_Sample.Sf_category
| Description | Category assigned to the information in the save frame. |
| Details: | |
| category of the parent saveframe (necessary for NMR-STAR to relational database mapping) | |
| Parent saveframe | sample |
| Data type | code |
| DB table | Sample |
| DB column | Sf_category |
| DB type | VARCHAR(127) |
| NULL allowed | no (mandatory) |
| ADIT-NMR deposition system prompt | Sf category |