Intermittent Flame Exposure Test 2 : A flame test in which a roof specimen is exposed to flames at intervals from 3 to 15 times, depending on the classification of the material
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}