2025/2026Graded A+
Acetylene degrees - ✔✔✔3000 degrees
Backfire - ✔✔✔Flame on torch goes out unexpectedly
A loud snap or pop may occur when the flame goes out.
Brazing and soldering temperatures - ✔✔✔Typically 840 degrees
City wise permit duration? - ✔✔✔30 days
Hazards out end of day
COF exception - ✔✔✔Torch operations for jewelry
Compression gas container
Dangerous temperatures - ✔✔✔High temperatures 125 degrees
FDNY permit - ✔✔✔Storing using or handling
oxygen and flammable gas
in excess of 400scf (LPG, CNG or scetylene)
oxidizing gass in excess of 504scf
, Fire guard - ✔✔✔Cof holder who is trained in and responsible for maintaijjng a fire watch.
Fire watch
At least one portable fire extinguisher with a - ✔✔✔Minimum 2-A:20-B:C rating shall be accessible
within 30ft from hot work
Fire watch
Exception roofing operating fire extinguisher - ✔✔✔3-A 40-B:C
Fire watch - ✔✔✔A fire watch must be maintained during any hot work operation.
Fire watch - ✔✔✔Survailance of an area
Detect signs of early fire
Raise alarms
Notify department
Fire watch for torch operations conducted at following locations by a F-60 fire guard: -
✔✔✔Construction sites
Buildings and structures
Rooftops
Fire watch must continue for - ✔✔✔30 minutes after the conclusing of the work.
Flashback - ✔✔✔Cutting or welding flame burns inside the torch or the hoses. It is usually accompanied
by a whistling or hissing noise.