What type of eye protection is required when handling anhydrous ammonia?

When handling anhydrous ammonia, chemical splash goggles are essential to provide adequate protection for the eyes. Anhydrous ammonia is a hazardous substance that can cause severe burns and irritation upon contact, particularly because it can rapidly vaporize and create ammonia gas that can irritate the eyes and respiratory system.

Chemical splash goggles are specifically designed to form a tight seal around the eyes, preventing any chemical splashes or vapors from entering. They provide a higher level of protection compared to standard safety glasses, which may not offer sufficient coverage or seal against chemical exposure.

Face shields, while useful, do not provide adequate protection on their own as they can leave gaps where splashes can occur. Additionally, wearing contact lenses in environments where exposure to chemicals like anhydrous ammonia is possible is discouraged because they can trap the chemical against the eye, increasing the risk of damage in the event of a spill or vapor exposure.

Thus, the use of chemical splash goggles is a critical safety measure when handling substances like anhydrous ammonia, ensuring that the eyes are adequately protected from potential exposure.