What is the minimum distance that stored oxyfuel cylinders must be separated by?

The minimum distance that stored oxyfuel cylinders must be separated by is correctly identified as 20 feet. This requirement is crucial for safety considerations in an environment where flammable gases and oxygen are stored. The separation distance is designed to minimize the risk of fire or explosion that could occur if both gases are compromised or if a spark were to ignite an adjacent ignition source. By maintaining a distance of 20 feet, the likelihood of accidents is reduced significantly.

In environments where cylinders are in use, proper storage practices, including separation, ensure that the two gases do not come into contact inappropriately. Other choices, such as 10, 15, and 25 feet, do not meet the regulatory standards or guidelines typically set by safety organizations. Maintaining the established 20 feet provides a balance between practicality and safety in handling these materials, promoting a safer work environment for ironworkers.