EVALUATION OF AEROSOL PARTICLE PENETRATION THROUGH PFA TUBING AND ANTISTATIC PFA TUBING.

The author focuses on a study of PFA and antistatic PFA tubing. The antistatic PFA material used has a surface resistivity of 10**1**1-10**1**2 OMEGA /sq. For comparison, plasticized PVC and copper tubing were also tested. Copper tubing was tested because of its conductivity and its minimal particle loss due to electrostatic effects. The test procedure is discussed. It was found that antistatic PFA tubing has penetration characteristics superior to PFA tubing in the size range tested for both Boltzmann-charged and singly charged particles. In both cases, the penetration results for antistatic PFA tubing were closer to the theoretical curve than were the results for PFA tubing.