Not official USP-NF text
BALSALAZIDE DISODIUM
PF LGS# Brand Type of Test Additional Information
35(4) L1 Eclipse XDB C18 Organic Impurities Procedure 1. 4.6 mm x 25 cm, 5 µm.
0(0) L1 Atlantis T3 Organic Impurities Procedure 2. 4.6 mm x 15 cm, 3 µm.