[
{"symbole":"m","nom":"mètre","grandeur":"Longueur","type":"Base","definition":"Distance parcourue par la lumière dans le vide en 1/299 792 458 s"},
{"symbole":"kg","nom":"kilogramme","grandeur":"Masse","type":"Base","definition":"Défini par la constante de Planck h"},
{"symbole":"s","nom":"seconde","grandeur":"Temps","type":"Base","definition":"Durée de 9 192 631 770 périodes de la radiation Cs-133"},
{"symbole":"A","nom":"ampère","grandeur":"Courant électrique","type":"Base","definition":"Défini par la charge élémentaire e"},
{"symbole":"K","nom":"kelvin","grandeur":"Température thermodynamique","type":"Base","definition":"Défini par la constante de Boltzmann k"},
{"symbole":"mol","nom":"mole","grandeur":"Quantité de matière","type":"Base","definition":"Contient exactement 6.022 140 76 × 10²³ entités élémentaires"},
{"symbole":"cd","nom":"candela","grandeur":"Intensité lumineuse","type":"Base","definition":"Défini par l'efficacité lumineuse Kcd"},
{"symbole":"Hz","nom":"hertz","grandeur":"Fréquence","type":"Dérivée","definition":"1 Hz = 1 s⁻¹"},
{"symbole":"N","nom":"newton","grandeur":"Force","type":"Dérivée","definition":"1 N = 1 kg⋅m⋅s⁻²"},
{"symbole":"Pa","nom":"pascal","grandeur":"Pression","type":"Dérivée","definition":"1 Pa = 1 N/m² = 1 kg⋅m⁻¹⋅s⁻²"},
{"symbole":"J","nom":"joule","grandeur":"Énergie / Travail","type":"Dérivée","definition":"1 J = 1 N⋅m = 1 kg⋅m²⋅s⁻²"},
{"symbole":"W","nom":"watt","grandeur":"Puissance","type":"Dérivée","definition":"1 W = 1 J/s = 1 kg⋅m²⋅s⁻³"},
{"symbole":"C","nom":"coulomb","grandeur":"Charge électrique","type":"Dérivée","definition":"1 C = 1 A⋅s"},
{"symbole":"V","nom":"volt","grandeur":"Tension électrique","type":"Dérivée","definition":"1 V = 1 W/A"},
{"symbole":"Ω","nom":"ohm","grandeur":"Résistance électrique","type":"Dérivée","definition":"1 Ω = 1 V/A"},
{"symbole":"F","nom":"farad","grandeur":"Capacité électrique","type":"Dérivée","definition":"1 F = 1 C/V"},
{"symbole":"T","nom":"tesla","grandeur":"Induction magnétique","type":"Dérivée","definition":"1 T = 1 kg⋅A⁻¹⋅s⁻²"},
{"symbole":"lm","nom":"lumen","grandeur":"Flux lumineux","type":"Dérivée","definition":"1 lm = 1 cd⋅sr"},
{"symbole":"lx","nom":"lux","grandeur":"Éclairement lumineux","type":"Dérivée","definition":"1 lx = 1 lm/m²"},
{"symbole":"Bq","nom":"becquerel","grandeur":"Activité radioactive","type":"Dérivée","definition":"1 Bq = 1 s⁻¹ (désintégration)"},
{"symbole":"Gy","nom":"gray","grandeur":"Dose absorbée","type":"Dérivée","definition":"1 Gy = 1 J/kg"},
{"symbole":"Sv","nom":"sievert","grandeur":"Dose efficace","type":"Dérivée","definition":"1 Sv = 1 J/kg (pondéré)"},
{"symbole":"kat","nom":"katal","grandeur":"Activité catalytique","type":"Dérivée","definition":"1 kat = 1 mol/s"}
]