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 5990-00-660-8885
NSN 5925-01-175-8204
NSN 5905-01-286-2130
NSN 5960-00-892-0990
NSN 5935-01-265-1111
NSN 5965-01-057-3843
NSN 5915-00-736-8821
NSN 6645-00-300-6459
NSN 5925-01-515-1378
NSN 5910-01-023-7995
NSN 5960-00-889-5470
NSN 5996-01-208-9995