Not official USP-NF text
BUTABARBITAL
PF LGS# Brand Type of Test Additional Information
11(1) S1AB Gas Chrom Q Assay NULL
11(1) G37 Poly-I 110 Assay 10% Poly I 110 on 80/100 Supelcoprot BW (S1AB).
17(3) G43 None Cited Organic volatile impurities See Method V 467