| 3822.00 | | Diagnostic or laboratory reagents on a backing and prepared diagnostic or laboratory reagents, whether or not on a backing, other than those of heading 3002 or 3006; certified reference materials: | | | | |
| 3822.00.10 | | Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents, whether or not on a backing, other than those of heading 3002 or 3006: | | | | |
| 3822.00.10 | | Containing antigens or antisera | | Free | | Free |
| 3822.00.10 | 10 | Containing methyl chloroform (1,1,1-trichloro- methane) or carbon tetrachloride | kg | | | |
| 3822.00.10 | 90 | Other | kg | | | |
| 3822.00.50 | | Other | | Free | | 25% |
| 3822.00.50 | 10 | Containing methyl chloroform (1,1,1-trichloro- methane) or carbon tetrachloride | kg | | | |
| 3822.00.50 | 90 | Other | kg | | | |
| 3822.00.60 | 00 | Certified reference materials | X | Free | | 25% |
