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 5925-01-287-9206
NSN 5930-01-174-7076
NSN 6135-01-400-2947
NSN 5905-01-554-1884
NSN 5915-01-104-4044
NSN 2925-01-650-3412
NSN 5925-00-816-9929
NSN 5905-01-162-0817
NSN 5945-01-055-0824
NSN 5965-01-221-8182
NSN 6220-00-931-8837
NSN 6105-00-153-7967