Flammability Index (FI) 1 : That index number for flammability, which is determined according to the standard test method for flammability of thin flexible materials
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}