Not official USP-NF text
ETIDRONATE DISODIUM
PF LGS# Brand Type of Test Additional Information
30(5) L23 IC-Pak Anion Assay 15 cm x 4.6 mm, manufacturer Waters Corp.
30(5) L61 Ion Pac AS-11 Limit of . . . . . . . . . Limit of phosphite. 25 cm x 4.6 mm, manufacturer Dionex.
16(6) G27 None Cited Organic volat. impurities See Method I 467