Minimum specifications for a patch code include:
-
The narrow bars and spaces must be 0.08 inches wide =/- 0.01 inches.
-
The wide bars must be 0.20 inches wide +/- 0.01 inches.
-
The entire patch code must be 0.80 inches in height =/- 0.01 inches.
-
The minimum overall length of the patch bars is 2 inches. However, use of a standard 2.5 inches patch code is recommended to ensure the patch code may still be read even in there is a slight variation in the positioning.