| Not official USP-NF text | ||||
| DILTIAZEM HYDROCHLORIDE | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 14(2) | L1 | MicroBondapak C18 | Assay | Reprinted 14(4) |
| 14(2) | L1 | MicroBondapak C18 | Identity | See Assay |
| 16(3) | G27 | None Cited | Organic volat. impurities | See Method I  467 |
| 18(2) | G43 | None Cited | Organic volat. impurities | See Method IV 467 |
| 14(2) | L1 | MicroBondapak C18 | Related compounds | See Assay |