Technician A says that when performing a J1667 opacity test, the exhaust stack diameter must be correctly entered into the opacity meter instrument or the results will not be meaningful. Technician B says that the ambient temperature must exceed 35 degrees Fahrenheit (2 degrees Celsius) before a valid J1667 opacity test is undertaken. Who is right?

Question

Quizplus · Accepted Answer

Both technicians are correct. The exhaust stack diameter is crucial for accurate measurements in a J1667 opacity test, and ambient temperature conditions affect the accuracy of the test, with the requirement being above 35 degrees Fahrenheit (2 degrees Celsius) for valid results.

Technician a Says That When Performing a J1667 Opacity Test