A weighing instrument that can resolve to 1 part in a 1,000,000 part of a gram. Typically, used to weigh small amount of chemicals very precisely.
how much moisture will this aspirin take before it becomes bad?
how much pollutant did we sucked thru this filter in an 8 hour period?
how much CO2 will this rebreather absorb in a 1 hour dive?
How much red pigment do we need to make this paint match the color on that Land Rover?
How much gold did we get from that 1 ton of rocks?
Let's use the microbalance in the lab.