I make no assumptions at all. A label showing 30mg means that's everything inside the container. I decide how much BAC to add.
Reading more about this is just making me unsure of what to do next. The ready mixed ones my physician supplies come at twenty five milligrams for each milliliter and usually arrive in three milliliter containers holding seventy five milligrams altogether. Now that I plan to handle mixing on my own, suppose I order a thirty milligram container of the powder version. Once it arrives, does the thirty milligrams of dry material inside mean I should add one milliliter of bacteriostatic water to reach that strength per milliliter, or does the amount of powder allow for three milliliters of water instead to reach a total of ninety milligrams across three milliliters?