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 5985-01-264-2344
NSN 5910-01-165-1107
NSN 5920-01-408-3508
NSN 5925-01-613-2453
NSN 7035-00-079-7189
NSN 5960-01-029-5637
NSN 6105-00-107-3315
NSN 5965-01-522-9247
NSN 6320-01-143-3597
NSN 6150-01-633-1218
NSN 5960-01-163-8905
NSN 4140-01-019-8980