Why is a material safety data sheet mandatory for transformer oil use?

It is mandatory because transformer oil is a chemical product used in industrial environments with fire, spill, and exposure risks. The SDS provides standardized hazard information and control measures required by workplace safety laws. It enables training, correct PPE selection, safe storage, and consistent emergency response. It also supports compliance audits, contractor controls, and insurance requirements. Without an SDS, organizations cannot reliably manage chemical risk or meet legal obligations for hazard communication and documentation.