| UN1005 | Ammonia, anhydrous | 2.3 | — |
| UN1008 | Boron trifluoride | 2.3 | — |
| UN1016 | Carbon monoxide, compressed | 2.3 | — |
| UN1017 | Chlorine | 2.3 | — |
| UN1023 | Coal gas, compressed | 2.3 | — |
| UN1026 | Cyanogen | 2.3 | — |
| UN1040 | Ethylene oxide or Ethylene oxide with nitrogen up to a total pressure of 1 MPa (10 bar) at 50 degrees C | 2.3 | — |
| UN1045 | Fluorine, compressed | 2.3 | — |
| UN1048 | Hydrogen bromide, anhydrous | 2.3 | — |
| UN1050 | Hydrogen chloride, anhydrous | 2.3 | — |
| UN1053 | Hydrogen sulfide | 2.3 | — |
| UN1062 | Methyl bromide | 2.3 | — |
| UN1064 | Methyl mercaptan | 2.3 | — |
| UN1067 | Dinitrogen tetroxide | 2.3 | — |
| UN1069 | Nitrosyl chloride | 2.3 | — |
| UN1071 | Oil gas, compressed | 2.3 | — |
| UN1076 | Phosgene | 2.3 | — |
| UN1079 | Sulfur dioxide | 2.3 | — |
| UN1082 | Trifluorochloroethylene, stabilized or Refrigerant gas R 1113 | 2.3 | — |
| UN1581 | Chloropicrin and methyl bromide mixtures | 2.3 | — |
| UN1582 | Chloropicrin and methyl chloride mixtures | 2.3 | — |
| UN1589 | Cyanogen chloride, stabilized | 2.3 | — |
| UN1612 | Hexaethyl tetraphosphate and compressed gas mixtures | 2.3 | — |
| UN1660 | Nitric oxide, compressed | 2.3 | — |
| UN1741 | Boron trichloride | 2.3 | — |
| UN1749 | Chlorine trifluoride | 2.3 | — |
| UN1859 | Silicon tetrafluoride | 2.3 | — |
| UN1911 | Diborane | 2.3 | — |
| UN1953 | Compressed gas, toxic, flammable, n.o.s. Inhalation hazard Zone A | 2.3 | — |
| UN1953 | Compressed gas, toxic, flammable, n.o.s. Inhalation hazard Zone B | 2.3 | — |
| UN1953 | Compressed gas, toxic, flammable, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN1953 | Compressed gas, toxic, flammable, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| NA1955 | Organic phosphate, mixed with compressed gas or Organic phosphate compound, mixed with compressed gas or Organic phosphorus compound, mixed with compressed gas | 2.3 | — |
| UN1955 | Compressed gas, toxic, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN1955 | Compressed gas, toxic, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN1955 | Compressed gas, toxic, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN1955 | Compressed gas, toxic, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| NA1967 | Parathion and compressed gas mixture | 2.3 | — |
| UN1967 | Insecticide gases, toxic, n.o.s. | 2.3 | — |
| UN1975 | Nitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures | 2.3 | — |
| UN2186 | Hydrogen chloride, refrigerated liquid | 2.3 | — |
| UN2188 | Arsine | 2.3 | — |
| UN2189 | Dichlorosilane | 2.3 | — |
| UN2190 | Oxygen difluoride, compressed | 2.3 | — |
| UN2191 | Sulfuryl fluoride | 2.3 | — |
| UN2192 | Germane | 2.3 | — |
| UN2194 | Selenium hexafluoride | 2.3 | — |
| UN2195 | Tellurium hexafluoride | 2.3 | — |
| UN2196 | Tungsten hexafluoride | 2.3 | — |
| UN2197 | Hydrogen iodide, anhydrous | 2.3 | — |
| UN2198 | Phosphorus Pentafluoride | 2.3 | — |
| UN2199 | Phosphine | 2.3 | — |
| UN2202 | Hydrogen selenide, anhydrous | 2.3 | — |
| UN2204 | Carbonyl sulfide | 2.3 | — |
| UN2417 | Carbonyl fluoride | 2.3 | — |
| UN2418 | Sulfur tetrafluoride | 2.3 | — |
| UN2420 | Hexafluoroacetone | 2.3 | — |
| UN2421 | Nitrogen trioxide | 2.3 | — |
| UN2534 | Methylchlorosilane | 2.3 | — |
| UN2548 | Chlorine pentafluoride | 2.3 | — |
| UN2676 | Stibine | 2.3 | — |
| UN2901 | Bromine chloride | 2.3 | — |
| UN3057 | Trifluoroacetyl chloride | 2.3 | — |
| UN3083 | Perchloryl fluoride | 2.3 | — |
| UN3160 | Liquefied gas, toxic, flammable, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3160 | Liquefied gas, toxic, flammable, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3160 | Liquefied gas, toxic, flammable, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3160 | Liquefied gas, toxic, flammable, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3162 | Liquefied gas, toxic, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3162 | Liquefied gas, toxic, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3162 | Liquefied gas, toxic, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3162 | Liquefied gas, toxic, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3168 | Gas sample, non-pressurized, toxic, flammable, n.o.s., not refrigerated liquid | 2.3 | — |
| UN3169 | Gas sample, non-pressurized, toxic, n.o.s., not refrigerated liquid | 2.3 | — |
| UN3300 | Ethylene oxide and carbon dioxide mixture with more than 87 percent ethylene oxide | 2.3 | — |
| UN3303 | Compressed gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3303 | Compressed gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3303 | Compressed gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3303 | Compressed gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3304 | Compressed gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3304 | Compressed gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3304 | Compressed gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3304 | Compressed gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3305 | Compressed gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3305 | Compressed gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3305 | Compressed gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3305 | Compressed gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3306 | Compressed gas, toxic, oxdizing, corrosive, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3306 | Compressed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3306 | Compressed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3306 | Compressed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3307 | Liquefied gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3307 | Liquefied gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3307 | Liquefied gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3307 | Liquefied gas, toxic, oxidizing, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3308 | Liquefied gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3308 | Liquefied gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3308 | Liquefied gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3308 | Liquefied gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3309 | Liquefied gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3309 | Liquefied gas toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3309 | Liquefied gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3309 | Liquefied gas, toxic, flammable, corrosive, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3310 | Liquefied gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone A | 2.3 | — |
| UN3310 | Liquefied gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone B | 2.3 | — |
| UN3310 | Liquefied gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone C | 2.3 | — |
| UN3310 | Liquefied gas, toxic, oxidizing, corrosive, n.o.s. Inhalation Hazard Zone D | 2.3 | — |
| UN3318 | Ammonia solution, relative density less than 0.880 at 15 degrees C in water, with more than 50 percent ammonia | 2.3 | — |
| UN3355 | Insecticide gases, toxic, flammable, n.o.s. Inhalation hazard Zone A | 2.3 | — |
| UN3355 | Insecticide gases, toxic, flammable, n.o.s. Inhalation hazard Zone B | 2.3 | — |
| UN3355 | Insecticide gases, toxic, flammable, n.o.s. Inhalation hazard Zone C | 2.3 | — |
| UN3355 | Insecticide gases, toxic, flammable, n.o.s. Inhalation hazard Zone D | 2.3 | — |
| UN3512 | Adsorbed gas, toxic, n.o.s. Inhalation hazard zone A | 2.3 | — |
| UN3512 | Adsorbed gas, toxic, n.o.s. Inhalation hazard zone B | 2.3 | — |
| UN3512 | Adsorbed gas, toxic, n.o.s. Inhalation hazard zone C | 2.3 | — |
| UN3512 | Adsorbed gas, toxic, n.o.s. Inhalation hazard zone D | 2.3 | — |
| UN3514 | Adsorbed gas, toxic, flammable, n.o.s. Inhalation hazard zone A | 2.3 | — |
| UN3514 | Adsorbed gas, toxic, flammable, n.o.s. Inhalation hazard zone B | 2.3 | — |
| UN3514 | Adsorbed gas, toxic, flammable, n.o.s. Inhalation hazard zone C | 2.3 | — |
| UN3514 | Adsorbed gas, toxic, flammable, n.o.s. Inhalation hazard zone D | 2.3 | — |
| UN3515 | Adsorbed gas, toxic, oxidizing, n.o.s. Inhalation hazard zone A | 2.3 | — |
| UN3515 | Adsorbed gas, toxic, oxidizing, n.o.s. Inhalation hazard zone B | 2.3 | — |
| UN3515 | Adsorbed gas, toxic, oxidizing, n.o.s. Inhalation hazard zone C | 2.3 | — |
| UN3515 | Adsorbed gas, toxic, oxidizing, n.o.s. Inhalation hazard zone D | 2.3 | — |
| UN3516 | Adsorbed gas, toxic, corrosive, n.o.s. Inhalation hazard zone A | 2.3 | — |
| UN3516 | Adsorbed gas, toxic, corrosive, n.o.s. Inhalation hazard zone B | 2.3 | — |
| UN3516 | Adsorbed gas, toxic, corrosive, n.o.s. Inhalation hazard zone C | 2.3 | — |
| UN3516 | Adsorbed gas, toxic, corrosive, n.o.s. Inhalation hazard zone D | 2.3 | — |
| UN3517 | Adsorbed gas, toxic, flammable, corrosive, n.o.s. Inhalation hazard zone A | 2.3 | — |
| UN3517 | Adsorbed gas, toxic, flammable, corrosive, n.o.s. Inhalation hazard zone B | 2.3 | — |
| UN3517 | Adsorbed gas, toxic, flammable, corrosive, n.o.s. Inhalation hazard zone C | 2.3 | — |
| UN3517 | Adsorbed gas, toxic, flammable, corrosive, n.o.s. Inhalation hazard zone D | 2.3 | — |
| UN3518 | Adsorbed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation hazard zone A | 2.3 | — |
| UN3518 | Adsorbed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation hazard zone B | 2.3 | — |
| UN3518 | Adsorbed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation hazard zone C | 2.3 | — |
| UN3518 | Adsorbed gas, toxic, oxidizing, corrosive, n.o.s. Inhalation hazard zone D | 2.3 | — |
| UN3519 | Boron trifluoride, adsorbed | 2.3 | — |
| UN3520 | Chlorine, adsorbed | 2.3 | — |
| UN3521 | Silicon tetrafluoride, adsorbed | 2.3 | — |
| UN3522 | Arsine, adsorbed | 2.3 | — |
| UN3523 | Germane, adsorbed | 2.3 | — |
| UN3524 | Phosphorus pentafluoride, adsorbed | 2.3 | — |
| UN3525 | Phosphine, adsorbed | 2.3 | — |
| UN3526 | Hydrogen selenide, adsorbed | 2.3 | — |
| UN3539 | Articles containing toxic gas, n.o.s. | 2.3 | — |
| NA9035 | Gas identification set | 2.3 | — |
| NA9202 | Carbon monoxide, refrigerated liquid (cryogenic liquid) | 2.3 | — |
