The Ricca Chemical potassium AA standard with a composition of 96.84% water, 2.91% nitric acid and 0.25% potassium nitrate, is suitable for research & laboratory use. It can be stored at a temperature of 15 to 30 degree C.

The Ricca Chemical potassium AA standard with a composition of 98.50% water, 1.31% hydrochloric acid and 0.19% potassium chloride, is suitable for research & laboratory use. It can be stored at a temperature of 15 to 30 degree C.