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 5985-00-446-2756
NSN 6320-01-029-4220
NSN 5965-00-568-5802
NSN 5960-01-278-9394
NSN 6220-00-827-0227
NSN 5975-01-102-1589
NSN 6145-00-340-6698
NSN 6240-01-226-8866
NSN 5965-00-246-5612
NSN 5925-01-293-6421
NSN 5935-01-442-1495
NSN 6650-01-430-9416