| Tariff Classification |
| section 06 | Products of the chemical or allied industries |
| chapter 38 | Miscellaneous chemical products |
| 38.22 | Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials: |
| 3822.90 | －Other |
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