Hydrion buffer caps are perfect for quick and easy pH meter calibration. When mixed with distilled or deionized water, a Hydrion buffer capsule will accurately produce 100 ml of pH 2.00 solution. Hydrion pads are soluble, free-flowing powders that prepare clear or colour-safe solutions in minutes. An integrated preservative ensures durable “color-keyed” solutions to easily identify the pH value of the buffer solution. 

Each box contains 5 bottles, with 50 capsules per box. Each capsule produces 100 ml.of solution.