Gas bottles, also known as cylinders or propane bottles, are cylindrical-shaped metal items that hold liquid or compressed gases at pressure above atmospheric levels. They have thick metal walls and a pressure release valve at one end. Cylinders are often made of carbon steel, but they may be made of stainless or aluminium alloys. They are used in a wide variety of applications, from laboratory environments to manufacturing and industrial settings, and even medical facilities. Because they contain highly pressurised materials, handling cylinders can be dangerous. The gases they hold are often flammable and/or toxic, so safety regulations must be followed closely when working with them.

There are many different types of gas cylinders, each with its own application. The three most common types are oxygen, acetylene and LPG (Liquefied Petroleum Gas). The oxygen cylinders typically used in workplaces can be identified by their color code – white for medical grade oxygen and graphite gray for industrial gases except acetylene.

The acetylene cylinders are also easily identifiable. They are marked with a red acetone logo, which can be seen when the lid is lifted. The acetone dissolves to release the acetylene, which is then used for welding and cutting operations. Finally, the LPG cylinders are usually marked with their tare weight and the type of gas inside.

Cylinders are often chained to a fixed object or transport cart when not in use, in order to prevent them from falling and damaging the valve. In addition, they are normally stored in a well-ventilated area to allow any released gas to dissipate quickly and reduce the risk of an explosion or fire.

In addition to being locked or chained to an object, cylinders should be kept away from heat sources, oxidizers and ignition tools. In particular, they should not be left near heaters, naked flames, pilot lights or any other devices that produce sparks, such as mobile phones or remote control cars.

Because cylinders are filled with gas at high pressure, there is always the risk that they could explode or rupture under the extreme conditions of heat, cold or vibration. As such, they should be stored in a secure and well-ventilated environment and should never be exposed to extreme temperatures or moisture.

Cylinders should be tagged and stored according to the safety guidelines provided by their suppliers. It is important to check that these tags are still legible, and to update them when the cylinders change contents. Additionally, it is important to keep the cylinders in an environment where they are not at risk of being punctured or damaged by sharp objects. Finally, the cylinders should be labelled with their contents and other information, including the manufacturer’s name and contact details. This can help ensure that the cylinders are correctly and safely used in workplaces.