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+// Boost.Units - A C++ library for zero-overhead dimensional analysis and
+// unit/quantity manipulation and conversion
+//
+// Copyright (C) 2003-2008 Matthias Christian Schabel
+// Copyright (C) 2008 Steven Watanabe
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_UNITS_CODATA_PHYSICO_CHEMICAL_CONSTANTS_HPP
+#define BOOST_UNITS_CODATA_PHYSICO_CHEMICAL_CONSTANTS_HPP
+
+#include <boost/units/pow.hpp>
+#include <boost/units/static_constant.hpp>
+
+#include <boost/units/systems/detail/constants.hpp>
+#include <boost/units/systems/si/amount.hpp>
+#include <boost/units/systems/si/area.hpp>
+#include <boost/units/systems/si/electric_charge.hpp>
+#include <boost/units/systems/si/energy.hpp>
+#include <boost/units/systems/si/frequency.hpp>
+#include <boost/units/systems/si/mass.hpp>
+#include <boost/units/systems/si/power.hpp>
+#include <boost/units/systems/si/solid_angle.hpp>
+#include <boost/units/systems/si/temperature.hpp>
+
+#include <boost/units/systems/si/codata/typedefs.hpp>
+
+/// \file
+/// 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 {
+
+// PHYSICO-CHEMICAL
+/// 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>(kelvin),4.0e-13*watts/square_meter/pow<4>(kelvin));
+/// 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);
+
+} // namespace codata
+
+} // namespace constants
+
+} // namespace si
+
+} // namespace units
+
+} // namespace boost
+
+#endif // BOOST_UNITS_CODATA_PHYSICO_CHEMICAL_CONSTANTS_HPP