1.1 ,This practice2 covers the conversion tables and equations for converting kinematic viscosity in mm²/s at any temperature to Saybolt Universal viscosity in Saybolt Universal seconds (SUS) at the same temperature and for converting kinematic viscosity in mm²/s at 122 ,°,F and 210 ,°,F (50 ,°,C and 98.9 ,°,C) to Saybolt Furol viscosity in Saybolt Furol seconds (SFS) at the same temperatures. Kinematic viscosity values are based on water being 1.0034 ,mm²/s (cSt) at 68 ,°,F (20 ,°,C).