In addition to flammability of fabrics be aware of changes that may occur as a result of cleaning and laundering them. Fabric softeners are parafin based substances that burn very readily (candles). Also some dry-cleaning solvents are extremely volatile as well as neurotoxic. When some synthetics catch fire they become extremely neurotoxic so be careful of what you breath when experimenting on fabric flammability. Also be aware that many substances act synergistically (the whole is greater than the parts) when combined. So be careful if you are already exposed to other chemical substances and observe all safety precautions. O'Neille