10" 10' 



ID'' 10° 



10' lO"" 



10'' 10^ 













Mv^ iiAibLiaiiui; 







— — — —DC resistance 









^^ initial AC resis 



1 

 1 



tance 







\j 











capacitance ^^^^^^ 



1 X 





deviation 







^^ ^ • - 



— "^ 



\ \ 



-^^r" 

















\ 







-\ 





\ 





\ 



" — .^ 



\ 

 \ 



\ 



N 













extreme ^"^^^ 

 AC resistance NAl 







deviations ^iftk 



200 

 Exposure Time (days) 



Figure 9. Electrical properties of Systenn 117. 



14 



