| DESIGN DESIGNATION | BUECHNER |
| DISK DIAMETER | 91.00 MILLIMETERS NOMINAL |
| DISTANCE FROM DISK TO TOP | 46.00 MILLIMETERS NOMINAL |
| FILTERING DISK TYPE AND SIZE | 80.0 MILLIMETERS FIXED PERFORATED |
| MATERIAL | PORCELAIN |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | FUNNEL FILTERING LABORATORY PORCELAIN BUECHNER TYPE SIZE 2A |
| PRIMARY CONTAINER TYPE | CARTON |
| PRIMARY CONTAINER UNIT QUANTITY | 1 |
| NONDEFINITIVE SPEC/STD DATA | 2A SIZE |
| OVERALL OUTSIDE DIAMETER | 106.00 MILLIMETERS NOMINAL |
| STEM LENGTH | 71.00 MILLIMETERS NOMINAL |
| STYLE DESIGNATOR | DISK TYPE |
| TOTAL PRIMARY CONTAINER QUANTITY | 1 |
| SPECIAL FEATURES | UNGLAZED RIM |