Why Is the Knowledge Level on Demulsibility Still So Limited? Demulsibility is one of the most important properties in steam-turbine lubrication, yet it is still one of the least understood. ASTM D4378 treats water separation by ASTM D1401 as a suggested monitoring item for steam and combined-cycle systems, and it explains why: water enters through … Continue reading Why Is the Knowledge Level on Demulsibility Still So Limited?