EnvironmentalChemistry.com
Environmental, Chemistry & Hazardous Materials News, Careers & Resources

Emergency Response Guidebook (ERG)

This is an online version of the 2008 Emergency Response Guidebook (ERG) which is produced by the USDOT for first responders during the initial phase of a Dangerous goods/Hazardous Materials incident. Have you ever wondered what those four digit numbers on the placards on the side of trucks and rail cars mean? Our online ERG will give you your answer.

ERG Menu

UN Numbers 1951 through 2005

UN#GuideName of MaterialISO
Current as of: Oct. 2, 2011
1951120Argon, refrigerated liquid (cryogenic liquid)
1952126Carbon dioxide and Ethylene oxide mixtures, with not more than 6% Ethylene oxide
1952126Carbon dioxide and Ethylene oxide mixtures, with not more than 9% Ethylene oxide
1952126Ethylene oxide and Carbon dioxide mixtures, with not more than 6% Ethylene oxide
1952126Ethylene oxide and Carbon dioxide mixtures, with not more than 9% Ethylene oxide
1953119Compressed gas, flammable, poisonous, n.o.s. (Inhalation Hazard Zone A) Yes
1953119Compressed gas, flammable, poisonous, n.o.s. (Inhalation Hazard Zone B) Yes
1953119Compressed gas, flammable, poisonous, n.o.s. (Inhalation Hazard Zone C) Yes
1953119Compressed gas, flammable, poisonous, n.o.s. (Inhalation Hazard Zone D) Yes
1953119Compressed gas, flammable, toxic, n.o.s. (Inhalation Hazard Zone A) Yes
1953119Compressed gas, flammable, toxic, n.o.s. (Inhalation Hazard Zone B) Yes
1953119Compressed gas, flammable, toxic, n.o.s. (Inhalation Hazard Zone C) Yes
1953119Compressed gas, flammable, toxic, n.o.s. (Inhalation Hazard Zone D) Yes
1953119Compressed gas, poisonous, flammable, n.o.s.Yes
1953119Compressed gas, poisonous, flammable, n.o.s. (Inhalation Hazard Zone A) Yes
1953119Compressed gas, poisonous, flammable, n.o.s. (Inhalation Hazard Zone B) Yes
1953119Compressed gas, poisonous, flammable, n.o.s. (Inhalation Hazard Zone C) Yes
1953119Compressed gas, poisonous, flammable, n.o.s. (Inhalation Hazard Zone D) Yes
1953119Compressed gas, toxic, flammable, n.o.s.Yes
1953119Compressed gas, toxic, flammable, n.o.s. (Inhalation Hazard Zone A) Yes
1953119Compressed gas, toxic, flammable, n.o.s. (Inhalation Hazard Zone B) Yes
1953119Compressed gas, toxic, flammable, n.o.s. (Inhalation Hazard Zone C) Yes
1953119Compressed gas, toxic, flammable, n.o.s. (Inhalation Hazard Zone D) Yes
1954115Compressed gas, flammable, n.o.s.
1954115Dispersant gas, n.o.s. (flammable)
1954115Insecticide gas, flammable, n.o.s.
1954115Refrigerant gas, n.o.s. (flammable)
1954115Refrigerating machines, containing flammable, non-poisonous, non-corrosive, liquefied gas
1955123Compressed gas, poisonous, n.o.s.Yes
1955123Compressed gas, poisonous, n.o.s. (Inhalation Hazard Zone A) Yes
1955123Compressed gas, poisonous, n.o.s. (Inhalation Hazard Zone B) Yes
1955123Compressed gas, poisonous, n.o.s. (Inhalation Hazard Zone C) Yes
1955123Compressed gas, poisonous, n.o.s. (Inhalation Hazard Zone D) Yes
1955123Compressed gas, toxic, n.o.s.Yes
1955123Compressed gas, toxic, n.o.s. (Inhalation Hazard Zone A) Yes
1955123Compressed gas, toxic, n.o.s. (Inhalation Hazard Zone B) Yes
1955123Compressed gas, toxic, n.o.s. (Inhalation Hazard Zone C) Yes
1955123Compressed gas, toxic, n.o.s. (Inhalation Hazard Zone D) Yes
1955123Organic phosphate compound mixed with compressed gasYes
1955123Organic phosphate mixed with compressed gasYes
1955123Organic phosphorus compound mixed with compressed gasYes
1956126Accumulators, pressurized, pneumatic or hydraulic
1956126Compressed gas, n.o.s.
1956126Hexafluoropropylene oxide
1957115Deuterium
1957115Deuterium, compressed
19581261,2-Dichloro-1,1,2,2-tetrafluoroethane
1958126Dichlorotetrafluoroethane
1958126Refrigerant gas R-114
1959116P1,1-Difluoroethylene
1959116PRefrigerant gas R-1132a
1960115Engine starting fluid
1961115Ethane, refrigerated liquid
1961115Ethane-Propane mixture, refrigerated liquid
1961115Propane-Ethane mixture, refrigerated liquid
1962116PEthylene
1962116PEthylene, compressed
1963120Helium, refrigerated liquid (cryogenic liquid)
1964115Hydrocarbon gas mixture, compressed, n.o.s.
1964115Hydrocarbon gas, compressed, n.o.s.
1965115Hydrocarbon gas mixture, liquefied, n.o.s.
1965115Hydrocarbon gas mixture, liquefied, n.o.s.
1965115Hydrocarbon gas, liquefied, n.o.s.
1966115Hydrogen, refrigerated liquid (cryogenic liquid)
1967123Insecticide gas, poisonous, n.o.s.Yes
1967123Insecticide gas, toxic, n.o.s.Yes
1967123Parathion and compressed gas mixtureYes
1968126Insecticide gas, n.o.s.
1969115Isobutane
1969115Isobutane mixture
1970120Krypton, refrigerated liquid (cryogenic liquid)
1971115Methane
1971115Methane, compressed
1971115Natural gas, compressed
1972115Liquefied natural gas (cryogenic liquid)
1972115LNG (cryogenic liquid)
1972115Methane, refrigerated liquid (cryogenic liquid)
1972115Natural gas, refrigerated liquid (cryogenic liquid)
1973126Chlorodifluoromethane and Chloropentafluoroethane mixture
1973126Chloropentafluoroethane and Chlorodifluoromethane mixture
1973126Refrigerant gas R-502
1974126Bromochlorodifluoromethane
1974126Chlorodifluorobromomethane
1974126Refrigerant gas R-12B1
1975124Dinitrogen tetroxide and Nitric oxide mixtureYes
1975124Nitric oxide and Dinitrogen tetroxide mixtureYes
1975124Nitric oxide and Nitrogen dioxide mixtureYes
1975124Nitric oxide and Nitrogen tetroxide mixtureYes
1975124Nitrogen dioxide and Nitric oxide mixtureYes
1975124Nitrogen tetroxide and Nitric oxide mixtureYes
1976126Octafluorocyclobutane
1976126Refrigerant gas RC-318
1977120Nitrogen, refrigerated liquid (cryogenic liquid)
1978115Propane
1978115Propane mixture
1979121Rare gases mixture
1979121Rare gases mixture, compressed
1980121Oxygen and Rare gases mixture
1980121Oxygen and Rare gases mixture, compressed
1980121Rare gases and Oxygen mixture
1980121Rare gases and Oxygen mixture, compressed
1981121Nitrogen and Rare gases mixture
1981121Nitrogen and Rare gases mixture, compressed
1981121Rare gases and Nitrogen mixture
1981121Rare gases and Nitrogen mixture, compressed
1982126Refrigerant gas R-14
1982126Refrigerant gas R-14, compressed
1982126Tetrafluoromethane
1982126Tetrafluoromethane, compressed
19831261-Chloro-2,2,2-trifluoroethane
1983126Chlorotrifluoroethane
1983126Refrigerant gas R-133a
1984126Refrigerant gas R-23
1984126Trifluoromethane
1986131Alcohols, flammable, poisonous, n.o.s.
1986131Alcohols, flammable, toxic, n.o.s.
1986131Alcohols, poisonous, n.o.s.
1986131Alcohols, toxic, n.o.s.
1986131Denatured alcohol (toxic)
1986131Propargyl alcohol
1986131Propargyl alcohol
1987127Alcohols, n.o.s.
1987127Denatured alcohol
1988131Aldehydes, flammable, poisonous, n.o.s.
1988131Aldehydes, flammable, toxic, n.o.s.
1988131Aldehydes, poisonous, n.o.s.
1988131Aldehydes, toxic, n.o.s.
1989129Aldehydes, n.o.s.
1990129Benzaldehyde
1991131PChloroprene, stabilized
1992131Flammable liquid, poisonous, n.o.s.
1992131Flammable liquid, toxic, n.o.s.
1993128Combustible liquid, n.o.s.
1993128Compound, cleaning liquid (flammable)
1993128Compound, tree or weed killing, liquid (flammable)
1993128Diesel fuel
1993128Flammable liquid, n.o.s.
1993128Fuel oil
1993128Medicines, flammable, liquid, n.o.s.
1993128Refrigerating machine
1994131Iron pentacarbonylYes
1994131Iron pentacarbonylYes
1999130Asphalt
1999130Tars, liquid
2000133Celluloid, in blocks, rods, rolls, sheets, tubes, etc., except scrap
2001133Cobalt naphthenates, powder
2002135Celluloid, scrap
2003135Metal alkyls, n.o.s.
2003135Metal alkyls, water-reactive, n.o.s.
2003135Metal aryls, n.o.s
2003135Metal aryls, water-reactive, n.o.s.
2004135Magnesium diamide
2005135Magnesium diphenyl

Data Source for our online 2008 ERG

This information was compiled from the 2008 Emergency Response Guidebook (2008 ERG) which is produced by the U.S. Department of Transportation.

(Data last updated/verified: Oct. 2, 2011)

Related Resources

Disclaimer

WARNING: These pages are for general reference and educational purposes only and MUST NOT be relied upon as a sole source to determine regulatory compliance or where matters of life and health are concerned. This site and the author do not warrant or guarantee the accuracy or the sufficiency of the information provided and do not assume any responsibility for its use.

To ensure regulatory compliance when transporting hazardous materials or dangerous goods, one must receive proper training and certification from a qualified instructor and refer to the current year's Code of Federal Regulations Title 49 (49CFR) or your country's shipping regulations. In matters regarding workplace safety, refer to current OSHA regulations (29CFR) and NIOSH guidelines or your own country's health and safety regulations. No one should ever enter into a hazardous environment without proper training from qualified instructors.

Citing this page

If you need to cite this page, you can copy this text: