Flash ignition temperature	698°F (370° C)
Self ignition temperature	824°F (440°C)

 

TOXICITY

These toxicity tests results compare to the total sum of toxicity factors (carbon monoxide, carbon dioxide, and poisonous chemicals) found in the smoke of burning materials as compared to the smoke from burning red oak.
 

Material	Sum of Toxicity Factors
Polysteel Form	20
White Pine	50
Red Oak	100 (the standard)
PVC (poly vinyl chloride)	360
Wool	390
ABS (plastic pipe)	280
Urethane (rigid)	290
US Testing Co. Report No. 03298

 

FLAME SPREAD

The distance flame spreads from the igniting flame during a 10-minute fire exposure under controlled test conditions in a test tunnel.  The results of the test are compared to the flame spread on asbestos-cement board and the flame spread on an untreated red oak floor under similar fire exposure.
 

Material	Flame Spread
Asbestos-cement board	0
Polysteel Form	10 ft.
Untreated red oak flooring	100 ft.
Maximum accepted by Building Codes	75 ft.

 

SMOKE DEVELOPMENT

The amount of smoke developed during a standardized burning test in a test tunnel. The results are compared to the smoke developed by burning an asbestos-cement board and the smoke developed by burning a red oak floor under similar fire conditions during a 10-mintue period.  The amount of smoke development is determined by the light absorption percentage of the smoke using a photoelectric circuit operating across the test furnace flue pipe.
 

Material	Smoke Development
Asbestos-cement board	0
Untreated red oak flooring	100
Polysteel Form	Less than 300
Maximum accepted by Building Codes	450

Flame spread and smoke development test procedures according to ASTM E84-81a and similar to the following: UL-723, ANSI No. 2.5, NFPA No. 255, and UBC 42-1.