Calibration scopes:
| company | ISO17025 | ISO17020 |
| INTERMES nv (Berchem) |
 |
 |
| Trescal sa (Halma) |
 |
- |
| INTERMES bv (Hengelo) |
 |
- |
| Trescal bv (Zoetermeer) |
 |
- |
