NF F19-809-3:1997 Railway rolling stock. "Extreme pressure" oils for mechanical transmissions of motive power units. Part 3 : high thermal stability oil. Endurance test method on fixed post machine.
1997NF F19-809-3:1997 Railway rolling stock. "Extreme pressure" oils for mechanical transmissions of motive power units. Part 3 : high thermal stability oil. Endurance test method on fixed post machine.