Femtolitre
From Infogalactic: the planetary knowledge core
The femtolitre (US femtoliter) is the metric unit of volume equal to 10−15 litres, or one thousand trillionth (European) or one quadrillionth (American) litre. It is abbreviated fL or fl. One femtolitre is the same as one cubic micrometre (μm)3.[1]
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