Hydrion Tri-Check Buffer Set

The Hydrion Tri-Check Buffer Capsule set is perfect for quick and easy pH meter calibration.  When mixed with distilled or deionized water, Hydrion Buffer Capsules will accurately produce 100mL of solution at a pH of 4.00, 7.00 and 10.00.  Hydrion Buffers are free flowing soluble powders that prepare clear or color safe solutions in minutes.  Each set contains 1 vial of each buffer standard, with each vial containing 10 capsules.  Included with the set is 1 vial of Hydrion Color Key Buffer Preservative which prolongs the shelf life of the solution and automatically tints each solution to its own color value: orange for 4.00pH, green for 7.00pH and blue for 10.00pH.