What are the types of reagent grade water?

Reagent grade water is classified into several types based on purity and specific applications. The most common types include Type I, which is ultra-pure water suitable for high-precision applications like HPLC and molecular Biology; Type II, which is used for routine laboratory procedures and general analytical work; and Type III, typically used for non-critical applications such as washing glassware. The classification often reflects the levels of contaminants and the intended use of the water.