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 5905-00-553-9985
NSN 5930-01-004-2601
NSN 5925-00-009-9818
NSN 5950-00-241-6943
NSN 5915-01-157-5502
NSN 5990-01-065-0492
NSN 4140-01-599-9383
NSN 6135-01-598-9889
NSN 5930-01-565-5628
NSN 6135-00-209-6918
NSN 6110-00-477-9677
NSN 6130-01-385-6602