Microliters
Microliters are a unit of volume in the metric system used to measure very small amounts of liquid. One microliter is equal to one millionth of a liter. This tiny unit of measurement is often denoted by the symbol μL. To put it into perspective, a single drop of water is roughly equivalent to about 50 microliters.
UK quarts
A UK quart is a unit of volume in the United Kingdom. One UK quart is a quarter of a UK gallon at about 1.13652 liters.