Figure 13. Stainless steel panel with saran film after biological growth had 

 been removed with a spatula. 



Figure 14. Surface of stainless steel panel after saran covering had been removed. 

 Crevice corrosion along the edge of the panel was produced under- 

 neath the plastic when seawater was introduced through tiny rupture 

 holes. A clean, shining metal surface was found underneath a 

 rectangular (patch-like) saran covering (right side). 



19 



