Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED 38 Miscellaneous chemicals products. 38 27 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included. 38 27 51 CONTAINING TRIFLUOROMETHANE (HFC-23) 38 27 51 00 CONTAINING TRIFLUOROMETHANE (HFC-23) Commodity Code Description 38 27 51 00 000 CONTAINING TRIFLUOROMETHANE (HFC-23)