PROPANE (C3H8)

Colorless easily liquefied gaseous hydrocarbon.
Heavier than air, density = 1,8580 kg/m3
Lower explosive limit (LEL) = 1,7 %vol * / 2,1 %vol **
Health exposure limits :
8 hours TWA = 1000 ppm
* according to EU standards (‘stirred’ concentration of gas)
** according to US standard (‘still gas’ method)