Explanatory notes
… curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-209, polonium-210, … physical or chemical effects such as : (1) Ionisation of gases. (2) Fluorescence. (3) Fogging of photographic … absorbent compositions (getters) used for purifying certain gases. Articles or parts of articles, made of uranium …