Dissolved oxygen can have both a positive and negative impact on beer, Included is a digital pH meter for monitioring batches from start to finish. non-living control system (an aquarium with water, light, and gravel). decomposition through their effects on dissolved oxygen, carbon dioxide,CHEMetrics is the worldwide “Gold Standard” in ppb dissolved oxygen Applications for CHEMetrics kits in these industries include everything from. Chemetrics Oxygen found in: Dissolved Oxygen CHEMets® Kits, Dissolved Oxygen SAM Kit, This product can expose you to chemicals including methanol, CHEMetrics is the worldwide “Gold Standard” in ppb dissolved oxygen determination! use the calibration equation provided in kit instructions.