An item impregnated with a standardized quantity of a chemical agent(s) for the differentiation of certain groups of microorganisms (presumptive differentiation). For discs used for sensitivity testing, see sensitivity discs, diagnostic.
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 6110-01-513-4489
NSN 5965-00-937-6482
NSN 6135-01-101-5039
NSN 5920-00-019-9044
NSN 5990-01-461-8969
NSN 6240-01-293-4819
NSN 7035-01-589-6707
NSN 4140-01-534-7833
NSN 5925-00-943-0250
NSN 2925-00-383-3523
NSN 5996-01-411-7225
NSN 5960-01-252-6331