Wooden rack for cylinder storage may be permitted under which conditions?

• A. They must be located in an area with a fire suppression system
• B. The wood must be painted
• C. Wooden racks are no longer permitted
• D. They are permitted with NO set conditions

Answer: (C)

The main idea is that cylinder storage must use noncombustible, fire‑resistant supports. Wood is combustible and can deteriorate with moisture, making wooden racks a fire hazard and less reliable under heat or impact. Modern safety standards require racks made of metal or other noncombustible materials that are fixed in place, provide proper clearance and ventilation, and keep cylinders upright and secure. There is no acceptable scenario where wooden racks are allowed; they are no longer permitted. This emphasis on noncombustible, well‑constructed storage helps minimize fire risk and protects the cylinders and personnel.