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 5990-00-179-2576
NSN 5975-01-079-2432
NSN 4140-01-417-1850
NSN 5935-01-381-2717
NSN 6620-00-313-9237
NSN 6135-01-384-7155
NSN 5925-01-412-3733
NSN 5945-00-908-8309
NSN 5996-01-361-8299
NSN 4140-00-054-6467
NSN 6150-01-085-7804
NSN 6240-01-424-0980