SYMPOSIA PAPER Published: 01 January 1963

Flame-Spread Tests in a Large Tunnel Furnace


The purpose of this paper is to describe the 25-ft flame-spread tunnel furnace and to create a better understanding of its operation, capabilities, and limitations. In this discussion, the term “flame spread” is understood to mean “flaming combustion along a surface.” As such, it is a measure of the flame-retardant properties of a material and has little or nothing to do with fire resistance or fire endurance.

Author Information

Yuill, C
Southwest Research Inst., San Antonio, Tex.
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Developed by Committee: E05
Pages: 3–17
DOI: 10.1520/STP44502S
ISBN-EB: 978-0-8031-5987-7
ISBN-13: 978-0-8031-6141-2