Each well has dried film of a different substrate
Classification: Diagnostic or lab reagents on a backing, prepared diag/lab reagents whether or not on a backing, not of heading 3002 or 3006; certified ref materials
NSN 6685-01-406-2919
NSN 5920-01-032-0445
NSN 5920-01-650-6510
NSN 6130-01-568-9682
NSN 5855-01-462-5150
NSN 6130-00-162-5327
NSN 6130-01-542-6876
NSN 6645-01-160-7707
NSN 6150-01-648-5198
NSN 6150-01-212-7110
NSN 5996-01-217-0552
NSN 5930-01-634-0659