10" 10' 



10= 10*' 



.? K 



initial AC resistance 



«• ^ 



■ ^ initial HP 



initial DC resistance 



initial capacitance 



10'' 10 



-AC resistance 

 ■ DC resistance 

 ■Capacitance 



100 200 300 



Exposure Time (days) 



Figure 15. Electrical properties of System 123. 



20 



