Ricca Chemical Company 9150-2.5 Water, ACS Reagent Grade, ASTM Type I, ASTM Type II, in plastic containers, 10 L is manufactured by a continuous process that has been validated to produce high purity water and is intended for general laboratory use. The specifications on Water, ACS Reagent Grade, ASTM Type I, ASTM Type II meet, as a minimum, ASTM D-1193 Type I-IV and ACS Reagent Grade, at time of packaging. This product is lot numbered and expiration dated.