초록 |
Hydrogen chloride (HCl) gas is an incapacitating irritant. It is evolved from burning PVC, and other chlorine containging plastics. The experimental evidence of the concentration effects on a range of animal species has been reviewed. Experimental data is presented from burning unplasticised PVC, plasticzed PVC cable, and LDPE to show that HCl interferes with the flame chemistry, particularly the conversion of CO to CO2, further increasing the hazard from the fire effluent. The product yields are used to estimate the fire effluent toxicity, comparing the satndard based on rat lethallity. |