CFU/mL Viable Plate Count
Colony-forming units per mL of the original sample from colonies counted, dilution factor, and volume plated, with a countable-range validity flag.
Formula and source
CFU/mL = colonies / (dilution_factor * volume_plated). The dilution factor is accepted as a fraction (1e-5) or a times value (100,000) and normalized to the same result.
Per the FDA Bacteriological Analytical Manual (BAM) Chapter 3 (Aerobic Plate Count) and APHA Standard Methods, by name; both public/free.
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