What is one indication of potential corrosion to a gas facility?

The presence of rust or discoloration is a significant indication of potential corrosion to a gas facility. Corrosion occurs when materials, particularly metals, deteriorate due to chemical reactions, often facilitated by moisture and environmental conditions. Rust is a specific form of corrosion that typically affects iron and its alloys, indicating the presence of oxidation which can compromise the integrity of gas infrastructure. Discoloration can also indicate that the protective coating on pipes has been degraded or that moisture is present, both of which can lead to further deterioration.

In contrast, stable gas pressure, high efficiency in gas delivery, and regular inspections without issues do not directly signal corrosion. They are indicators of operational performance and maintenance practices but do not inherently reflect the physical condition of the materials or any potential corrosive processes at play. Regular inspections, while important, rely on visible signs like rust or discoloration to identify underlying issues related to corrosion.