included in a message to control when the HZ has been set up?

Answer 30

Detailing the perimeter roads that have been closed and identifying a RVP and marshalling area for oncoming appliances.

Question 31

Aluminium lines cylinders which have not already failed under heat should be treated as what?

Answer 31

Steel cylinders, cooled until ambient temperature is reached