A substance that will produce local irritation or inflammation on contact with tissues and membranes such as skin or eyes, or will, after inhalation, produce local irritation to nasal or lung tissue
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}