According to propane regulations, what must be clearly marked on containers?

The requirement for containers to have a clearly marked content type is based on safety and regulatory standards in the propane industry. Marking containers with the type of content allows users to identify what is inside quickly and ensures that the correct handling procedures are followed. By clearly labeling the contents, the risk of misuse or accidental exposure to hazardous substances is minimized, enhancing the safety of both personnel and the public.

In the context of propane, it's especially important because different gases have varying properties, behaviors, and risks associated with them. Proper labeling aids in emergency situations where immediate action might be necessary, such as in the event of a leak or fire. Having the content type marked is essential for compliance with safety regulations and helps in maintaining a safe working environment.