You probably already know that water in the biopharma industry is used as an excipient, for testing both raw materials and finished products, and for cleaning. However, it might surprise you to find out that there are exactly 8 types of water for pharmaceutical use recognized by the FDA. It might surprise you even more that DI water isn’t one of them. Nor are the types 1, 2, and 3 water found in laboratories. There are 4 types of water that are of concern to most pharmaceut