"Monroe" wrote in message
...
Ah, my err. Wrong term/explanation there. Not the issue of
flammability of the product, rather the potential for ignition of
fugitive volatile emissions (and acute releases) from static
discharges associated with the product.
Huh? Never heard of a problem with static discharge.
But for my application, these panels then do not contribute to
combustion w/o maintenance of a soure of ignition? This sounds
reasonable for use as insulation for paneling in a knock-down system.
Time to check out local building codes for even a temporary structure.
Thanks
http://www.huntsman.com/polymers/Media/EPS7-7.3.pdf
FLAMMABILITY
Both the expandable polystyrene and expanded polystyrene products must be
considered
combustible when directly exposed to fire of sufficient intensity and heat.
Therefore, neither
should be stored nor installed near open flame or ignition sources.
The modified grades of expandable polystyrene contain flame-retardants
designed to
decrease flammability due to accidental ignition from a small flame source.
The expanded
polystyrene manufactured from these products have been tested in numerous
small scale
fire tests and meet the requirements of the nation's building codes and
applicable industrial,
federal, and state requirements.
THE RESULTS OF THESE TESTS ARE NOT INTENDED TO REFLECT HAZARDS
UNDER ACTUAL FIRE CONDITIONS.
Flammability Characteristics
Recommended Maximum Use Temperatu 165ºF (75ºC)
Melting Point: As a thermoplastic, polystyrene does not exhibit a true
melting point. It will
begin to soften at about 212ºF (100ºC) and, as more heat is applied, melting
occurs.
Flash Ignition Temperature*: The lowest initial
temperature of air passing around a molded sample
of EPS at which a sufficient amount of combustible gas
is evolved to be ignited (ASTM D 1929). 698ºF (370ºC)
Self Ignition Temperature*: The lowest initial temperature of
air passing around the specimen at which, in the absence
of an ignition source, the self-heating properties of the EPS lead
to ignition or ignition occurs of itself. (ASTM D1929) 752ºF (400ºC)
Potential Heat of Building Materials ** A property-type
measurement of the heat that could be potentially released 17,293 BTU