IEC standards download BS EN IEC 60296:2020 pdf download – Fluids for electrotechnical applications — Mineral insulating oils for electrical equipment BS EN IEC 60296:2020 pdf download - Fluids for electrotechnical applications — Mineral insulating oils for electrical equipment. ASTM D971 , Standard Test Method for Interfacial Tension of Oil Against Water by the Ring Method ASTM D1... 03-03 Download Now