POLYKTIIYLEMO CABLE SHEATH THICKNESS 



567 



the band, beoominp; progressively less to the right across the band. The 

 majority of points to the extreme right were found to be cases of excess 

 flood. Many of the points, near the extreme right had insufficient flood- 

 ing. Points close to the curve had the flood just filling the corrugation 

 \alleys. Other points consist of \'arions other amounts of flood and/or 

 arc the result of deviation from correct surface cur\-ature. 



0.24 

 0.23 

 0.22 



0.21 

 0.20 



0.19 



a. 0.13 



0.11 



0.10 



0.08 



0.07 



■100 -90 -80 -70 -60 -50 -40 -30 -20 -10 10 20 30 40 50 

 U RECORDER SCALE *\ 



Fig. 9 — Calibration of flat sample thickness versus recorder scale. 



