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=====C-1 Acetylene Fires=====
===Emergency Manual=== 
==Date Revised: 02/01/2018==
<sub>Last Modified: ~~LASTMOD~~ </sub>

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Policy/Procedure \\

**1. Cylinder Fires** \\ \\
  - If the flame is around the valve, the regulator, or the threaded pressure plug, the flame can be wiped out with a wet rag or smothered with putty.  Firefighters should watch out for the pressure plug blowing out while doing this. \\ *Note: Older style pressure plugs may be made of lead while newer plugs may be made of brass. \\ \\
  - Fire burning from a blown pressure plug will subside in a few minutes as refrigeration of the acetone (in which the acetylene is dissolved) takes place. \\ \\
  - Fire personnel shall protect exposed cylinders with fog streams. \\ \\
  - When the flame from the involved cylinder is approximately one foot high, it can be extinguished with a dry chemical extinguisher by applying the agent at the base of the flame and in the same direction as the escaping gas. \\ \\
  - When extinguishment is complete, fire personnel shall move the involved cylinder outdoors, where it will be less of a hazard. \\ \\
**2. Fire Inside a Cylinder**

On rare occasions, un-observable flames will recede into the cylinder producing a hissing noise, and causing paint to burn off the cylinder. This is an extremely dangerous condition. \\ \\

  - Fire personnel witnessing this condition shall cool the cylinder with a narrow fog stream. \\ \\
  - Fire personnel shall secure nozzles in position to envelope the cylinder in spray and withdraw to a safe location until the burning process is complete. \\ \\
  - If, upon arrival, a loud hissing or frying noise is heard and the cylinder is cherry red, swelling, or bulging, crews shall evacuate the area and stay behind a substantial barricade while directing streams on the cylinder. An explosion producing fragmentation of the cylinder is likely.

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See Also:
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