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U.S. Notes (con.) (34) Plate-type supported catalysts (reaction accelerators) for reduction of nitrous oxides (NOx), with base metals being the active substances, applied on a titanium dioxide based ceramic material to a stainless steel mesh (described in statistical reporting number 3815.19.0000) (35) Supported catalysts for polymerization (described in statistical reporting number 3815.19.0000) (36) Supported catalysts of copper oxide or zinc oxide as the active ingredients for arsine removal (described in statistical reporting number 3815.19.0000) (37) Supported catalysts with copper carbonate or zinc carbonate as the active ingredients for low temperature desulfurization (described in statistical reporting number 3815.19.0000) (38) Supported catalysts with metal sulfide as the active substance for mercury removal (described in statistical reporting number 3815.19.0000) (39) Supported catalysts with molybdenum compounds as the active substance for hydrogenation (described in statistical reporting number 3815.19.0000) (40) Supported catalysts with zinc oxide absorbent as the active substance (described in statistical reporting number 3815.19.0000) (41) Mixtures containing N,Ndimethyldodecan-1-amine (CAS No. 112-18-5) and N,N-dimethyltetradecan-1-amine (CAS No. 112-75-4) (described in statistical reporting number 3824.99.9297 prior to January 27, 2022; described in 3824.99.9397 effective January 27, 2022) (42) Mixtures of hydrofluorocarbons, containing 40 to 44 percent by weight of 1,1,1,2-tetrafluoroethane (CAS No. 811-97-2), 56 to 60 percent by weight of pentafluoroethane (CAS No. 354-33-6) and up to 2 percent by weight of lubricating oil (described in statistical reporting number 3824.78.0020 prior to January 27, 2022; described in statistical reporting number 3827.62.0000 effective January 27, 2022) (43) Refrigerant gas R-421B, comprising mixtures containing at least 83 percent but not more than 87 percent by weight of pentafluoroethane, at least 13 percent but not more than 17 percent by weight of 1,1,2,2-tetrafluoroethane, and at least 0.5 percent but not more than 2 percent by weight of lubricant (described in statistical reporting number 3824.78.0020 prior to January 27, 2022; described in statistical reporting number 3827.62.0000 effective January 27, 2022) (44) Injection molded polypropylene plastic caps or lids each weighing not over 24 grams designed for dispensing wet wipes (described in statistical reporting number 3923.50.0000) (45) One-piece stoppers, of polypropiolactone ("PPL") or polylactic acid ("PLA") polymers, each comprising a disc-shaped top attached to a rounded, tapered plug with a protruding stirrer, measuring at least 55 mm but not more than 120.7 mm in overall length, and weighing at least 0.6 g but not more than 1.1 g each, of a kind used with lids for beverage containers (described in statistical reporting number 3923.50.0000) (46) Endless synchronous belts of vulcanized rubber, molded polyurethane, neoprene, or welded urethane, each of an outside circumference of 60 cm or more but not more than 77 cm and a width of 2.5 cm or more but not exceeding 4 cm, weighing 0.18 kg or more but not exceeding 0.45 kg (described in statistical reporting number 4010.35.9000) (47) Messenger bags of polyester, each measuring not more than 50 cm by 38 cm by 11 cm, weighing not more than 2.5 kg (described in statistical reporting number 4202.12.8130) (48) Backpacks with hydration system, each measuring not more than 51 cm by 28 cm by 9 cm, weighing not more than 1 kg (described in statistical reporting number 4202.92.0400) (49) Backpacks with outer surface of textile materials of man-made fibers, each measuring at least 35 cm but not more than 75 cm in height, at least 19 cm but not more than 34 cm in width, and at least 5 cm but not more than 26 cm in depth (described in statistical reporting number 4202.92.3120) (50) Duffel bags made predominantly of man-made fibers, weighing not more than 7 kg, with wheels (described in statistical reporting number 4202.92.3131) (51) Duffel bags of polyester, weighing not more than 7 kg (described in statistical reporting number 4202.92.3131) Harmonized Tariff Schedule of the United States Revision 15 (2026) Annotated for Statistical Reporting Purposes XXII 99 - III - 301