Tunnel Test 3 : The popular name for a standard surface burning test of building materials, the details of which are given in ASTM Procedure E-84. See also|: Steiner Tunnel Test
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}