Table B-9b. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics by Private Truck for Selected UN Numbers: 2002
Monday, July 2, 2012
Table B-9b. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics by Private Truck for Selected UN Numbers: 2002
[Estimates are shown as percents and are based on data from the 2002 Commodity Flow Survey]
| UN number | Description | Value | Tons | Ton-miles | CV of average miles per shipment |
|||
|---|---|---|---|---|---|---|---|---|
| CV | Std. error of percent | CV | Std. error of percent | CV | Std. error of percent | |||
| Total | 4.8 | – | 5.3 | – | 7.9 | – | 5.3 | |
| 0332 | Explosive, blasting, type E or Agent blasting, Type E | 40.3 | 0.1 | S | S | 44.5 | 0.3 | 46.1 |
| 1005 | Ammonia, anhydrous | 27 | – | 25.9 | 0.1 | S | S | S |
| 1006 | Argon, compressed | 49.2 | 0.4 | 48.7 | 0.3 | S | S | S |
| 1013 | Carbon dioxide | 29.8 | 0.1 | S | S | S | S | 26.1 |
| 1017 | Chlorine | 48.3 | 0.3 | S | S | S | S | 17.8 |
| 1066 | Nitrogen, compressed | 34.4 | 0.1 | 41.2 | 0.7 | S | S | 26.3 |
| 1072 | Oxygen, compressed | 17.9 | – | 33.1 | 0.3 | S | S | 36.2 |
| 1075 | Petroleum gases. | 17.3 | 0.6 | 26.6 | 0.6 | 46.3 | 1.6 | 29.8 |
| 1202 | Gas oil, diesel fuel, heating oil, light | 20.3 | 0.8 | 17.9 | 0.8 | 30.2 | 0.6 | 13.3 |
| 1203 | Gasoline | 5.9 | 2 | 6 | 2 | 13.4 | 3.4 | 15.2 |
| 1223 | Kerosene | 26.6 | 0.1 | 31.5 | 0.2 | 42.5 | 0.2 | 23.2 |
| 1263 | Paint including paint, lacquer, enamel, stain | 25.9 | 0.9 | 22.6 | 0.1 | 19.5 | 0.2 | 17.9 |
| 1267 | Petroleum crude oil | S | S | S | S | S | S | 31.4 |
| 1789 | Hydrochloric acid | 23.7 | – | 46.9 | 0.2 | 40.5 | 0.2 | 16.8 |
| 1824 | Sodium hydroxide solution | 20.2 | 0.2 | 40.3 | 0.3 | S | S | 24.2 |
| 1863 | Fuel, aviation, turbine engine | 21.5 | 0.1 | 28 | 0.2 | 25.9 | 0.1 | 32.3 |
| 1964 | Hydrocarbon gas mixture, compressed, n.o.s. | S | S | S | S | S | S | 19.6 |
| 1993 | Flammable liquids, n.o.s. | 9.1 | 1.2 | 8.3 | 1.4 | 12 | 2.6 | 12.7 |
| 3077 | Environmentally hazardous substances, solid, n.o.s. | S | S | S | S | S | S | 20 |
| 3257 | Elevated temperature liquid, n.o.s. | 40.5 | 0.2 | 36.8 | 0.5 | 24.2 | 0.8 | 23.6 |
| – | All other | 8.5 | 1.1 | 7.7 | 0.4 | 12.7 | 1.4 | 19.3 |
KEY:
– Represents an estimate equal to zero or less than 1 unit of
measure.
S Estimate does not meet publication standards because of highly sampling
variability or poor response quality.
CV Coefficient of variation of number
NOTE: 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 www.census.gov/cfs.
SOURCE: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Hazmat Data, December 2004.