Teknova’s water meets the standard for ASTM TYPE I.   It is delivered at a resistance of 18 megaohms then purified by glass distillation, ion exchange, a charged carbon adsorption column and undergoes reverse osmosis, UV treatment and sterile-filtration with a 0.1 micron filter.   Teknova offers molecular biology grade water for PCR applications, reagent grade water, DEPC treated water for RNA work, and Cell Culture grade water for the preparation of tissue culture reagents and media.