Where can I find a transformer oil colour chart?

You can find a transformer oil colour chart in several places. The chart is typically included in technical documentation and product manuals provided by transformer oil manufacturers. Additionally, many industrial oil suppliers and distributors have this chart available on their websites or as part of their product literature. You can also access transformer oil colour charts through industry standards organizations, such as ASTM or IEC, which provide guidelines and specifications for assessing the quality and condition of transformer oils. Documenting the colour can help identify potential contamination or degradation of the oil, making these charts a valuable resource for maintenance and monitoring purposes.