Cylinder Procedure

Question 1

Who should be consulted at all cylinder incidents?

Answer 1

HMEPO

Question 2

All cylinders are at greatest risk of failure when?

Answer 2

Subjected to direct flame impingement.

Question 3

What can happen to a composite cylinder when involved in direct flame impingement?

Answer 3

It can become porous.

Question 4

Where are composite cylinders predominately used?

Answer 4

Domestic purposes - garden bbq’s, patio heaters

Question 5

What can acetylene cylinders do after the shell has been cooled?

Answer 5

Continue to self-heat

Question 6

Where a cylinder contents cannot be confirmed what should it be treated as?

Answer 6

Acetylene

Question 7

How far can steel fragments project if the cylinder fails?

Answer 7

200m

Question 8

If a steel cylinder is at risk of failure what Hazard Zone should be implemented?

Answer 8

200m

Question 9

What actions should be taken if a cylinder is discovered at a fire?

Answer 9

The IC should make every effort to extinguish any fire affecting the cylinder.

Question 10

What should the IC consider if cylinders are not and have not been affected by fire?

Answer 10

Protecting them or move them.

Question 11

What should be done with a composite cylinder that has failed in a fire?

Answer 11

The contents should be allowed to burn off before extinguishing.

Question 12

Initial crews discovering cylinders should….?

Answer 12

Identify type, size, contents, location and amount without exposing themselves to unnecessary risk.

Question 13

When can an IC determine that a 200m hazard is not or no longer necessary?

Answer 13

• The fire has been extinguished
• The cylinders are definitely not acetylene
• All cylinders present have been located
• The cylinders involved are receiving direct cooling

Question 14

What should the cylinders be checked with to ensure ambient temperature?

Answer 14

Thermal Image Camera

Question 15

What visual indicators can suggest a cylinder has not been involved in a fire?

Answer 15

• Paper labels and plastic rings intact
• The paintwork has not been blackened or blistered
• The supply hose pipes are undamaged

Question 16

What information should be included in a informative when a hazard zone has been implemented?

Answer 16

• Actions taken
• Number of evacuees
• The HZ size and road closures
• The RVP and approach route
• The tactical mode

Question 17

How long of substantial cooling will significantly reduce the likelihood of an acetylene cylinder failing?

Answer 17

1 hour

Question 18

How should an acetylene cylinder be tested to ensure its return to ambient temperature?

Answer 18

Cylinder Assessment Process

Question 19

What does the CAP consist of?

Answer 19

Stop the application of water after 1 hour
- Monitor cylinder with TIC and record temperature
- Observe for any violent steaming or rapid drying out
- Leave cooling water of for 15 mins
Apply a momentary spray of water to the cylinder then shut off.

Question 20

If a hot spot is detected during a CAP what should be done?

Answer 20

Water cooling should be recommenced.

Question 21

When the CAP is passed, what can be reduce/removed?

Answer 21

The hazard zone.

Question 22

Can decomposition occur in an acetylene cylinder by mechanical shock alone?

Answer 22

No

Question 23

Are acetylene cylinders that have been heated more sensitive to mechanical shock?

Answer 23

Yes - they should not be move or disturbed.

Question 24

What should a leaking cylinder incident be treated as?

Answer 24

Hazardous material incident

Question 25

At the conclusion of a cylinder incident who should the cylinder be handed over to?

Answer 25

A responsible person