How much gas can be put into a compressed gas cylinder?

Answer 1

When we fill a cylinder with compressed gas, we do so based on a strict set of guidelines. The cylinder must be the correct type for that gas. It must have a "recent" hydrostatic test date, or in cannot be filled per procedures and codes. It must be filled at a "legit" filling station (with proper equipment) by someone who is trained and knowledgeable in the transfer of compressed gas. The amount of gas that can be put in a cylinder is usually measured in cubic feet at a given pressure. That pressure will not exceed the rated pressure of the cyclinder. (Ambient temperature, or some specified temperature, is assumed.) Calculations can be made as to how much gas is in a cylinder, and they involve the type of gas, the temperature of the gas, the pressure of the gas, and the volume into which it is compressed. Cylinders come in a wide range of sizes (volumes) as well as a range of rated pressures, and the vessels are stamped with those ratings, as well as the date of the hydrostatic test that determined the fitness of the cylinder. The cylinder being filled will heat up if it is being filled by a compressor instead of from a storage tank (like at a Scuba tank filling station). There are some other variables that must be taken into consideration when filling a tank with compressed gas. Fatalities occur now and then that are associated with the failure of a tank. As there is no definite answer for the question owing to the lack of specifics. Only a general reply can be made.