Perforation Spacing (in) | Perforation Diameter (in) | (1 in) | (11/4 in) | (11/2 in) |
30 | 3/16 | 34 | 52 | 70 |
7/32 | 30 | 45 | 57 | |
1/4 | 25 | 38 | 50 | |
36 | 3/16 | 36 | 60 | 75 |
7/32 | 33 | 51 | 63 | |
1/4 | 27 | 42 | 54 |
Ill. Admin. Code tit. 77, pt. 906, app A, exh. D
Perforation Spacing (in) | Perforation Diameter (in) | (1 in) | (11/4 in) | (11/2 in) |
30 | 3/16 | 34 | 52 | 70 |
7/32 | 30 | 45 | 57 | |
1/4 | 25 | 38 | 50 | |
36 | 3/16 | 36 | 60 | 75 |
7/32 | 33 | 51 | 63 | |
1/4 | 27 | 42 | 54 |
Ill. Admin. Code tit. 77, pt. 906, app A, exh. D