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 6610-00-420-8475
NSN 5996-01-381-5313
NSN 5920-01-198-7610
NSN 5905-01-483-1338
NSN 5835-00-647-2104
NSN 5835-01-011-4366
NSN 5996-01-383-7018
NSN 6145-01-089-7663
NSN 5999-00-835-2249
NSN 6645-00-153-3834
NSN 6320-00-908-6841
NSN 5965-01-449-1101