Not official USP-NF text
PROPYLENE GLYCOL
PF LGS# Brand Type of Test Additional Information
8(3) G16 None Cited Assay 5%.
8(3) S5 None Cited Assay
16(6) G27 None Cited Limit of . . . . . . . . . propylene oxide.
16(4) G27 None Cited Organic volatile impurities See Method I 467
18(3) G43 None Cited Organic volatile impurities See Method IV 467