Chlorine cylinders should be stored

• A. Below ground level
• B. On their side
• C. In a clean, dry location
• D. With the protective caps off

Answer: (C)

Chlorine cylinders are stored in a clean, dry location to protect the cylinder and its valve from moisture, dust, and other contaminants that can cause corrosion or damage. A dry, clean environment helps maintain the integrity of the cylinder and reduces the chance of leaks or contamination that could lead to dangerous releases.

Storing below ground level can create ventilation and monitoring challenges and increase risk in the event of a release. Storing a cylinder on its side can put stress on the valve and connections, increasing the likelihood of leaks. Leaving protective caps off exposes the valve to dust, moisture, and potential impacts, which can cause damage or accidental release.