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 5925-00-691-0023
NSN 5895-00-455-8952
NSN 6610-01-156-0810
NSN 5945-01-437-9410
NSN 5975-01-608-4531
NSN 5920-01-511-3996
NSN 6685-01-531-1910
NSN 5996-01-219-3778
NSN 6105-00-573-9044
NSN 6150-01-352-1784
NSN 6105-00-799-1581
NSN 6110-01-318-2640