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 5950-01-279-0048
NSN 5895-01-568-0965
NSN 6240-00-541-7032
NSN 6220-01-515-7586
NSN 5935-01-634-0668
NSN 5920-01-384-1682
NSN 5985-00-402-0059
NSN 5915-01-622-0573
NSN 7035-00-557-5570
NSN 5935-00-531-9347
NSN 4140-01-035-5530
NSN 5895-00-342-9581