Table 1.

Colistin BMD plates Incubation conditions.

Organism	Incubation conditions	Incubation time	Expected QC strains’ MIC (ug/mL)
Enterobacteriaceae, Non-Enterobacteriaceae and Pseudomonas aeruginosa	35 +/−; Ambient air	16–20 hours	E. coli ATCC 25922 (0.25–1); P. aeruginosa ATCC 27853 (0.5–2)
Acinetobacter spp.	35 +/− Ambient	16–20 hours	—