How far apart must oxygen cylinders be from fuel gas cylinders in storage?

Oxygen cylinders must be stored at least 20 feet away from fuel gas cylinders or separated by a non-combustible barrier that is at least 5 feet tall. This requirement is critical in ensuring safety in environments where combustible gases and oxidizers are present. The rationale behind this regulation stems from the fact that oxygen supports combustion, and having it in close proximity to fuel gas can create significant fire hazards or explosions.

When oxygen and fuel gases are stored too close to each other, the risk of a fire can dramatically increase if there is a leak or if an ignition source is present. By maintaining the required distance or using an effective barrier, a safer environment is created, minimizing the chances of a dangerous incident occurring.

Other options provided are not in alignment with safety standards as set by regulatory bodies, which underscores the importance of knowing the correct distance for the safe storage of these materials in plumbing and related fields.