2008, 2018
| Code | Value |
|---|---|
| SCT_A | Human necessities |
| SCT_B | Performing operations & transporting |
| SCT_C | Chemistry & metallurgy |
| SCT_D | Textiles & paper |
| SCT_E | Fixed constructions |
| SCT_F | Mechanical engineering, lighting, heating, weapons & blasting |
| SCT_G | Physics |
| SCT_H | Electricity |