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{"name":"alpha particle mass","value":6.64466e-27,"uncert":2e-36,"sf_value":11,"sf_uncert":2,"units":"kg"}
{"name":"alpha particle mass energy equivalent","value":5.97192e-10,"uncert":1.8e-19,"sf_value":11,"sf_uncert":2,"units":"J"}
{"name":"alpha particle mass energy equivalent in MeV","value":3727.37941,"uncert":1.1e-06,"sf_value":11,"sf_uncert":2,"units":"MeV"}
{"name":"alpha particle mass in u","value":4.00151,"uncert":6.3e-11,"sf_value":13,"sf_uncert":2,"units":"u"}
{"name":"alpha particle molar mass","value":0.004,"uncert":1.2e-12,"sf_value":11,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"alpha particle-proton mass ratio","value":3.9726,"uncert":2.2e-10,"sf_value":12,"sf_uncert":2}
{"name":"alpha particle relative atomic mass","value":4.00151,"uncert":6.3e-11,"sf_value":13,"sf_uncert":2}
{"name":"Angstrom star","value":1.00001e-10,"uncert":9e-17,"sf_value":9,"sf_uncert":2,"units":"m"}
{"name":"atomic mass constant","value":1.66054e-27,"uncert":5e-37,"sf_value":12,"sf_uncert":2,"units":"kg"}
{"name":"atomic mass constant energy equivalent","value":1.49242e-10,"uncert":4.5e-20,"sf_value":12,"sf_uncert":2,"units":"J"}
{"name":"atomic mass constant energy equivalent in MeV","value":931.4941,"uncert":2.8e-07,"sf_value":11,"sf_uncert":2,"units":"MeV"}
{"name":"atomic mass unit-electron volt relationship","value":931494102.42,"uncert":0.28,"sf_value":11,"sf_uncert":2,"units":"eV"}
{"name":"atomic mass unit-hartree relationship","value":34231776.874,"uncert":0.01,"sf_value":11,"sf_uncert":2,"units":"E_h"}
{"name":"atomic mass unit-hertz relationship","value":2.25234271871e+23,"uncert":68000000000000,"sf_value":12,"sf_uncert":2,"units":"Hz"}
{"name":"atomic mass unit-inverse meter relationship","value":751300661040000,"uncert":230000,"sf_value":11,"sf_uncert":2,"units":"m^-1"}
{"name":"atomic mass unit-joule relationship","value":1.49242e-10,"uncert":4.5e-20,"sf_value":12,"sf_uncert":2,"units":"J"}
{"name":"atomic mass unit-kelvin relationship","value":10809540191600,"uncert":3300,"sf_value":12,"sf_uncert":2,"units":"K"}
{"name":"atomic mass unit-kilogram relationship","value":1.66054e-27,"uncert":5e-37,"sf_value":12,"sf_uncert":2,"units":"kg"}
{"name":"atomic unit of 1st hyperpolarizability","value":3.20636e-53,"uncert":1.5e-62,"sf_value":11,"sf_uncert":2,"units":"C^3 m^3 J^-2"}
{"name":"atomic unit of 2nd hyperpolarizability","value":6.23538e-65,"uncert":3.8e-74,"sf_value":11,"sf_uncert":2,"units":"C^4 m^4 J^-3"}
{"name":"atomic unit of action","value":1.05457e-34,"sf_value":10,"units":"J s"}
{"name":"atomic unit of charge","value":1.60218e-19,"sf_value":10,"units":"C"}
{"name":"atomic unit of charge density","value":1081202384570,"uncert":490,"sf_value":12,"sf_uncert":2,"units":"C m^-3"}
{"name":"atomic unit of current","value":0.00662,"uncert":1.3e-14,"sf_value":13,"sf_uncert":2,"units":"A"}
{"name":"atomic unit of electric dipole mom.","value":8.47835e-30,"uncert":1.3e-39,"sf_value":11,"sf_uncert":2,"units":"C m"}
{"name":"atomic unit of electric field","value":514220674763,"uncert":78,"sf_value":12,"sf_uncert":2,"units":"V m^-1"}
{"name":"atomic unit of electric field gradient","value":9.717362429199999e+21,"uncert":2900000000000,"sf_value":11,"sf_uncert":2,"units":"V m^-2"}
{"name":"atomic unit of electric polarizability","value":1.64878e-41,"uncert":5e-51,"sf_value":12,"sf_uncert":2,"units":"C^2 m^2 J^-1"}
{"name":"atomic unit of electric potential","value":27.21139,"uncert":5.3e-11,"sf_value":14,"sf_uncert":2,"units":"V"}
{"name":"atomic unit of electric quadrupole mom.","value":4.48655e-40,"uncert":1.4e-49,"sf_value":11,"sf_uncert":2,"units":"C m^2"}
{"name":"atomic unit of energy","value":4.35974e-18,"uncert":8.5e-30,"sf_value":14,"sf_uncert":2,"units":"J"}
{"name":"atomic unit of force","value":8.23872e-08,"uncert":1.2e-17,"sf_value":11,"sf_uncert":2,"units":"N"}
{"name":"atomic unit of length","value":5.29177e-11,"uncert":8e-21,"sf_value":12,"sf_uncert":2,"units":"m"}
{"name":"atomic unit of mag. dipole mom.","value":1.8548e-23,"uncert":5.6e-33,"sf_value":12,"sf_uncert":2,"units":"J T^-1"}
{"name":"atomic unit of mag. flux density","value":235051.75676,"uncert":0.00007,"sf_value":12,"sf_uncert":2,"units":"T"}
{"name":"atomic unit of magnetizability","value":7.89104e-29,"uncert":4.8e-38,"sf_value":11,"sf_uncert":2,"units":"J T^-2"}
{"name":"atomic unit of mass","value":9.10938e-31,"uncert":2.8e-40,"sf_value":11,"sf_uncert":2,"units":"kg"}
{"name":"atomic unit of momentum","value":1.99285e-24,"uncert":3e-34,"sf_value":12,"sf_uncert":2,"units":"kg m s^-1"}
{"name":"atomic unit of permittivity","value":1.11265e-10,"uncert":1.7e-20,"sf_value":12,"sf_uncert":2,"units":"F m^-1"}
{"name":"atomic unit of time","value":2.41888e-17,"uncert":4.7e-29,"sf_value":14,"sf_uncert":2,"units":"s"}
{"name":"atomic unit of velocity","value":2187691.26364,"uncert":0.00033,"sf_value":12,"sf_uncert":2,"units":"m s^-1"}
{"name":"Avogadro constant","value":6.0221407599999999e+23,"sf_value":9,"units":"mol^-1"}
{"name":"Bohr magneton","value":9.27401e-24,"uncert":2.8e-33,"sf_value":11,"sf_uncert":2,"units":"J T^-1"}
{"name":"Bohr magneton in eV/T","value":0.00006,"uncert":1.7e-14,"sf_value":11,"sf_uncert":2,"units":"eV T^-1"}
{"name":"Bohr magneton in Hz/T","value":13996244936.1,"uncert":4.2,"sf_value":12,"sf_uncert":2,"units":"Hz T^-1"}
{"name":"Bohr magneton in inverse meter per tesla","value":46.68645,"uncert":1.4e-08,"sf_value":11,"sf_uncert":2,"units":"m^-1 T^-1"}
{"name":"Bohr magneton in K/T","value":0.67171,"uncert":2e-10,"sf_value":11,"sf_uncert":2,"units":"K T^-1"}
{"name":"Bohr radius","value":5.29177e-11,"uncert":8e-21,"sf_value":12,"sf_uncert":2,"units":"m"}
{"name":"Boltzmann constant","value":1.38065e-23,"sf_value":7,"units":"J K^-1"}
{"name":"Boltzmann constant in eV/K","value":0.00009,"sf_value":10,"units":"eV K^-1"}
{"name":"Boltzmann constant in Hz/K","value":20836619120,"sf_value":10,"units":"Hz K^-1"}
{"name":"Boltzmann constant in inverse meter per kelvin","value":69.50348,"sf_value":10,"units":"m^-1 K^-1"}
{"name":"characteristic impedance of vacuum","value":376.73031,"uncert":5.7e-08,"sf_value":12,"sf_uncert":2,"units":"ohm"}
{"name":"classical electron radius","value":2.81794e-15,"uncert":1.3e-24,"sf_value":11,"sf_uncert":2,"units":"m"}
{"name":"Compton wavelength","value":2.42631e-12,"uncert":7.3e-22,"sf_value":12,"sf_uncert":2,"units":"m"}
{"name":"conductance quantum","value":0.00008,"sf_value":10,"units":"S"}
{"name":"conventional value of ampere-90","value":1,"sf_value":12,"units":"A"}
{"name":"conventional value of coulomb-90","value":1,"sf_value":12,"units":"C"}
{"name":"conventional value of farad-90","value":1,"sf_value":11,"units":"F"}
{"name":"conventional value of henry-90","value":1,"sf_value":12,"units":"H"}
{"name":"conventional value of Josephson constant","value":483597900000000,"sf_value":7,"units":"Hz V^-1"}
{"name":"conventional value of ohm-90","value":1,"sf_value":12,"units":"ohm"}
{"name":"conventional value of volt-90","value":1,"sf_value":12,"units":"V"}
{"name":"conventional value of von Klitzing constant","value":25812.807,"sf_value":8,"units":"ohm"}
{"name":"conventional value of watt-90","value":1,"sf_value":12,"units":"W"}
{"name":"Copper x unit","value":1.00208e-13,"uncert":2.8e-20,"sf_value":9,"sf_uncert":2,"units":"m"}
{"name":"deuteron-electron mag. mom. ratio","value":-0.00047,"uncert":1.2e-12,"sf_value":10,"sf_uncert":2}
{"name":"deuteron-electron mass ratio","value":3670.48297,"uncert":1.3e-07,"sf_value":12,"sf_uncert":2}
{"name":"deuteron g factor","value":0.85744,"uncert":2.2e-09,"sf_value":10,"sf_uncert":2}
{"name":"deuteron mag. mom.","value":4.33074e-27,"uncert":1.1e-35,"sf_value":10,"sf_uncert":2,"units":"J T^-1"}
{"name":"deuteron mag. mom. to Bohr magneton ratio","value":0.00047,"uncert":1.2e-12,"sf_value":10,"sf_uncert":2}
{"name":"deuteron mag. mom. to nuclear magneton ratio","value":0.85744,"uncert":2.2e-09,"sf_value":10,"sf_uncert":2}
{"name":"deuteron mass","value":3.34358e-27,"uncert":1e-36,"sf_value":11,"sf_uncert":2,"units":"kg"}
{"name":"deuteron mass energy equivalent","value":3.00506e-10,"uncert":9.1e-20,"sf_value":12,"sf_uncert":2,"units":"J"}
{"name":"deuteron mass energy equivalent in MeV","value":1875.61294,"uncert":5.7e-07,"sf_value":12,"sf_uncert":2,"units":"MeV"}
{"name":"deuteron mass in u","value":2.01355,"uncert":4e-11,"sf_value":13,"sf_uncert":2,"units":"u"}
{"name":"deuteron molar mass","value":0.00201,"uncert":6.1e-13,"sf_value":12,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"deuteron-neutron mag. mom. ratio","value":-0.44821,"uncert":1.1e-07,"sf_value":8,"sf_uncert":2}
{"name":"deuteron-proton mag. mom. ratio","value":0.30701,"uncert":7.9e-10,"sf_value":11,"sf_uncert":2}
{"name":"deuteron-proton mass ratio","value":1.99901,"uncert":1.1e-10,"sf_value":12,"sf_uncert":2}
{"name":"deuteron relative atomic mass","value":2.01355,"uncert":4e-11,"sf_value":13,"sf_uncert":2}
{"name":"deuteron rms charge radius","value":2.12799e-15,"uncert":7.4e-19,"sf_value":6,"sf_uncert":2,"units":"m"}
{"name":"electron charge to mass quotient","value":-175882001076,"uncert":53,"sf_value":12,"sf_uncert":2,"units":"C kg^-1"}
{"name":"electron-deuteron mag. mom. ratio","value":-2143.92349,"uncert":5.6e-06,"sf_value":11,"sf_uncert":2}
{"name":"electron-deuteron mass ratio","value":0.00027,"uncert":9.6e-15,"sf_value":13,"sf_uncert":2}
{"name":"electron g factor","value":-2.00232,"uncert":3.5e-13,"sf_value":15,"sf_uncert":2}
{"name":"electron gyromag. ratio","value":176085963023,"uncert":53,"sf_value":12,"sf_uncert":2,"units":"s^-1 T^-1"}
{"name":"electron gyromag. ratio in MHz/T","value":28024.95142,"uncert":8.5e-06,"sf_value":12,"sf_uncert":2,"units":"MHz T^-1"}
{"name":"electron-helion mass ratio","value":0.00018,"uncert":7.9e-15,"sf_value":13,"sf_uncert":2}
{"name":"electron mag. mom.","value":-9.28476e-24,"uncert":2.8e-33,"sf_value":11,"sf_uncert":2,"units":"J T^-1"}
{"name":"electron mag. mom. anomaly","value":0.00116,"uncert":1.8e-13,"sf_value":12,"sf_uncert":2}
{"name":"electron mag. mom. to Bohr magneton ratio","value":-1.00116,"uncert":1.8e-13,"sf_value":15,"sf_uncert":2}
{"name":"electron mag. mom. to nuclear magneton ratio","value":-1838.28197,"uncert":1.1e-07,"sf_value":12,"sf_uncert":2}
{"name":"electron mass","value":9.10938e-31,"uncert":2.8e-40,"sf_value":11,"sf_uncert":2,"units":"kg"}
{"name":"electron mass energy equivalent","value":8.18711e-14,"uncert":2.5e-23,"sf_value":11,"sf_uncert":2,"units":"J"}
{"name":"electron mass energy equivalent in MeV","value":0.511,"uncert":1.5e-10,"sf_value":11,"sf_uncert":2,"units":"MeV"}
{"name":"electron mass in u","value":0.00055,"uncert":1.6e-14,"sf_value":12,"sf_uncert":2,"units":"u"}
{"name":"electron molar mass","value":5.4858e-07,"uncert":1.7e-16,"sf_value":11,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"electron-muon mag. mom. ratio","value":206.76699,"uncert":4.6e-06,"sf_value":10,"sf_uncert":2}
{"name":"electron-muon mass ratio","value":0.00484,"uncert":1.1e-10,"sf_value":9,"sf_uncert":2}
{"name":"electron-neutron mag. mom. ratio","value":960.9205,"uncert":0.00023,"sf_value":8,"sf_uncert":2}
{"name":"electron-neutron mass ratio","value":0.00054,"uncert":2.6e-13,"sf_value":11,"sf_uncert":2}
{"name":"electron-proton mag. mom. ratio","value":-658.21069,"uncert":2e-07,"sf_value":11,"sf_uncert":2}
{"name":"electron-proton mass ratio","value":0.00054,"uncert":3.3e-14,"sf_value":12,"sf_uncert":2}
{"name":"electron relative atomic mass","value":0.00055,"uncert":1.6e-14,"sf_value":12,"sf_uncert":2}
{"name":"electron-tau mass ratio","value":0.00029,"uncert":1.9e-08,"sf_value":6,"sf_uncert":2}
{"name":"electron to alpha particle mass ratio","value":0.00014,"uncert":4.5e-15,"sf_value":13,"sf_uncert":2}
{"name":"electron to shielded helion mag. mom. ratio","value":864.05826,"uncert":1e-05,"sf_value":9,"sf_uncert":2}
{"name":"electron to shielded proton mag. mom. ratio","value":-658.2276,"uncert":7.2e-06,"sf_value":10,"sf_uncert":2}
{"name":"electron-triton mass ratio","value":0.00018,"uncert":9e-15,"sf_value":13,"sf_uncert":2}
{"name":"electron volt","value":1.60218e-19,"sf_value":10,"units":"J"}
{"name":"electron volt-atomic mass unit relationship","value":1.07354e-09,"uncert":3.2e-19,"sf_value":12,"sf_uncert":2,"units":"u"}
{"name":"electron volt-hartree relationship","value":0.03675,"uncert":7.1e-14,"sf_value":14,"sf_uncert":2,"units":"E_h"}
{"name":"electron volt-hertz relationship","value":241798924200000,"sf_value":10,"units":"Hz"}
{"name":"electron volt-inverse meter relationship","value":806554.3937,"sf_value":10,"units":"m^-1"}
{"name":"electron volt-joule relationship","value":1.60218e-19,"sf_value":10,"units":"J"}
{"name":"electron volt-kelvin relationship","value":11604.51812,"sf_value":10,"units":"K"}
{"name":"electron volt-kilogram relationship","value":1.78266e-36,"sf_value":10,"units":"kg"}
{"name":"elementary charge","value":1.60218e-19,"sf_value":10,"units":"C"}
{"name":"elementary charge over h-bar","value":1519267447000000,"sf_value":10,"units":"A J^-1"}
{"name":"Faraday constant","value":96485.33212,"sf_value":10,"units":"C mol^-1"}
{"name":"Fermi coupling constant","value":0.00001,"uncert":6e-12,"sf_value":8,"sf_uncert":1,"units":"GeV^-2"}
{"name":"fine-structure constant","value":0.0073,"uncert":1.1e-12,"sf_value":11,"sf_uncert":2}
{"name":"first radiation constant","value":3.74177e-16,"sf_value":10,"units":"W m^2"}
{"name":"first radiation constant for spectral radiance","value":1.19104e-16,"sf_value":10,"units":"W m^2 sr^-1"}
{"name":"hartree-atomic mass unit relationship","value":2.92126e-08,"uncert":8.8e-18,"sf_value":12,"sf_uncert":2,"units":"u"}
{"name":"hartree-electron volt relationship","value":27.21139,"uncert":5.3e-11,"sf_value":14,"sf_uncert":2,"units":"eV"}
{"name":"Hartree energy","value":4.35974e-18,"uncert":8.5e-30,"sf_value":14,"sf_uncert":2,"units":"J"}
{"name":"Hartree energy in eV","value":27.21139,"uncert":5.3e-11,"sf_value":14,"sf_uncert":2,"units":"eV"}
{"name":"hartree-hertz relationship","value":6579683920502000,"uncert":13000,"sf_value":13,"sf_uncert":2,"units":"Hz"}
{"name":"hartree-inverse meter relationship","value":21947463.13632,"uncert":0.00004,"sf_value":14,"sf_uncert":2,"units":"m^-1"}
{"name":"hartree-joule relationship","value":4.35974e-18,"uncert":8.5e-30,"sf_value":14,"sf_uncert":2,"units":"J"}
{"name":"hartree-kelvin relationship","value":315775.0248,"uncert":6.1e-07,"sf_value":14,"sf_uncert":2,"units":"K"}
{"name":"hartree-kilogram relationship","value":4.85087e-35,"uncert":9.4e-47,"sf_value":14,"sf_uncert":2,"units":"kg"}
{"name":"helion-electron mass ratio","value":5495.88528,"uncert":2.4e-07,"sf_value":12,"sf_uncert":2}
{"name":"helion g factor","value":-4.25525,"uncert":5e-08,"sf_value":10,"sf_uncert":2}
{"name":"helion mag. mom.","value":-1.07462e-26,"uncert":1.3e-34,"sf_value":10,"sf_uncert":2,"units":"J T^-1"}
{"name":"helion mag. mom. to Bohr magneton ratio","value":-0.00116,"uncert":1.4e-11,"sf_value":10,"sf_uncert":2}
{"name":"helion mag. mom. to nuclear magneton ratio","value":-2.12763,"uncert":2.5e-08,"sf_value":10,"sf_uncert":2}
{"name":"helion mass","value":5.00641e-27,"uncert":1.5e-36,"sf_value":11,"sf_uncert":2,"units":"kg"}
{"name":"helion mass energy equivalent","value":4.49954e-10,"uncert":1.4e-19,"sf_value":11,"sf_uncert":2,"units":"J"}
{"name":"helion mass energy equivalent in MeV","value":2808.39161,"uncert":8.5e-07,"sf_value":12,"sf_uncert":2,"units":"MeV"}
{"name":"helion mass in u","value":3.01493,"uncert":9.7e-11,"sf_value":13,"sf_uncert":2,"units":"u"}
{"name":"helion molar mass","value":0.00301,"uncert":9.1e-13,"sf_value":12,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"helion-proton mass ratio","value":2.99315,"uncert":1.3e-10,"sf_value":12,"sf_uncert":2}
{"name":"helion relative atomic mass","value":3.01493,"uncert":9.7e-11,"sf_value":13,"sf_uncert":2}
{"name":"helion shielding shift","value":0.00006,"uncert":1e-10,"sf_value":7,"sf_uncert":2}
{"name":"hertz-atomic mass unit relationship","value":4.43982e-24,"uncert":1.3e-33,"sf_value":11,"sf_uncert":2,"units":"u"}
{"name":"hertz-electron volt relationship","value":4.13567e-15,"sf_value":10,"units":"eV"}
{"name":"hertz-hartree relationship","value":1.51983e-16,"uncert":2.9e-28,"sf_value":14,"sf_uncert":2,"units":"E_h"}
{"name":"hertz-inverse meter relationship","value":3.33564e-09,"sf_value":10,"units":"m^-1"}
{"name":"hertz-joule relationship","value":6.62607e-34,"sf_value":9,"units":"J"}
{"name":"hertz-kelvin relationship","value":4.79924e-11,"sf_value":10,"units":"K"}
{"name":"hertz-kilogram relationship","value":7.3725e-51,"sf_value":10,"units":"kg"}
{"name":"hyperfine transition frequency of Cs-133","value":9192631770,"sf_value":10,"units":"Hz"}
{"name":"inverse fine-structure constant","value":137.036,"uncert":2.1e-08,"sf_value":12,"sf_uncert":2}
{"name":"inverse meter-atomic mass unit relationship","value":1.33103e-15,"uncert":4e-25,"sf_value":12,"sf_uncert":2,"units":"u"}
{"name":"inverse meter-electron volt relationship","value":1.23984e-06,"sf_value":10,"units":"eV"}
{"name":"inverse meter-hartree relationship","value":4.55634e-08,"uncert":8.8e-20,"sf_value":14,"sf_uncert":2,"units":"E_h"}
{"name":"inverse meter-hertz relationship","value":299792458,"sf_value":9,"units":"Hz"}
{"name":"inverse meter-joule relationship","value":1.98645e-25,"sf_value":10,"units":"J"}
{"name":"inverse meter-kelvin relationship","value":0.01439,"sf_value":10,"units":"K"}
{"name":"inverse meter-kilogram relationship","value":2.21022e-42,"sf_value":10,"units":"kg"}
{"name":"inverse of conductance quantum","value":12906.40372,"sf_value":10,"units":"ohm"}
{"name":"Josephson constant","value":483597848400000,"sf_value":10,"units":"Hz V^-1"}
{"name":"joule-atomic mass unit relationship","value":6700535256.5,"uncert":2,"sf_value":11,"sf_uncert":2,"units":"u"}
{"name":"joule-electron volt relationship","value":6.241509074e+18,"sf_value":10,"units":"eV"}
{"name":"joule-hartree relationship","value":2.2937122783963002e+17,"uncert":450000,"sf_value":14,"sf_uncert":2,"units":"E_h"}
{"name":"joule-hertz relationship","value":1.5091901789999999e+33,"sf_value":10,"units":"Hz"}
{"name":"joule-inverse meter relationship","value":5.0341165669999999e+24,"sf_value":10,"units":"m^-1"}
{"name":"joule-kelvin relationship","value":7.2429705160000002e+22,"sf_value":10,"units":"K"}
{"name":"joule-kilogram relationship","value":1.11265e-17,"sf_value":10,"units":"kg"}
{"name":"kelvin-atomic mass unit relationship","value":9.25109e-14,"uncert":2.8e-23,"sf_value":11,"sf_uncert":2,"units":"u"}
{"name":"kelvin-electron volt relationship","value":0.00009,"sf_value":10,"units":"eV"}
{"name":"kelvin-hartree relationship","value":3.16681e-06,"uncert":6.1e-18,"sf_value":14,"sf_uncert":2,"units":"E_h"}
{"name":"kelvin-hertz relationship","value":20836619120,"sf_value":10,"units":"Hz"}
{"name":"kelvin-inverse meter relationship","value":69.50348,"sf_value":10,"units":"m^-1"}
{"name":"kelvin-joule relationship","value":1.38065e-23,"sf_value":7,"units":"J"}
{"name":"kelvin-kilogram relationship","value":1.53618e-40,"sf_value":10,"units":"kg"}
{"name":"kilogram-atomic mass unit relationship","value":6.0221407621000001e+26,"uncert":1.8e+17,"sf_value":11,"sf_uncert":2,"units":"u"}
{"name":"kilogram-electron volt relationship","value":5.6095886030000005e+35,"sf_value":10,"units":"eV"}
{"name":"kilogram-hartree relationship","value":2.0614857887409001e+34,"uncert":4e+22,"sf_value":14,"sf_uncert":2,"units":"E_h"}
{"name":"kilogram-hertz relationship","value":1.356392489e+50,"sf_value":10,"units":"Hz"}
{"name":"kilogram-inverse meter relationship","value":4.5244383350000006e+41,"sf_value":10,"units":"m^-1"}
{"name":"kilogram-joule relationship","value":89875517870000000,"sf_value":10,"units":"J"}
{"name":"kilogram-kelvin relationship","value":6.5096572600000003e+39,"sf_value":10,"units":"K"}
{"name":"lattice parameter of silicon","value":5.43102e-10,"uncert":8.9e-18,"sf_value":10,"sf_uncert":2,"units":"m"}
{"name":"lattice spacing of ideal Si (220)","value":1.92016e-10,"uncert":3.2e-18,"sf_value":10,"sf_uncert":2,"units":"m"}
{"name":"Loschmidt constant (273.15 K, 100 kPa)","value":2.6516458039999999e+25,"sf_value":10,"units":"m^-3"}
{"name":"Loschmidt constant (273.15 K, 101.325 kPa)","value":2.6867801110000001e+25,"sf_value":10,"units":"m^-3"}
{"name":"luminous efficacy","value":683,"sf_value":3,"units":"lm W^-1"}
{"name":"mag. flux quantum","value":2.06783e-15,"sf_value":10,"units":"Wb"}
{"name":"molar gas constant","value":8.31446,"sf_value":10,"units":"J mol^-1 K^-1"}
{"name":"molar mass constant","value":0.001,"uncert":3e-13,"sf_value":11,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"molar mass of carbon-12","value":0.012,"uncert":3.6e-12,"sf_value":12,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"molar Planck constant","value":3.99031e-10,"sf_value":10,"units":"J Hz^-1 mol^-1"}
{"name":"molar volume of ideal gas (273.15 K, 100 kPa)","value":0.02271,"sf_value":10,"units":"m^3 mol^-1"}
{"name":"molar volume of ideal gas (273.15 K, 101.325 kPa)","value":0.02241,"sf_value":10,"units":"m^3 mol^-1"}
{"name":"molar volume of silicon","value":0.00001,"uncert":6e-13,"sf_value":10,"sf_uncert":2,"units":"m^3 mol^-1"}
{"name":"Molybdenum x unit","value":1.0021e-13,"uncert":5.3e-20,"sf_value":9,"sf_uncert":2,"units":"m"}
{"name":"muon Compton wavelength","value":1.17344e-14,"uncert":2.6e-22,"sf_value":10,"sf_uncert":2,"units":"m"}
{"name":"muon-electron mass ratio","value":206.76828,"uncert":4.6e-06,"sf_value":10,"sf_uncert":2}
{"name":"muon g factor","value":-2.00233,"uncert":1.3e-09,"sf_value":11,"sf_uncert":2}
{"name":"muon mag. mom.","value":-4.49045e-26,"uncert":1e-33,"sf_value":9,"sf_uncert":2,"units":"J T^-1"}
{"name":"muon mag. mom. anomaly","value":0.00117,"uncert":6.3e-10,"sf_value":9,"sf_uncert":2}
{"name":"muon mag. mom. to Bohr magneton ratio","value":-0.00484,"uncert":1.1e-10,"sf_value":9,"sf_uncert":2}
{"name":"muon mag. mom. to nuclear magneton ratio","value":-8.8906,"uncert":2e-07,"sf_value":9,"sf_uncert":2}
{"name":"muon mass","value":1.88353e-28,"uncert":4.2e-36,"sf_value":10,"sf_uncert":2,"units":"kg"}
{"name":"muon mass energy equivalent","value":1.69283e-11,"uncert":3.8e-19,"sf_value":10,"sf_uncert":2,"units":"J"}
{"name":"muon mass energy equivalent in MeV","value":105.65838,"uncert":2.3e-06,"sf_value":10,"sf_uncert":2,"units":"MeV"}
{"name":"muon mass in u","value":0.11343,"uncert":2.5e-09,"sf_value":10,"sf_uncert":2,"units":"u"}
{"name":"muon molar mass","value":0.00011,"uncert":2.5e-12,"sf_value":10,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"muon-neutron mass ratio","value":0.11245,"uncert":2.5e-09,"sf_value":10,"sf_uncert":2}
{"name":"muon-proton mag. mom. ratio","value":-3.18335,"uncert":7.1e-08,"sf_value":10,"sf_uncert":2}
{"name":"muon-proton mass ratio","value":0.11261,"uncert":2.5e-09,"sf_value":10,"sf_uncert":2}
{"name":"muon-tau mass ratio","value":0.05946,"uncert":4e-06,"sf_value":6,"sf_uncert":2}
{"name":"natural unit of action","value":1.05457e-34,"sf_value":10,"units":"J s"}
{"name":"natural unit of action in eV s","value":6.58212e-16,"sf_value":10,"units":"eV s"}
{"name":"natural unit of energy","value":8.18711e-14,"uncert":2.5e-23,"sf_value":11,"sf_uncert":2,"units":"J"}
{"name":"natural unit of energy in MeV","value":0.511,"uncert":1.5e-10,"sf_value":11,"sf_uncert":2,"units":"MeV"}
{"name":"natural unit of length","value":3.86159e-13,"uncert":1.2e-22,"sf_value":11,"sf_uncert":2,"units":"m"}
{"name":"natural unit of mass","value":9.10938e-31,"uncert":2.8e-40,"sf_value":11,"sf_uncert":2,"units":"kg"}
{"name":"natural unit of momentum","value":2.73092e-22,"uncert":8.2e-32,"sf_value":12,"sf_uncert":2,"units":"kg m s^-1"}
{"name":"natural unit of momentum in MeV/c","value":0.511,"uncert":1.5e-10,"sf_value":11,"sf_uncert":2,"units":"MeV / c"}
{"name":"natural unit of time","value":1.28809e-21,"uncert":3.9e-31,"sf_value":12,"sf_uncert":2,"units":"s"}
{"name":"natural unit of velocity","value":299792458,"sf_value":9,"units":"m s^-1"}
{"name":"neutron Compton wavelength","value":1.31959e-15,"uncert":7.5e-25,"sf_value":12,"sf_uncert":2,"units":"m"}
{"name":"neutron-electron mag. mom. ratio","value":0.00104,"uncert":2.5e-10,"sf_value":9,"sf_uncert":2}
{"name":"neutron-electron mass ratio","value":1838.68366,"uncert":8.9e-07,"sf_value":12,"sf_uncert":2}
{"name":"neutron g factor","value":-3.82609,"uncert":9e-07,"sf_value":9,"sf_uncert":2}
{"name":"neutron gyromag. ratio","value":183247171,"uncert":43,"sf_value":9,"sf_uncert":2,"units":"s^-1 T^-1"}
{"name":"neutron gyromag. ratio in MHz/T","value":29.16469,"uncert":6.9e-06,"sf_value":9,"sf_uncert":2,"units":"MHz T^-1"}
{"name":"neutron mag. mom.","value":-9.66237e-27,"uncert":2.3e-33,"sf_value":8,"sf_uncert":2,"units":"J T^-1"}
{"name":"neutron mag. mom. to Bohr magneton ratio","value":-0.00104,"uncert":2.5e-10,"sf_value":9,"sf_uncert":2}
{"name":"neutron mag. mom. to nuclear magneton ratio","value":-1.91304,"uncert":4.5e-07,"sf_value":9,"sf_uncert":2}
{"name":"neutron mass","value":1.67493e-27,"uncert":9.5e-37,"sf_value":12,"sf_uncert":2,"units":"kg"}
{"name":"neutron mass energy equivalent","value":1.50535e-10,"uncert":8.6e-20,"sf_value":12,"sf_uncert":2,"units":"J"}
{"name":"neutron mass energy equivalent in MeV","value":939.56542,"uncert":5.4e-07,"sf_value":11,"sf_uncert":2,"units":"MeV"}
{"name":"neutron mass in u","value":1.00866,"uncert":4.9e-10,"sf_value":12,"sf_uncert":2,"units":"u"}
{"name":"neutron molar mass","value":0.00101,"uncert":5.7e-13,"sf_value":12,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"neutron-muon mass ratio","value":8.89248,"uncert":2e-07,"sf_value":9,"sf_uncert":2}
{"name":"neutron-proton mag. mom. ratio","value":-0.68498,"uncert":1.6e-07,"sf_value":8,"sf_uncert":2}
{"name":"neutron-proton mass difference","value":2.30557e-30,"uncert":8.2e-37,"sf_value":9,"sf_uncert":2,"units":"kg"}
{"name":"neutron-proton mass difference energy equivalent","value":2.07215e-13,"uncert":7.4e-20,"sf_value":9,"sf_uncert":2,"units":"J"}
{"name":"neutron-proton mass difference energy equivalent in MeV","value":1.29333,"uncert":4.6e-07,"sf_value":9,"sf_uncert":2,"units":"MeV"}
{"name":"neutron-proton mass difference in u","value":0.00139,"uncert":4.9e-10,"sf_value":9,"sf_uncert":2,"units":"u"}
{"name":"neutron-proton mass ratio","value":1.00138,"uncert":4.9e-10,"sf_value":12,"sf_uncert":2}
{"name":"neutron relative atomic mass","value":1.00866,"uncert":4.9e-10,"sf_value":12,"sf_uncert":2}
{"name":"neutron-tau mass ratio","value":0.52878,"uncert":0.00004,"sf_value":6,"sf_uncert":2}
{"name":"neutron to shielded proton mag. mom. ratio","value":-0.685,"uncert":1.6e-07,"sf_value":8,"sf_uncert":2}
{"name":"Newtonian constant of gravitation","value":6.6743e-11,"uncert":1.5e-15,"sf_value":6,"sf_uncert":2,"units":"m^3 kg^-1 s^-2"}
{"name":"Newtonian constant of gravitation over h-bar c","value":6.70883e-39,"uncert":1.5e-43,"sf_value":6,"sf_uncert":2,"units":"( GeV / c^2 )^-2"}
{"name":"nuclear magneton","value":5.05078e-27,"uncert":1.5e-36,"sf_value":11,"sf_uncert":2,"units":"J T^-1"}
{"name":"nuclear magneton in eV/T","value":3.15245e-08,"uncert":9.6e-18,"sf_value":12,"sf_uncert":2,"units":"eV T^-1"}
{"name":"nuclear magneton in inverse meter per tesla","value":0.02543,"uncert":7.8e-12,"sf_value":12,"sf_uncert":2,"units":"m^-1 T^-1"}
{"name":"nuclear magneton in K/T","value":0.00037,"uncert":1.1e-13,"sf_value":11,"sf_uncert":2,"units":"K T^-1"}
{"name":"nuclear magneton in MHz/T","value":7.62259,"uncert":2.3e-09,"sf_value":11,"sf_uncert":2,"units":"MHz T^-1"}
{"name":"Planck constant","value":6.62607e-34,"sf_value":9,"units":"J Hz^-1"}
{"name":"Planck constant in eV/Hz","value":4.13567e-15,"sf_value":10,"units":"eV Hz^-1"}
{"name":"Planck length","value":1.61626e-35,"uncert":1.8e-40,"sf_value":7,"sf_uncert":2,"units":"m"}
{"name":"Planck mass","value":2.17643e-08,"uncert":2.4e-13,"sf_value":7,"sf_uncert":2,"units":"kg"}
{"name":"Planck mass energy equivalent in GeV","value":1.22089e+19,"uncert":140000000000000,"sf_value":7,"sf_uncert":2,"units":"GeV"}
{"name":"Planck temperature","value":1.416784e+32,"uncert":1.6000000000000001e+27,"sf_value":7,"sf_uncert":2,"units":"K"}
{"name":"Planck time","value":5.39125e-44,"uncert":6e-49,"sf_value":7,"sf_uncert":2,"units":"s"}
{"name":"proton charge to mass quotient","value":95788331.56,"uncert":0.029,"sf_value":11,"sf_uncert":2,"units":"C kg^-1"}
{"name":"proton Compton wavelength","value":1.32141e-15,"uncert":4e-25,"sf_value":12,"sf_uncert":2,"units":"m"}
{"name":"proton-electron mass ratio","value":1836.15267,"uncert":1.1e-07,"sf_value":12,"sf_uncert":2}
{"name":"proton g factor","value":5.58569,"uncert":1.6e-09,"sf_value":11,"sf_uncert":2}
{"name":"proton gyromag. ratio","value":267522187.44,"uncert":0.11,"sf_value":11,"sf_uncert":2,"units":"s^-1 T^-1"}
{"name":"proton gyromag. ratio in MHz/T","value":42.57748,"uncert":1.8e-08,"sf_value":11,"sf_uncert":2,"units":"MHz T^-1"}
{"name":"proton mag. mom.","value":1.41061e-26,"uncert":6e-36,"sf_value":12,"sf_uncert":2,"units":"J T^-1"}
{"name":"proton mag. mom. to Bohr magneton ratio","value":0.00152,"uncert":4.6e-13,"sf_value":12,"sf_uncert":2}
{"name":"proton mag. mom. to nuclear magneton ratio","value":2.79285,"uncert":8.2e-10,"sf_value":12,"sf_uncert":2}
{"name":"proton mag. shielding correction","value":0.00003,"uncert":1.1e-08,"sf_value":5,"sf_uncert":2}
{"name":"proton mass","value":1.67262e-27,"uncert":5.1e-37,"sf_value":12,"sf_uncert":2,"units":"kg"}
{"name":"proton mass energy equivalent","value":1.50328e-10,"uncert":4.6e-20,"sf_value":12,"sf_uncert":2,"units":"J"}
{"name":"proton mass energy equivalent in MeV","value":938.27209,"uncert":2.9e-07,"sf_value":11,"sf_uncert":2,"units":"MeV"}
{"name":"proton mass in u","value":1.00728,"uncert":5.3e-11,"sf_value":13,"sf_uncert":2,"units":"u"}
{"name":"proton molar mass","value":0.00101,"uncert":3.1e-13,"sf_value":12,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"proton-muon mass ratio","value":8.88024,"uncert":2e-07,"sf_value":9,"sf_uncert":2}
{"name":"proton-neutron mag. mom. ratio","value":-1.4599,"uncert":3.4e-07,"sf_value":9,"sf_uncert":2}
{"name":"proton-neutron mass ratio","value":0.99862,"uncert":4.9e-10,"sf_value":11,"sf_uncert":2}
{"name":"proton relative atomic mass","value":1.00728,"uncert":5.3e-11,"sf_value":13,"sf_uncert":2}
{"name":"proton rms charge radius","value":8.414e-16,"uncert":1.9e-18,"sf_value":4,"sf_uncert":2,"units":"m"}
{"name":"proton-tau mass ratio","value":0.52805,"uncert":0.00004,"sf_value":6,"sf_uncert":2}
{"name":"quantum of circulation","value":0.00036,"uncert":1.1e-13,"sf_value":11,"sf_uncert":2,"units":"m^2 s^-1"}
{"name":"quantum of circulation times 2","value":0.00073,"uncert":2.2e-13,"sf_value":11,"sf_uncert":2,"units":"m^2 s^-1"}
{"name":"reduced Compton wavelength","value":3.86159e-13,"uncert":1.2e-22,"sf_value":11,"sf_uncert":2,"units":"m"}
{"name":"reduced muon Compton wavelength","value":1.86759e-15,"uncert":4.2e-23,"sf_value":10,"sf_uncert":2,"units":"m"}
{"name":"reduced neutron Compton wavelength","value":2.10019e-16,"uncert":1.2e-25,"sf_value":11,"sf_uncert":2,"units":"m"}
{"name":"reduced Planck constant","value":1.05457e-34,"sf_value":10,"units":"J s"}
{"name":"reduced Planck constant in eV s","value":6.58212e-16,"sf_value":10,"units":"eV s"}
{"name":"reduced Planck constant times c in MeV fm","value":197.32698,"sf_value":10,"units":"MeV fm"}
{"name":"reduced proton Compton wavelength","value":2.10309e-16,"uncert":6.4e-26,"sf_value":12,"sf_uncert":2,"units":"m"}
{"name":"reduced tau Compton wavelength","value":1.11054e-16,"uncert":7.5e-21,"sf_value":7,"sf_uncert":2,"units":"m"}
{"name":"Rydberg constant","value":10973731.56816,"uncert":0.00002,"sf_value":14,"sf_uncert":2,"units":"m^-1"}
{"name":"Rydberg constant times c in Hz","value":3289841960250800,"uncert":6400,"sf_value":14,"sf_uncert":2,"units":"Hz"}
{"name":"Rydberg constant times hc in eV","value":13.60569,"uncert":2.6e-11,"sf_value":14,"sf_uncert":2,"units":"eV"}
{"name":"Rydberg constant times hc in J","value":2.17987e-18,"uncert":4.2e-30,"sf_value":14,"sf_uncert":2,"units":"J"}
{"name":"Sackur-Tetrode constant (1 K, 100 kPa)","value":-1.15171,"uncert":4.5e-10,"sf_value":12,"sf_uncert":2}
{"name":"Sackur-Tetrode constant (1 K, 101.325 kPa)","value":-1.16487,"uncert":4.5e-10,"sf_value":12,"sf_uncert":2}
{"name":"second radiation constant","value":0.01439,"sf_value":10,"units":"m K"}
{"name":"shielded helion gyromag. ratio","value":203789456.9,"uncert":2.4,"sf_value":10,"sf_uncert":2,"units":"s^-1 T^-1"}
{"name":"shielded helion gyromag. ratio in MHz/T","value":32.4341,"uncert":3.8e-07,"sf_value":10,"sf_uncert":2,"units":"MHz T^-1"}
{"name":"shielded helion mag. mom.","value":-1.07455e-26,"uncert":1.3e-34,"sf_value":10,"sf_uncert":2,"units":"J T^-1"}
{"name":"shielded helion mag. mom. to Bohr magneton ratio","value":-0.00116,"uncert":1.4e-11,"sf_value":10,"sf_uncert":2}
{"name":"shielded helion mag. mom. to nuclear magneton ratio","value":-2.1275,"uncert":2.5e-08,"sf_value":10,"sf_uncert":2}
{"name":"shielded helion to proton mag. mom. ratio","value":-0.76177,"uncert":8.9e-09,"sf_value":10,"sf_uncert":2}
{"name":"shielded helion to shielded proton mag. mom. ratio","value":-0.76179,"uncert":3.3e-09,"sf_value":10,"sf_uncert":2}
{"name":"shielded proton gyromag. ratio","value":267515315.1,"uncert":2.9,"sf_value":10,"sf_uncert":2,"units":"s^-1 T^-1"}
{"name":"shielded proton gyromag. ratio in MHz/T","value":42.57638,"uncert":4.6e-07,"sf_value":10,"sf_uncert":2,"units":"MHz T^-1"}
{"name":"shielded proton mag. mom.","value":1.41057e-26,"uncert":1.5e-34,"sf_value":10,"sf_uncert":2,"units":"J T^-1"}
{"name":"shielded proton mag. mom. to Bohr magneton ratio","value":0.00152,"uncert":1.7e-11,"sf_value":10,"sf_uncert":2}
{"name":"shielded proton mag. mom. to nuclear magneton ratio","value":2.79278,"uncert":3e-08,"sf_value":10,"sf_uncert":2}
{"name":"shielding difference of d and p in HD","value":2.02e-08,"uncert":2e-11,"sf_value":5,"sf_uncert":2}
{"name":"shielding difference of t and p in HT","value":2.414e-08,"uncert":2e-11,"sf_value":5,"sf_uncert":2}
{"name":"speed of light in vacuum","value":299792458,"sf_value":9,"units":"m s^-1"}
{"name":"standard acceleration of gravity","value":9.80665,"sf_value":6,"units":"m s^-2"}
{"name":"standard atmosphere","value":101325,"sf_value":6,"units":"Pa"}
{"name":"standard-state pressure","value":100000,"sf_value":6,"units":"Pa"}
{"name":"Stefan-Boltzmann constant","value":5.67037e-08,"sf_value":10,"units":"W m^-2 K^-4"}
{"name":"tau Compton wavelength","value":6.97771e-16,"uncert":4.7e-20,"sf_value":6,"sf_uncert":2,"units":"m"}
{"name":"tau-electron mass ratio","value":3477.23,"uncert":0.23,"sf_value":6,"sf_uncert":2}
{"name":"tau energy equivalent","value":1776.86,"uncert":0.12,"sf_value":6,"sf_uncert":2,"units":"MeV"}
{"name":"tau mass","value":3.16754e-27,"uncert":2.1e-31,"sf_value":6,"sf_uncert":2,"units":"kg"}
{"name":"tau mass energy equivalent","value":2.84684e-10,"uncert":1.9e-14,"sf_value":6,"sf_uncert":2,"units":"J"}
{"name":"tau mass in u","value":1.90754,"uncert":0.00013,"sf_value":6,"sf_uncert":2,"units":"u"}
{"name":"tau molar mass","value":0.00191,"uncert":1.3e-07,"sf_value":6,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"tau-muon mass ratio","value":16.817,"uncert":0.0011,"sf_value":6,"sf_uncert":2}
{"name":"tau-neutron mass ratio","value":1.89115,"uncert":0.00013,"sf_value":6,"sf_uncert":2}
{"name":"tau-proton mass ratio","value":1.89376,"uncert":0.00013,"sf_value":6,"sf_uncert":2}
{"name":"Thomson cross section","value":6.65246e-29,"uncert":6e-38,"sf_value":11,"sf_uncert":2,"units":"m^2"}
{"name":"triton-electron mass ratio","value":5496.92154,"uncert":2.7e-07,"sf_value":12,"sf_uncert":2}
{"name":"triton g factor","value":5.95792,"uncert":1.2e-08,"sf_value":10,"sf_uncert":2}
{"name":"triton mag. mom.","value":1.50461e-26,"uncert":3e-35,"sf_value":11,"sf_uncert":2,"units":"J T^-1"}
{"name":"triton mag. mom. to Bohr magneton ratio","value":0.00162,"uncert":3.2e-12,"sf_value":11,"sf_uncert":2}
{"name":"triton mag. mom. to nuclear magneton ratio","value":2.97896,"uncert":5.9e-09,"sf_value":11,"sf_uncert":2}
{"name":"triton mass","value":5.00736e-27,"uncert":1.5e-36,"sf_value":11,"sf_uncert":2,"units":"kg"}
{"name":"triton mass energy equivalent","value":4.50039e-10,"uncert":1.4e-19,"sf_value":11,"sf_uncert":2,"units":"J"}
{"name":"triton mass energy equivalent in MeV","value":2808.92113,"uncert":8.5e-07,"sf_value":12,"sf_uncert":2,"units":"MeV"}
{"name":"triton mass in u","value":3.0155,"uncert":1.2e-10,"sf_value":12,"sf_uncert":2,"units":"u"}
{"name":"triton molar mass","value":0.00302,"uncert":9.2e-13,"sf_value":12,"sf_uncert":2,"units":"kg mol^-1"}
{"name":"triton-proton mass ratio","value":2.99372,"uncert":1.5e-10,"sf_value":12,"sf_uncert":2}
{"name":"triton relative atomic mass","value":3.0155,"uncert":1.2e-10,"sf_value":12,"sf_uncert":2}
{"name":"triton to proton mag. mom. ratio","value":1.06664,"uncert":2.1e-09,"sf_value":11,"sf_uncert":2}
{"name":"unified atomic mass unit","value":1.66054e-27,"uncert":5e-37,"sf_value":12,"sf_uncert":2,"units":"kg"}
{"name":"vacuum electric permittivity","value":8.85419e-12,"uncert":1.3e-21,"sf_value":11,"sf_uncert":2,"units":"F m^-1"}
{"name":"vacuum mag. permeability","value":1.25664e-06,"uncert":1.9e-16,"sf_value":12,"sf_uncert":2,"units":"N A^-2"}
{"name":"von Klitzing constant","value":25812.80745,"sf_value":10,"units":"ohm"}
{"name":"weak mixing angle","value":0.2229,"uncert":0.0003,"sf_value":5,"sf_uncert":2}
{"name":"Wien frequency displacement law constant","value":58789257570,"sf_value":10,"units":"Hz K^-1"}
{"name":"Wien wavelength displacement law constant","value":0.0029,"sf_value":10,"units":"m K"}
{"name":"W to Z mass ratio","value":0.88153,"uncert":0.00017,"sf_value":5,"sf_uncert":2}