Section 06 Products of the chemical or allied 38 Miscellaneous chemical products 38 27 - Other 38 27 64 -- Other, not included in the subheadings above, containing 30 % or more by mass of 1,1,1,2- tetrafluoroethane (HFC-134a) but not containing unsaturated fluorinated derivatives of acyclic hydrocarbons (HFOs) Commodity Code Description 38 27 64 00 -- Other, not included in the subheadings above, containing 30 % or more by mass of 1,1,1,2- tetrafluoroethane (HFC-134a) but not containing unsaturated fluorinated derivatives of acyclic hydrocarbons (HFOs)