National foreword
Committees responsible
Specification
1. Scope and field of application
2. Reference
3. Definitions
4. Designation
5. Codification
Figures
1. Code for shape of holes
2. Examples of coded shape of hole and aperture size
3. U-arrangement
4. Z-arrangement
5. M-arrangement
6. T-arrangement
7. Example R10 U15 x 20
8. Example C5 Z10 x 20
9. Example LR3 x 10 U12 x 18
10. Example LC3 x 10 Z18 x 12
11. Example C10 U20
12. Example LC10 x 15 U20
13. Example CD8 M12.5
14. Example H10 T16
15. T-arrangement, Orientation 1
16. T-arrangement, Orientation 2
17. Example C5 Z10 x 18 Orientation 1
18. Example C5 Z10 x 18 Orientation 2
19. Example LR3 x 18 Z12 x 36 Orientation 1
20. Example LR3 x 18 Z12 x 36 Orientation 2