Not official USP-NF text
ISONIAZID
PF LGS# Brand Type of Test Additional Information
10(2) L1 Alltech 600RP Assay 5-µm
10(5) L1 MicroBondapak C18 Assay { Alternative reagent; 5-µm specification deleted; reprinted 10(6), 11(1)
16(4) G27 None Cited Organic volat. impurities See Method I 467