GOST 2789-1973 Surface roughness. Parameters and characteristics*, 1973-04-19 Update
GOST 33-1982 Petroleum products. Method for determination of kinematic viscosity and calculation of dynamic viscosity*, 1982-04-19 Update
GOST 33-2000 Petroleum products. Transparent and opaque liquids. Determination of kinematic viscosity and calculation of dynamic viscosity*, 2024-04-19 Update