[en] Personal dosimeters attached to workers are used as effective exposure management tools to avoid unnecessary exposure due to radiation work and to keep the received dose below the allowable level. Dosimeters are classified into electronic dosimeters that can monitor the dose / dose rate during work and passive dosimeters that measure the cumulative dose per month. For each of them, JIS standards (energy characteristics, directional characteristics, temperature/humidity characteristics, dose linearity, detection limit, etc.) are stipulated, which are needed to be cleared. (A.O.)