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 1754 through 1807

UN#GuideName of MaterialISO
Current as of: Oct. 2, 2011
1754137Chlorosulfonic acidYes
1754137Chlorosulfonic acid and Sulfur trioxide mixtureYes
1754137Chlorosulphonic acidYes
1754137Chlorosulphonic acid and Sulphur trioxide mixtureYes
1754137Sulfur trioxide and Chlorosulfonic acid mixtureYes
1754137Sulphur trioxide and Chlorosulphonic acid mixtureYes
1755154Chromic acid, solution
1756154Chromic fluoride, solid
1757154Chromic fluoride, solution
1758137Chromium oxychloride
1759154Corrosive solid, n.o.s.
1759154Ferrous chloride, solid
1759154Medicines, corrosive, solid, n.o.s.
1760154Chemical kit
1760154Compound, cleaning liquid (corrosive)
1760154Compound, tree or weed killing, liquid (corrosive)
1760154Corrosive liquid, n.o.s.
1760154Ferrous chloride, solution
1760154Medicines, corrosive, liquid, n.o.s.
1760154Titanium sulfate, solution
1760154Titanium sulphate, solution
1761154Cupriethylenediamine, solution
1764153Dichloroacetic acid
1765156Dichloroacetyl chloride
1768154Difluorophosphoric acid, anhydrous
1770153Diphenylmethyl bromide
1773157Ferric chloride
1773157Ferric chloride, anhydrous
1774154Fire extinguisher charges, corrosive liquid
1775154Fluoboric acid
1775154Fluoroboric acid
1776154Fluorophosphoric acid, anhydrous
1777137Fluorosulfonic acid
1777137Fluorosulphonic acid
1778154Fluorosilicic acid
1778154Fluosilicic acid
1778154Hydrofluorosilicic acid
1779153Formic acid
1779153Formic acid, with more than 85% acid
1780156Fumaryl chloride
1782154Hexafluorophosphoric acid
1783153Hexamethylenediamine, solution
1786157Hydrofluoric acid and Sulfuric acid mixture
1786157Hydrofluoric acid and Sulphuric acid mixture
1786157Sulfuric acid and Hydrofluoric acid mixture
1786157Sulphuric acid and Hydrofluoric acid mixture
1787154Hydriodic acid
1787154Hydriodic acid, solution
1788154Hydrobromic acid
1788154Hydrobromic acid, solution
1789157Hydrochloric acid
1789157Hydrochloric acid, solution
1789157Muriatic acid
1790157Hydrofluoric acid
1790157Hydrofluoric acid, solution
1791154Hypochlorite solution
1791154Hypochlorite solution, with more than 5% available Chlorine
1792157Iodine monochloride
1792157Iodine monochloride
1793153Isopropyl acid phosphate
1794154Lead sulfate, with more than 3% free acid
1794154Lead sulphate, with more than 3% free acid
1796157Nitrating acid mixture
1798157Aqua regia
1798157Nitrohydrochloric acid
1802140Perchloric acid, with not more than 50% acid
1803153Phenolsulfonic acid, liquid
1803153Phenolsulphonic acid, liquid
1805154Phosphoric acid
1805154Phosphoric acid, liquid
1805154Phosphoric acid, solid
1805154Phosphoric acid, solution
1806137Phosphorus pentachloride
1807137Phosphorus pentoxide

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


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: