What marking is required in addition to other requirements on cylinders?

The requirement for marking the application type on cylinders is particularly significant for safety and compliance reasons. This marking indicates the intended use of the cylinder, ensuring that it is utilized in an appropriate manner consistent with its designed purpose. Knowing the application type helps users identify whether the cylinder is suitable for storing or transporting specific types of gas under certain conditions.

In various regulatory standards, the application type may relate to the gases that the cylinder is approved to contain and the pressures it can safely withstand. This allows both operators and safety inspectors to assess whether the correct equipment is being used in the right context, thereby reducing the risks associated with improper use.

Other markings, such as the manufacturing date, owner's name, and material strength, while also important, serve different purposes primarily related to identification and verification of the cylinder's specifications but do not convey the practical use case which is critical to safe operations.