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 5996-00-708-6937
NSN 5925-01-447-3279
NSN 5935-01-389-1925
NSN 6685-01-143-4622
NSN 2925-00-824-2186
NSN 4140-00-146-3269
NSN 5915-01-247-2807
NSN 5855-00-879-7245
NSN 6620-01-423-7300
NSN 5985-01-526-3787
NSN 6110-00-170-6520
NSN 6150-01-650-1898