Practice question

Flashpoint of a flammable liquid is BEST defined as:

  1. The minimum temperature at which it auto-ignites without an ignition source
  2. The lowest temperature at which it emits enough vapor to form an ignitable mixture in air
  3. The boiling point
  4. The maximum storage temperature

Answer: B — The lowest temperature at which it emits enough vapor to form an ignitable mixture in air

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