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 2823 through 2905

UN#GuideName of MaterialISO
Current as of: Oct. 2, 2011
2823153Crotonic acid
2823153Crotonic acid, liquid
2823153Crotonic acid, solid
2826155Ethyl chlorothioformateYes
2829153Caproic acid
2829153Hexanoic acid
2830139Lithium ferrosilicon
2834154Phosphorous acid
2834154Phosphorous acid, ortho
2835138Sodium aluminum hydride
2837154Bisulfates, aqueous solution
2837154Bisulphates, aqueous solution
2837154Sodium bisulfate, solution
2837154Sodium bisulphate, solution
2837154Sodium hydrogen sulfate, solution
2837154Sodium hydrogen sulphate, solution
2838129PVinyl butyrate, stabilized
2844138Calcium manganese silicon
2845135Ethyl phosphonous dichloride, anhydrousYes
2845135Methyl phosphonous dichlorideYes
2845135Pyrophoric liquid, n.o.s.
2845135Pyrophoric liquid, organic, n.o.s.
2846135Pyrophoric solid, n.o.s.
2846135Pyrophoric solid, organic, n.o.s.
2850128Propylene tetramer
2851157Boron trifluoride, dihydrate
2852113Dipicryl sulfide, wetted with not less than 10% water
2852113Dipicryl sulphide, wetted with not less than 10% water
2853151Magnesium fluorosilicate
2853151Magnesium silicofluoride
2854151Ammonium fluorosilicate
2854151Ammonium silicofluoride
2855151Zinc fluorosilicate
2855151Zinc silicofluoride
2856151Fluorosilicates, n.o.s.
2856151Silicofluorides, n.o.s.
2857126Refrigerating machines, containing Ammonia solutions (UN2672)
2857126Refrigerating machines, containing non-flammable, non-poisonous gases
2857126Refrigerating machines, containing non-flammable, non-toxic gases
2858170Zirconium, dry, coiled wire, finished metal sheets or strips
2859154Ammonium metavanadate
2861151Ammonium polyvanadate
2862151Vanadium pentoxide
2863154Sodium ammonium vanadate
2864151Potassium metavanadate
2865154Hydroxylamine sulfate
2865154Hydroxylamine sulphate
2869157Titanium trichloride mixture
2870135Aluminum borohydride
2870135Aluminum borohydride in devices
2871170Antimony powder
2874153Furfuryl alcohol
2878170Titanium sponge granules
2878170Titanium sponge granules
2878170Titanium sponge powders
2878170Titanium sponge powders
2879157Selenium oxychloride
2879157Selenium oxychloride
2880140Calcium hypochlorite, hydrated mixture, with not less than 5.5% but not more than 16% water
2880140Calcium hypochlorite, hydrated, with not less than 5.5% but not more than 16% water
2881135Metal catalyst, dry
2881135Nickel catalyst, dry
2881135Nickel catalyst, dry
2900158Infectious substance, affecting animals only
2901124Bromine chlorideYes
2902151Pesticide, liquid, poisonous, n.o.s.
2902151Pesticide, liquid, toxic, n.o.s.
2903131Pesticide, liquid, poisonous, flammable, n.o.s.
2903131Pesticide, liquid, toxic, flammable, n.o.s.
2904154Chlorophenates, liquid
2904154Chlorophenolates, liquid
2904154Phenolates, liquid
2905154Chlorophenates, solid
2905154Chlorophenolates, solid
2905154Phenolates, solid

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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