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 2646 through 2710

UN#GuideName of MaterialISO
Current as of: Oct. 2, 2011
2646151HexachlorocyclopentadieneYes
2647153Malononitrile
26481541,2-Dibromobutan-3-one
26491531,3-Dichloroacetone
26501531,1-Dichloro-1-nitroethane
26511534,4'-Diaminodiphenylmethane
2653156Benzyl iodide
2655151Potassium fluorosilicate
2655151Potassium silicofluoride
2656154Quinoline
2657153Selenium disulfide
2657153Selenium disulphide
2658152Selenium powder
2659151Sodium chloroacetate
2660153Mononitrotoluidines
2660153Nitrotoluidines (mono)
2661153Hexachloroacetone
2662153Hydroquinone
2662153Hydroquinone, solid
2664160Dibromomethane
2664160Dibromomethane
2666156Ethyl cyanoacetate
2667152Butyltoluenes
2668131ChloroacetonitrileYes
2669152Chlorocresols
2669152Chlorocresols, liquid
2669152Chlorocresols, solid
2669152Chlorocresols, solution
2670157Cyanuric chloride
2671153Aminopyridines
2672154Ammonia, solution, with more than 10% but not more than 35% Ammonia
2672154Ammonium hydroxide
2672154Ammonium hydroxide, with more than 10% but not more than 35% Ammonia
26731512-Amino-4-chlorophenol
2674154Sodium fluorosilicate
2674154Sodium silicofluoride
2676119StibineYes
2677154Rubidium hydroxide, solution
2678154Rubidium hydroxide
2678154Rubidium hydroxide, solid
2679154Lithium hydroxide, solution
2680154Lithium hydroxide
2680154Lithium hydroxide, monohydrate
2680154Lithium hydroxide, solid
2681154Caesium hydroxide, solution
2681154Cesium hydroxide, solution
2682157Caesium hydroxide
2682157Cesium hydroxide
2683132Ammonium sulfide, solution
2683132Ammonium sulphide, solution
26841323-Diethylaminopropylamine
2684132Diethylaminopropylamine
2685132N,N-Diethylethylenediamine
26861322-Diethylaminoethanol
2686132Diethylaminoethanol
2686132Diethylaminoethanol
2687133Dicyclohexylammonium nitrite
26881591-Bromo-3-chloropropane
26881591-Chloro-3-bromopropane
2689153Glycerol alpha-monochlorohydrin
2690152N,n-Butylimidazole
2691137Phosphorus pentabromide
2692157Boron tribromideYes
2693154Bisulfites, aqueous solution, n.o.s.
2693154Bisulfites, inorganic, aqueous solution, n.o.s.
2693154Bisulphites, aqueous solution, n.o.s.
2693154Bisulphites, inorganic, aqueous solution, n.o.s.
2698156Tetrahydrophthalic anhydrides
2699154Trifluoroacetic acid
2705153P1-Pentol
2707127Dimethyldioxanes
2708127Butoxyl
2709128Butylbenzenes
2710128Dipropyl ketone

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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