pH Buffer solutions
: Hach
For calibration of pH meters.
Accuracy: pH is ±0,02 at 25 °C
: Traceable to NIST.
: Please note that the pH 4 and 10 buffers contain formaldehyde <0,1% and the pH 7 buffer contains formaldehyde 0,1 to 1%.
For calibration of pH meters.
Accuracy: pH is ±0,02 at 25 °C