Graduates from the Biological Sciences program will have demonstrated: An understanding of the tenets of modern biology and an understanding of how cellular functions are integrated from the molecular level to the cellular level, through to the level of organism, populations and functioning ecosystems.
Toxic hazard studies of flexible polyurethane foam include small scale testing and large. scale testing. The combustion modes examined include thermal decomposition, smoldering, and open flaming, and under ventilated flaming combustion. Of the small-. scale studies, only a few include smoldering foam.
There is also a plastic looking type. I can't think of the name but it looks like plastic over a coiling rather than foil. I personally hate flex and we limit its use highly via spec because I've seen cases where 5 ft of flex cause more pressure drop than 100 ft of rigid.