Section 06 Products of the chemical or allied industries 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 Commodity Code Description 38 22 00 Diagnostic or lab.reagents on a backing; prepared diagnostic or lab.reagents excl. Ch 30 38 22 11 For malaria 38 22 12 For Zika and other diseases transmitted by mosquitoes of the genus Aedes 38 22 13 For blood-grouping 38 22 19 Other 38 22 90 Other