Oxygen cylinder storage shall be separate from fuel - gas cylinders or combustible materials (especially oil or grease) by at least a distance of what?

Oxygen cylinder storage shall be separate from fuel - gas cylinders or combustible materials (especially oil or grease) by at least a distance of what?

• A. 20 feet
• B. 10 feet
• C. 5 feet
• D. 50 feet

Answer: (A)

Keep oxygen separated from fuels and combustible materials to reduce the danger if a leak occurs. Oxygen itself isn’t flammable, but it makes fires burn much more intensely and with less ignition energy. If oil, grease, or other hydrocarbons are nearby, a small release of oxygen can cause those materials to ignite much more readily, so a substantial separation helps prevent that scenario. The minimum distance used in practice is 20 feet; this distance provides enough dilution and keeps ignition sources out of reach. Distances like 5 or 10 feet are too small to reliably prevent an oxygen-enriched environment from reaching flammable residues, while 50 feet is more conservative than required for typical storage areas.

Keep oxygen separated from fuels and combustible materials to reduce the danger if a leak occurs. Oxygen itself isn’t flammable, but it makes fires burn much more intensely and with less ignition energy. If oil, grease, or other hydrocarbons are nearby, a small release of oxygen can cause those materials to ignite much more readily, so a substantial separation helps prevent that scenario. The minimum distance used in practice is 20 feet; this distance provides enough dilution and keeps ignition sources out of reach. Distances like 5 or 10 feet are too small to reliably prevent an oxygen-enriched environment from reaching flammable residues, while 50 feet is more conservative than required for typical storage areas.