Test Method for Fire Hazard Classification of Building Material, U.L. 723, Third Edition, Sept. 1963 printing.
2.
Small Tunnel Furnace Test for Measuring Surface Flammability No. 2097, Forest Products Laboratory, Madison 5, Wisconsin.
3.
Gross, D., Loftus, J. and Robertson, A. F., "A Method for Measuring Surface Flammability of Materials Using a Radiant Panel Energy Source," ASTM, 56, 1956.
4.
A Method of Measuring Smoke Density, Rohm and Haas.