oxygen tanks are usually green in the united states, however, no standard is adhered to uniformly.
green
Oxygen tank, Acetylene tank, regulators for each tank, hoses, a torch, and a striker. Check valves are also a good idea if they're not already installed.
It is usually green, but owner-bottles (those not owned and rented out by a welding company) can be any color. There should always be a label on all cylinders identifying the contents. Never go just by color.
i am almost sure its green
Acetylene is commonly used in welding with oxygen to create a high-temperature flame for cutting and welding metal.
Medical oxy is very pure, while welding oxy can contain significant amount of just about anything. A flame isn't as particular about what it's being fed with as a pair of lungs are. There is no difference in the gas, they both come out of the same tap. Gas suppliers are too cheap to have 2 separate containers for Oxygen so everything they sell is USP( that means it is safe for consumption). They 1 difference is a welding tank is not evacuated between refills and a medical tank is.
Oxygen tanks in dental offices are commonly green or white in color for easy identification and safety compliance.
NO! Hpa is compressed air, which is mostly N2. Filling a tank with pure oxygen has a large chance of combustion, which under such great pressures will cause death or serious injury.
Oxygen is an atmospheric gas that is unwanted in almost all welding processes because in it's molten state, metal oxidizes very easily and causes a weak joint. Weld surfaces are protected during the welding process to keep oxygen from contaminating the weld either by a shielding gas, flux, or in torch welding, the torches own exhaust. Occasionally however, oxygen may be added to the shielding gas mix in small amounts to stabilize the arc and reduce undercutting.
green
It could, though medical-grade oxygen is significantly more expensive than welding-grade oxygen so I'm not sure why you would want to do this.
You could repair a leaking fuel tank by taking it off of the vehicle and welding it. Once the welding has dried you may put it back on the vehicle.