The result is the water hardness expressed in grains per gallon, or GPG. Check for errors. Multiply your answer by 17.1. If the result is neither equal to nor very close to the original value in mg/L, there was an error in your calculations. Repeat the conversion process. Tips Cite ...
second only to boron. Silicon is the eighth most common element in the universe in terms of mass, but rarely appears in the crust as a pure element. It is widely distributed in dust, sand grains, planetary-like and planetary in various forms of silica (silicates) or silicates. More than...