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 5835-01-447-0467
NSN 6685-01-087-4432
NSN 6130-01-447-3164
NSN 6620-01-185-6391
NSN 6135-01-222-5464
NSN 5905-00-054-5521
NSN 6130-01-497-0174
NSN 5935-01-073-8754
NSN 5975-01-575-7809
NSN 5965-01-450-7694
NSN 5895-01-258-5933
NSN 5950-00-058-9593