796 



BELL SYSTEM TECHNICAL JOURNAL 



-10 +10 -10 



SCLEROSCOPE ROCKWELL 



DIVERGENCE OF SUPPLIER'S READINGS FROM CONSUMERS 



Fig. 21 — Typical Results Showing Frequency of Occurrence of Degrees of Difference 



Between Two Machines. 



-lie 



40,000 50,000 60,000 70,000 80,000 90,000 100,000 

 TENSILE STRENGTH-PSI 

 Fig. 22 — Accumulated Data on High and Clock-Brass Sheet. 



