Colorless to brown liquid, faintly fruity odor. Odorless in pure form. All persons not engaged in extinguishing the fire should be immediately evacuated from the area. Fires involving GA should be contained to prevent contamination to uncontrolled areas.
Respiratory protection is required.
Do not breathe fumes. Skin contact with nerve agents must be avoided at all times. Although the fire may destroy most of the agent, care must still be taken to assure the agent or contaminated liquids do not further contaminate other areas or sewers. Contact with liquid GA or vapors can be fatal. Fires involving this chemical may result in the formation of hydrogen cyanide.