| Not official USP-NF text | ||||
| FOSCARNET SODIUM | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 0(0) | L23 | IC-Pak Anion | Limit of . . . . . . . . . | Limit of phosphate and phosphite. 4.6 mm x 5 cm. |
| 33(5) | G27 | SPB-5 | Limit of . . . . . . . . . | Limit of foscarnet related compound D. 0.31 mm x 25 m, 0.5 µm. |
| 33(5) | L1 | Hypersil C18 | Limit of . . . . . . . . . | Limit of foscarnet related compound B, unknown impurities and total impurities. 4.6 mm x 10 cm, 3 µm. |