13 const double k_m = 100;
16 const double k_um = 1.0E-4;
27 const double k_g = 1.0;
28 const double k_u = 1.6605402E-24;
46 const double k_eV = 1.0E-9;
51 const double k_to_J = 1.60217733E-10;
const double k_to_kg_per_m3
const double k_to_g_per_cm3
const double k_to_degrees
const double k_to_radians