DIN 51515-2
DIN 51515-2 Lubricants and governor fluids for turbines - Minimum requirements - Part 2: Turbine oils TG for high temperature service
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2010
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2010