1994NF E48-371:1994 Hydraulic fluid power. Rotary shaft lip type seals. Dimensions and characteristics of housing and shaft.
NF E48-372-1*NF ISO 6194-1:2011 Rotary shaft lip-type seals incorporating elastomeric sealing elements - Part 1 : nominal dimensions and tolerances. was changed to GMKOREA EDS-M-8773-2012 .