1. Thermal imaging cameras should only be used in less than __________ of Methane.
  1. 0.5 percent
  2. 1 percent
  3. 1.5 percent
  4. 2 percent
Correct!  The correct answer is B. 1 percent.
Statement No. 92:  Thermal imaging cameras should only be used in less than 1 percent of Methane.