When determining the appropriate gas supply pipe size, which factor is NOT considered?

When determining the appropriate gas supply pipe size, the color of the pipe is not a relevant factor. Pipe sizing involves critical considerations such as pipe length, gas pressure, and fuel type, as these elements directly affect the flow rate and safety of the gas supply system.

Pipe length influences resistance in the system, where longer distances can lead to a pressure drop that necessitates adjustments in pipe size to maintain an adequate flow. Gas pressure is another crucial aspect; it affects how much gas can effectively pass through the pipe without causing issues in performance or safety. Additionally, different fuel types can have varying properties, such as density and energy content, which influence the required pipe diameter.

In contrast, the color of the pipe does not impact its capacity to deliver gas or the safety of the gas supply system. Pipe color may indicate material type or manufacturer markings but does not factor into technical calculations related to gas flow and sizing. Therefore, it is correctly identified as the factor not considered during the sizing process.