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 5855-01-400-1590
NSN 5950-01-267-0917
NSN 5960-01-502-6270
NSN 6650-01-633-9147
NSN 5895-01-417-4388
NSN 6620-00-877-3266
NSN 6150-01-277-5992
NSN 5990-01-548-3711
NSN 5915-00-254-1234
NSN 6105-00-928-3699
NSN 5996-00-488-7060
NSN 5905-01-412-1050