Terms for subject General containing specific surface area

English	Russian
specific surface area	удельная площадь поверхности (Specific surface area "SSA" is a property of solids which is the total surface area of a material per unit of mass, solid or bulk volume, or cross-sectional area. WAD Alexander Demidov)
volume specific surface area	объёмная удельная площадь поверхности (ambassador)