| 2844 | | Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products: | | | | |
| 2844.40.00 | | Radioactive elements and isotopes and com- pounds other than those of subheadings 2844.10, 2844.20, and 2844.30; alloys, dis- persions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds; radioactive residues | | Free | | Free |
| 2844.40.00 | 10 | Elements, isotopes and compounds with cobalt-60 radioactivity only | GBq | | | |
| 2844.40.00 | 20 | Other elements, isotopes and compounds | MBq | | | |
| 2845 | | Isotopes other than those of heading 2844; com- pounds, inorganic or organic, of such isotopes, whether or not chemically defined: | | | | |
