NF F19-809-1:2012 Railway rolling stock - Extreme pressure oils for mechanical transmissions of tractive units - Part 1 : moderate thermal stability oils
2012NF F19-809-1:2012 Railway rolling stock - Extreme pressure oils for mechanical transmissions of tractive units - Part 1 : moderate thermal stability oils
1994NF F19-809-1:1994 Railway rolling stock. Oils at "extreme pressure" for the mechanical transmissions of motive power units. Part 1 : mineral oils.