Laboratory flask sizes are specified by the volume they can hold , typically in metric units such as milliliters -LRB- mL or ml -RRB- or liters -LRB- L or l -RRB- .

Their size are chosen by the volume they can hold , and is measured in metric units , like leters -LRB- L -RRB- or mililiters -LRB- mL -RRB- .
