Not official USP-NF text
BUTYL ALCOHOL
PF LGS# Brand Type of Test Additional Information
7(6) G29 None Cited Limit of . . . . . . . . . butyl ether; 25%
7(6) S1C None Cited Limit of . . . . . . . . . butyl ether; 30--40 mesh
16(6) G27 None Cited Organic volatile impurities See Method I 467
18(3) G43 None Cited Organic volatile impurities See Method IV 467