Tampon pH 4

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 90 s dissolution time, the desired pH value of 4 is achieved, which can be identified by the pink colouring of the solution. The tablet reagent in the aluminium blister pack withstands almost all climatic conditions and external influences and impresses with its long shelf life.