How to care for Balances and Science Laboratory Balance Use. Balances are an essential component of any high school science lab. Flinn Scientific carries electronic balances that vary in precision from 1 g to 0.0001 g. Following are tips to properly use, store and maintain balances. Science Laboratory Balances should always be placed on a level and sturdy surface. Recalibrate electronic balances every time they are physically moved from one location to another.