| Not official USP-NF text | ||||
| GUANABENZ ACETATE | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 10(3) | G25 | SF-96 | Limit of . . . . . . . . . | 2,6-dichlorobenzaldehyde; 20% |
| 10(3) | S1NS | Chromosorb W | Limit of . . . . . . . . . | 2,6-dichlorobenzaldehyde; 80--100 mesh |
| 17(3) | G43 | None Cited | Organic volat. impurities | See Method V  467 |