πότε κάνεις βαθμονόμηση με 9.18 σε phμέτρο? Θέλω να πω με το 6.86 μετράει μέχρι 9.00 ή όχι?
Water-soluble powder for calibrating pH meters.
Dissolve the contents of the package in 250 ml of water and use this solution to calibrate your pH meters.
Description
Description
Water-soluble powder for calibrating pH meters.
Dissolve the contents of the package in 250 ml of water and use this solution to calibrate your pH meters.