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Table B-9e. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics by Air (Includes Truck and Air) for Selected UN Number (1) for the United States: 2012

Monday, July 13, 2015

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(Estimates are based on data from the 2012 Commodity Flow Survey)

UN number UN description Value Tons Ton-miles (2) Average miles per shipment

coefficient of variation of number
Coefficient of variation of number Standard error of percent of total Coefficient of variation of number Standard error of percent of total Coefficient of variation of number Standard error of percent of total
  Total 12.8 Z 29.3 Z 38.4 Z 8.7
0012 Cartridges for weapons, inert projectile or cartridges, small arms S S 45.4 0.2 39.7 0.7 15.8
0161 Powder, smokeless S S S S S S 37.6
1013 Carbon dioxide S S S S S S 24.7
1046 Helium, compressed 33.4 1.8 48.7 0.1 41.6 0.8 40.5
1203 Gasoline, includes gasoline mixed with ethyl alcohol S S S S S S 44.5
1245 Methyl isobutyl ketone 42.0 25.8 S S 48.1 46.0 19.0
1263 Paint, including paint, lacquer, enamel 38.1 0.2 30.7 Z 35.9 0.1 11.8
1266 Perfumery products with flammable solvents S S S S S S S
1294 Toluene S S S S S S 1.6
1789 Hydrochloric acid S S S S S S 26.7
1801 Octyltrichlorosilane S S S S S S S
1810 Phosphorus oxychloride or phosphoryl chloride S S S S S S S
1830 Sulfuric acid with more than 51 percent acid S S S S S S 22.3
1863 Fuel, aviation, turbine engine S S S S S S S
1866 Resin solution, flammable 49.3 3.0 S S S S 8.3
1993 Flammable liquids, n.o.s 37.3 Z S S S S 19.6
3077 Environmentally hazardous substance, solid, n.o.s. 48.6 1.2 S S S S 13.2
3082 Environmentally hazardous substance, liquid, n.o.s. 21.3 0.1 31.3 Z 41.3 0.1 37.6
3090 Lithium battery 39.0 11.1 28.7 11.7 32.1 6.8 15.8
3268 Air bag inflators, or air bag modules, or seat-belt pretensioners 42.5 0.7 44.4 0.4 S S 32.2

KEY: S = Withheld because estimate did not meet publication standards.

Z = Rounds to zero.

(1) UN numbers shown had the highest estimated weight without considering sampling variability. Since an “All other UN numbers” line is not shown, estimates do not add to total.

(2) Ton-miles estimates are based on estimated distances traveled along a modeled transportation network. See “Mileage Calculations” section for additional information.

NOTES: The Introduction and appendixes give information on confidentiality protection, sampling error, nonsampling error, sample design and definitions. Links to this information on the Internet may be found at <>.

SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 2012 Economic Census: Transportation Commodity Flow Survey, December 2014.