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.

UN Numbers 1869 through 1950

UN#GuideName of MaterialISO
Current as of: Oct. 2, 2011
1869138Magnesium alloys, with more than 50% Magnesium, in pellets, turnings or ribbons
1869138Magnesium, in pellets, turnings or ribbons
1870138Potassium borohydride
1871170Titanium hydride
1872141Lead dioxide
1873143Perchloric acid, with more than 50% but not more than 72% acid
1884157Barium oxide
1886156Benzylidene chloride
1889157Cyanogen bromide
1891131Ethyl bromide
1894151Phenylmercuric hydroxide
1895151Phenylmercuric nitrate
1898156Acetyl iodide
1902153Diisooctyl acid phosphate
1903153Disinfectant, liquid, corrosive, n.o.s.
1903153Disinfectants, corrosive, liquid, n.o.s.
1905154Selenic acid
1905154Selenic acid
1906153Acid, sludge
1906153Sludge acid
1907154Soda lime, with more than 4% Sodium hydroxide
1908154Chlorite solution
1908154Chlorite solution, with more than 5% available Chlorine
1908154Sodium chlorite, solution, with more than 5% available Chlorine
1910157Calcium oxide
1911119Diborane mixtures
1911119Diborane, compressedYes
1912115Methyl chloride and Methylene chloride mixture
1912115Methylene chloride and Methyl chloride mixture
1913120Neon, refrigerated liquid (cryogenic liquid)
1914130Butyl propionates
19161522,2'-Dichlorodiethyl ether
1916152Dichloroethyl ether
1917129PEthyl acrylate, stabilized
1919129PMethyl acrylate, stabilized
1921131PPropyleneimine, stabilized
1923135Calcium dithionite
1923135Calcium hydrosulfite
1923135Calcium hydrosulphite
1928135Methyl magnesium bromide in Ethyl ether
1929135Potassium dithionite
1929135Potassium hydrosulfite
1929135Potassium hydrosulphite
1931171Zinc dithionite
1931171Zinc hydrosulfite
1931171Zinc hydrosulphite
1932135Zirconium scrap
1935157Cyanide solution, n.o.s.
1938156Bromoacetic acid
1938156Bromoacetic acid, solution
1939137Phosphorus oxybromide
1939137Phosphorus oxybromide, solid
1940153Thioglycolic acid
1942140Ammonium nitrate, with not more than 0.2% combustible substances
1944133Matches, safety
1945133Matches, wax vesta
1950126Aerosol dispensers

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)

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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.

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