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C 107.1 General
In making tests to determine compliance with the requirements of Section C 107.1, the following care shall be exercised to prevent the accumulation of unburned liquid fuel in the appliance that will result in an explosion or fire:
  1. The flames from the burner shall ignite freely the liquid fuel where operating at the lowest firing position.
  2. Burner flames shall not flash back where the liquid fuel is turned on or off by an automatic control mechanism.
  3. Main burner flames shall ignite freely from the pilot where the pilot flame is reduced to a minimum point that will actuate the pilot safety device.
  4. Where ignition is made in a normal manner, the flame will not flash outside the appliance.
  5. Burners shall not expel liquid fuel through air openings where operating at prevailing pressure.
  6. Burners shall have a liquid-fuel air mixture to ensure smooth ignition of the main burner.

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