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 5999-01-257-1184
NSN 6650-01-565-1471
NSN 5930-00-623-0416
NSN 5905-00-203-3929
NSN 4140-01-201-4359
NSN 5915-00-243-9301
NSN 6610-01-539-9084
NSN 5996-00-402-6071
NSN 6620-01-324-7809
NSN 5985-00-948-7696
NSN 5965-01-461-4480
NSN 6650-01-106-1868