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 5905-01-531-2100
NSN 6685-00-081-2044
NSN 5996-01-629-9093
NSN 5950-00-605-9158
NSN 5965-00-686-0957
NSN 5935-01-258-9648
NSN 5930-01-123-9017
NSN 5910-01-341-8418
NSN 6320-01-072-2073
NSN 6645-00-350-8070
NSN 5905-01-320-3932
NSN 5990-01-023-3307