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 6685-00-106-7481
NSN 5996-00-597-2234
NSN 6610-01-555-8364
NSN 5920-01-217-8379
NSN 6135-01-079-7852
NSN 5985-01-172-6479
NSN 5935-00-148-2642
NSN 6320-01-384-3850
NSN 6110-01-493-8283
NSN 5920-01-261-4801
NSN 6620-01-184-3193
NSN 5950-01-520-7406