Piping systems shall consist of what type of information about the contents?

Piping systems must include key information about the contents to ensure safety and proper operation. The inclusion of the name of the contents and the direction of flow is crucial for several reasons. Knowing the specific material flowing through the pipes helps identify potential hazards, allows for appropriate handling practices, and aids in emergency responses in case of leaks or spills. Additionally, understanding the direction of flow is essential for maintenance and troubleshooting, as it ensures that any work done on the system matches the design and operational needs. This information minimizes the risk of accidents and ensures that operators and maintenance personnel can effectively manage the system.

The other options do not provide a comprehensive view of what is necessary for safe and effective management of piping systems. While pressure, flow rates, and capacity are important metrics, they are secondary to understanding the specific contents and flow direction, which directly impact safety procedures and operational efficiency.