44 



BELL SYSTEM TECHNICAL JOURNAL 



Fig. 4 

 The Summary of Results of Inspection — Fig. 4 



This form is kept with the inspection layout and the Lot by Lot 

 Records. Entries are made as indicated on Fig. 4. Clerical opera- 

 tions involved in making the necessary computations are explained in 

 the following paragraphs. 



L41 FA (Process Average) 



The Process Average should be computed at least once every six 

 months, and more frequently when conditions warrant. Only data 



