Highlights Fresh calibration solution at any time Long shelf life Simple preparation: Dissolve 1 tablet in 20 ml deionized water Lovibond's colour-coded pH buffer tablets are ideal for the fresh preparation of calibration solutions without producing large quantities of packaging material. Simply dissolve one pH buffer tablet in 20 mL of deionized water. After 90s dissolution time, the desired pH value of 10 is achieved, which can be identified by the green colouring of the solution. The tablet reagent in the aluminum blister pack withstands almost all climatic conditions and external influences and impresses with its long shelf life. Technical Data Description: Calibration solution: Dissolve 1 Tablet in 20 ml of DI waterpH Value at 25 °C : 10.01 ± 0.05 pH Color of Solution: greenStorage Temperature: 15 - 25 °C Available in pack sizes of 100 & 250 515600BT: 100 Pack 515601BT: 250 Pack