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 6645-01-463-3441
NSN 5950-00-149-0912
NSN 6105-01-257-5716
NSN 6320-00-070-4544
NSN 6240-01-445-4232
NSN 6145-00-378-3836
NSN 5985-01-561-9511
NSN 6610-00-883-2804
NSN 5990-00-471-9767
NSN 5999-01-123-9685
NSN 6620-01-210-9002
NSN 5835-01-017-7486