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 5999-00-118-4867
NSN 5996-01-235-1275
NSN 6240-00-838-9030
NSN 5990-01-581-5103
NSN 5960-01-354-0762
NSN 6620-00-709-7389
NSN 6645-01-158-9967
NSN 4140-01-161-2741
NSN 5910-01-386-5169
NSN 6150-01-446-6535
NSN 5895-00-825-3099
NSN 4140-01-133-6446