Type III Water - Type III water can be used for any non critical works in the laboratory like Glassware Washing, Filling Autoclaves or feed to Ultra Pure Water Systems Type II Water - Type II water is used in general laboratory applications such as buffers, microbiological culture media preparation, for preparation of reagents for chemical analysis etc; Can be used as feed to Type 1 water systems Type I Water - Type I water is required for critical laboratory applications such as HPLC mobile phase preparation, blanks and sample dilution in GC, HPLC, AA, ICP-MS and other advanced analytical techniques; preparation of buffers and culture media for mammalian cell culture and IVF; production of reagents for molecular biology applications (DNA sequencing, PCR).