Reagent |
Xylene |
Methyl tertiary-butyl ether |
Hazardous substance symbol |
harmful (Xn) |
irritant (Xi) |
Maximum permissible concentration |
100 mg/m3 |
300 mg/m3 |
Maximum permissible momentary concentration |
350 mg/m3 |
not established |
Topical exposure in rabbits |
intense irritation both eyes and skin |
slight irritation of the eyes and no irritation of the skin |
Inhalatory systemic exposure in rats (lethal concentration,50%) |
5 g/m3 |
23.57 g/m3 |