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 5895-01-634-0630
NSN 6620-01-296-0873
NSN 6645-00-580-9605
NSN 5950-01-154-4061
NSN 6105-01-502-6541
NSN 5985-00-554-4599
NSN 6620-00-189-0967
NSN 5905-01-023-1383
NSN 5910-01-119-3647
NSN 5996-01-322-1486
NSN 6645-01-312-3558
NSN 5998-00-130-3363