5. Why Have Inert Gases?
A
R
G
O
N
Pipe section
to be welded
Pipe section
to be welded
Field Weld
Point
Purge Dams
Inert Gas
(Argon)
Inert Gas
Purge Hose
Argon Leaking from Purge DamArgon Leaking from Purge Dam
6. Inert gases are not toxic and do not
burn or explode.
Yet they can cause injury or death if
they are present in sufficiently high
concentrations.
They can displace enough air to
reduce Oxygen (O2) levels.
What is the danger of an Inert Gas?
8. Oxygen Deficiency
Oxygen is Essential for:
Human Life and Brain Processes
O2 If there is too little oxygen:
* Brain Cells stop working
* Loss of consciousness
* Breathing stops
* Brain damage, paralysis
* DEATH
10. How can you identify a
Confined Space?
A confined space is a space which has
any of the following characteristics :
Limited opening for entry and exit
Poor ventilation
Not designed for continuous human
occupancy
11. How can you identify a
Confined Space?
If you are required to construct or work in:
You are working in a confined space!!!