Calculate the density of the air from the ideal gas law: P/ (RT) 105 Pa/ (287.05 J/kg·K × 323.15 K) 1.078 kg/m3. You can calculate pre-filled values of oil classified by ISO 3448 with grades VG22, VG32, VG46 or VG68 (at viscosity Index = 100) or enter specific values for any other oils. ASTM D2270 Practice for Calculating Viscosity Index from Kinematic Viscosity at 40C and 100C Oil viscosity (see ASTM D445) typically decreases as. To calculate the kinematic viscosity of air at pressure 1 bar (105 Pa) and 50 ☌, enter a few details into the kinematic viscosity of air calculator: Convert the temperature in Celsius to kelvin: T 273.15 K + 50 323.15 K. These data is enough to determine kinematic viscosity at any other values of temperature and as well Viscosity Index. the Viscosity Index (VI) by the formulas specified in ASTM D2270 (`Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 and 100☌ 1`) or in ISO 2909 (`Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 and 100☌ 1`) or in ГОСТ 25371-2018 (`Нефтепродукты.the kinematic viscosity values, depends from temperature, calculated by the formulas specified in ASTM D341 – (‘Standard Practice for Viscosity-Temperature Charts for Liquid Petroleum Products’).The interpolation calculator provided below is used to determine:
