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 6150-01-373-8628
NSN 5975-01-383-4766
NSN 6620-00-596-1951
NSN 6240-00-717-0844
NSN 5965-01-308-3786
NSN 5965-00-067-6780
NSN 6145-00-871-9112
NSN 5925-01-174-7946
NSN 5925-01-048-5324
NSN 6110-01-153-7232
NSN 6150-00-144-7115
NSN 5965-01-555-8775