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 6240-01-593-4245
NSN 6145-01-631-4598
NSN 5945-01-088-6526
NSN 6240-00-156-1607
NSN 2925-00-494-5537
NSN 5950-01-493-3116
NSN 5985-01-116-3383
NSN 5975-01-124-9966
NSN 6650-00-985-5332
NSN 6150-01-073-7525
NSN 4140-01-557-5790
NSN 6620-00-811-7614