Dissolve a solution in water, then take the correct milliliters out. You can do the math yourself :-D.
Like if you put a teaspoon of the stuff every liter, you have 1/1000th of a teaspoon in every milliliter. get it? :-D.
Like if you put a teaspoon of the stuff every liter, you have 1/1000th of a teaspoon in every milliliter. get it? :-D.