| 600 |
Technology |
| 610 |
Medical
sciences, medicine |
| 620 |
Engineering
and allied operations |
| 630 |
Agriculture |
| 640 |
Home
economics, Family living, Cooking (641) |
| 650 |
Management
and auxiliary services |
| 660 |
Chemical
engineering |
| 670 |
Manufacturing |
| 680 |
Manufacture
for specific uses |
| 690 |
Buildings |
