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 6620-00-155-2608
NSN 5925-00-069-3015
NSN 5915-01-648-7354
NSN 5925-01-467-3625
NSN 5920-01-209-6368
NSN 6105-00-984-6141
NSN 7035-00-486-0367
NSN 5855-01-441-0401
NSN 6130-00-105-0500
NSN 6220-01-196-2116
NSN 5935-00-382-4016
NSN 5999-01-013-2581