A12 - Incidents involving cylinders Flashcards
A12 - On arrival at all incidents involving cylinders an initial hazard zone of how many metres should be identified?
200m
A12 - True or false; A purely mechanical shock without elevated temperature to an acetylene cylinder, such as a drop from a lorry, will neither start decomposition nor ignite the gas.
True
A12 - which is lighter, acetylene or air
Acetylene
A12 - How long does cylinder need to remain cool to be handed over if not safe to do so beforehand?
24 hours
A12 - What indicators should you look for to see if cylinders have been heated?
- Burnt Label
- Burnt/Melted Plastic Rings
- Scorch Marks On Cylinder
- Wetting Test
- Thermal Image Camera Registering Heat
A12 - What is the predetermined attendance for incidents involving Cylinders?
- 2 x nearest fire appliances
- 1 x flexi-duty officer
- 1 x Hazardous Incident Team (HIT) officer
A12 - What is the colour classification for acetylene
Maroon/Burgundy
A12 - What is the colour classification for oxygen
white
A12 - What is the colour classification for Nitrous Oxide
Blue
A12 - What is the colour classification for Argon
Dark Green
A12 - What is the colour classification for Nitrogen
Black
A12 - What is the colour classification for Carbon Dioxide?
Grey
A12 - What is the colour classification for helium
brown
A12 - What is the colour classification for air or synthetic air?
bright green
A12 - What are the colour classifications by hazard type?
Inert is Bright Green
Oxidising is Light Blue
Flammable is Red
Toxic and/or Corrosive is Yellow
A12 - What are the hazards associated with Oxygen cylinders?
Explosion when subject to heat
Oxidising
Will intensify combustion
A12 - What are the hazards associated with Helium and Nitrogen cylinders?
Explosion when subject to heat
Asphyxiant
A12 - What are the hazards associated with Nitrous Oxide cylinders?
Explosion when subject to heat Oxidising Will intensify combustion Asphyxiant Contact with liquid causes skin burns and damage to eyes Narcotic in high concentrations
A12 - What are the hazards associated with Compressed Air cylinders?
Explosion when subject to heat
A12 - There are 4 main gas types. What are they?
Toxics/Corrosives
Oxidants
Inerts
Flammables
A12 - LPG cylinders failing under heat may result in an explosion, also known as a BLEVE. What does BLEVE stand for?
Boiling Liquid Expanding Vapour Explosion
A12 - How long is the cooling phase?
1 hour
A12 - How long is the monitoring phase
1 hour with monitoring every 15 minutes.
