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CODATA recommended values of fundamental physico-chemical constants CODATA 2006 values as of 2007/03/30
namespace boost { namespace units { namespace si { namespace constants { namespace codata { // Avogadro constant. BOOST_UNITS_PHYSICAL_CONSTANT(N_A, quantity< inverse_amount >, 6.02214179e23/ mole, 3.0e16/ mole); // atomic mass constant BOOST_UNITS_PHYSICAL_CONSTANT(m_u, quantity< mass >, 1.660538782e-27 * kilograms, 8.3e-35 * kilograms); // Faraday constant. BOOST_UNITS_PHYSICAL_CONSTANT(F, quantity< electric_charge_over_amount >, 96485.3399 *coulombs/ mole, 2.4e-3 *coulombs/ mole); // molar gas constant BOOST_UNITS_PHYSICAL_CONSTANT(R, quantity< energy_over_temperature_amount >, 8.314472 *joules/kelvin/ mole, 1.5e-5 *joules/kelvin/ mole); // Boltzmann constant. BOOST_UNITS_PHYSICAL_CONSTANT(k_B, quantity< energy_over_temperature >, 1.3806504e-23 *joules/ kelvin, 2.4e-29 *joules/ kelvin); // Stefan-Boltzmann constant. BOOST_UNITS_PHYSICAL_CONSTANT(sigma_SB, quantity< power_over_area_temperature_4 >, 5.670400e-8 *watts/square_meter/pow< 4 >, 4.0e-13 *watts/square_meter/pow< 4 >); // first radiation constant BOOST_UNITS_PHYSICAL_CONSTANT(c_1, quantity< power_area >, 3.74177118e-16 *watt * square_meters, 1.9e-23 *watt * square_meters); // first radiation constant for spectral radiance BOOST_UNITS_PHYSICAL_CONSTANT(c_1L, quantity< power_area_over_solid_angle >, 1.191042759e-16 *watt *square_meters/ steradian, 5.9e-24 *watt *square_meters/ steradian); // second radiation constant BOOST_UNITS_PHYSICAL_CONSTANT(c_2, quantity< length_temperature >, 1.4387752e-2 *meter * kelvin, 2.5e-8 *meter * kelvin); // Wien displacement law constant : lambda_max T. BOOST_UNITS_PHYSICAL_CONSTANT(b, quantity< length_temperature >, 2.8977685e-3 *meter * kelvin, 5.1e-9 *meter * kelvin); // Wien displacement law constant : nu_max/T. BOOST_UNITS_PHYSICAL_CONSTANT(b_prime, quantity< frequency_over_temperature >, 5.878933e10 *hertz/ kelvin, 1.0e15 *hertz/ kelvin); } } } } }