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 5910-01-475-7757
NSN 4140-01-147-4513
NSN 6135-00-152-8729
NSN 6685-00-133-2288
NSN 5996-00-149-8418
NSN 5905-00-353-1659
NSN 2925-01-221-2522
NSN 6320-01-029-4220
NSN 5930-01-094-9411
NSN 6685-01-602-9641
NSN 5945-00-246-5740
NSN 7035-01-095-9322