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 7035-00-104-7613
NSN 5975-01-622-7584
NSN 5895-01-457-5244
NSN 6320-01-249-3236
NSN 5960-01-241-1844
NSN 5930-01-647-6203
NSN 6145-00-882-2500
NSN 6610-01-309-5361
NSN 6110-01-310-8983
NSN 5930-01-385-9065
NSN 5915-01-190-9476
NSN 7035-01-186-0024