Terms Used In New Hampshire Revised Statutes 339-A:6

• hazardous substance: means
  (a) Any substance or mixture of substances which is toxic, is corrosive, is an irritant, is a strong sensitizer, is flammable or generates pressure through decomposition, heat, or other means, if such substance or mixture of substances may cause substantial personal injury or substantial illness during or as a proximate result of any customary or reasonably foreseeable handling or use, including reasonably foreseeable ingestion by children;
  (b) Any substance which the commissioner by regulation finds, pursuant to the provisions of N. See New Hampshire Revised Statutes 339-A:2