Special Provision 387 — 49 CFR 172.102 (Numeric Codes)

Code	387
Description	When materials are stabilized by temperature control, the provisions of §173.21 apply. When chemical stabilization is employed, the person offering the material for transport shall ensure that the level of stabilization is sufficient to prevent the material as packaged from dangerous polymerization at 50 °C (122 °F). If chemical stabilization becomes ineffective at lower temperatures within the anticipated duration of transport, temperature control is required in which case transportation is forbidden by aircraft. In making this determination factors to be taken into consideration include, but are not limited to, the capacity and geometry of the packaging and the effect of any insulation present; the temperature of the material when offered for transport; the duration of the journey and the ambient temperature conditions typically encountered in the journey (considering also the season of year); the effectiveness and other properties of the stabilizer employed; applicable operational controls imposed by regulation (e.g., requirements to protect from sources of heat, including other cargo carried at a temperature above ambient); and any other relevant factors.
HazMat with this Code	UN 3022 - 1,2-Butylene oxide, stabilized UN 3302 - 2-Dimethylaminoethyl acrylate, stabilized UN 2522 - 2-Dimethylaminoethyl methacrylate, stabilized UN 2607 - Acrolein dimer, stabilized UN 1092 - Acrolein, stabilized UN 2218 - Acrylic acid, stabilized UN 1093 - Acrylonitrile, stabilized UN 1545 - Allyl isothiocyanate, stabilized UN 1724 - Allyltrichlorosilane, stabilized UN 2251 - Bicyclo [2,2,1] hepta-2,5-diene, stabilized or 2,5-Norbornadiene, stabilized UN 1010 - Butadienes, stabilized or Butadienes and Hydrocarbon mixture, stabilized containing more than 40% butadienes UN 2348 - Butyl acrylates, stabilized UN 2352 - Butyl vinyl ether, stabilized UN 1991 - Chloroprene, stabilized UN 1143 - Crotonaldehyde or Crotonaldehyde, stabilized UN 1589 - Cyanogen chloride, stabilized UN 2521 - Diketene, stabilized UN 1167 - Divinyl ether, stabilized UN 1917 - Ethyl acrylate, stabilized UN 2277 - Ethyl methacrylate, stabilized UN 2452 - Ethylacetylene, stabilized UN 1185 - Ethyleneimine, stabilized UN 1051 - Hydrogen cyanide, stabilized with less than 3 percent water UN 1614 - Hydrogen cyanide, stabilized, with less than 3 percent water and absorbed in a porous inert material UN 2527 - Isobutyl acrylate, stabilized UN 2283 - Isobutyl methacrylate, stabilized UN 1218 - Isoprene, stabilized UN 2396 - Methacrylaldehyde, stabilized UN 2531 - Methacrylic acid, stabilized UN 3079 - Methacrylonitrile, stabilized UN 1060 - Methyl acetylene and propadiene mixtures, stabilized UN 1919 - Methyl acrylate, stabilized UN 1246 - Methyl isopropenyl ketone, stabilized UN 1247 - Methyl methacrylate monomer, stabilized UN 1251 - Methyl vinyl ketone, stabilized UN 2227 - n-Butyl methacrylate, stabilized UN 3532 - Polymerizing substance, liquid, stabilized, n.o.s. UN 3534 - Polymerizing substance, liquid, temperature controlled, n.o.s. UN 3531 - Polymerizing substance, solid, stabilized, n.o.s. UN 3533 - Polymerizing substance, solid, temperature controlled, n.o.s. UN 2200 - Propadiene, stabilized UN 2055 - Styrene monomer, stabilized UN 1829 - Sulfur trioxide, stabilized UN 1081 - Tetrafluoroethylene, stabilized UN 1082 - Trifluorochloroethylene, stabilized or Refrigerant gas R 1113 UN 1301 - Vinyl acetate, stabilized UN 1085 - Vinyl bromide, stabilized UN 2838 - Vinyl butyrate, stabilized UN 1086 - Vinyl chloride, stabilized UN 1302 - Vinyl ethyl ether, stabilized UN 1860 - Vinyl fluoride, stabilized UN 1304 - Vinyl isobutyl ether, stabilized UN 1087 - Vinyl methyl ether, stabilized UN 1303 - Vinylidene chloride, stabilized UN 3073 - Vinylpyridines, stabilized UN 2618 - Vinyltoluenes, stabilized

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