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 6645-01-261-4863
NSN 2925-01-394-5650
NSN 6130-01-569-0031
NSN 6620-00-464-1787
NSN 4140-01-361-2292
NSN 5905-01-111-9400
NSN 6610-00-623-5783
NSN 5910-01-607-6699
NSN 6240-01-562-6938
NSN 7035-00-173-2281
NSN 6150-00-278-1294
NSN 5945-01-017-3567