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 5910-01-400-0891
NSN 5915-01-513-0300
NSN 5905-01-082-6791
NSN 5915-00-759-7784
NSN 5998-00-239-2743
NSN 6110-01-546-4685
NSN 6610-01-059-1330
NSN 5915-01-368-5668
NSN 5960-01-364-1318
NSN 5935-01-231-6913
NSN 5998-01-359-9185
NSN 4140-01-528-8364