Thermo Fisher Scientific ORION Special Reagents, Thermo Fisher Scientific Scientific 951011 Alkaline Reagent 10M NaOH For Ammonia and Cyanide Electrodes, 475 Ml Bottle

Unlike many acid reagents Orions contain a large amount of water making electrode testing less complicated and less messy. Orions are designed to work with either electrode giving rise to or near the theoretical pH point. They do not however give rise to the standard pH point of view.