Class 8: Corrosive Substances

Corrosive substances are liquids or solids that cause full-thickness destruction of the skin at the site of contact within a specified period of time. A liquid that has a severe corrosion rate on steel or aluminum is also a corrosive material.

To meet the DOT definition of Hazard Class 8 corrosive materials are any substances with a pH of 2.0 or less (extreme acid hazard) or a pH of 12.5 or greater (extreme base hazard).

Examples include nitric acid, hydrochloric acid, sodium hydroxide, and sulfuric acid.

Image of a large black rectangular battery on a white background. On the top are two silver connectors. On the front in white lettering are the words BB Battery, BP8-6, underneath that the words sealed maintenance-free rechargeable battery.