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 5925-00-267-3044
NSN 5965-01-056-1303
NSN 5895-01-189-6167
NSN 6320-00-483-0451
NSN 6650-01-278-2151
NSN 6610-00-117-7647
NSN 6130-01-480-8598
NSN 5895-00-732-9204
NSN 5965-00-404-0486
NSN 5960-00-009-8082
NSN 5999-01-407-8708
NSN 6645-00-066-6868