ヒト等価用量
HED = 動物用量(mg/kg) x (動物体重(kg) / ヒト体重(kg))
HED = animal dose in mg/kg ( animal weight in kg human weight in kg ) 0.33 {\displaystyle {\mbox{HED}}={\mbox{animal dose in mg/kg}}\left({\tfrac {\mbox{animal weight in kg}}{\mbox{human weight in kg}}}\right)^{0.33}}