Determinarea valorii pH-ului apei

1 x 524 005W2 Mobile-CASSY 2 WiFi
1 x 667 4172 Senzor de pH cu arbore de plastic, BNC
1 x 524 0672 Adaptor pH S
1 x 674 4640 Solutie tampon pH 4,00, 250 ml
1 x 674 4670 Solutie tampon pH 7,00, 250 ml
1 x 672 5250 Clorura de potasiu sol., 3,0 mol/l, 100 ml