My pH tester says use distilled water for calibration. The buffer powder says use deionized water. Will purified water work just as good? They all have their differences.
salsalady said:To calibrate, I use premixed buffer solutions and 1/2 teaspoon measuring spoons. Deep enough to cover the probe bulb, but small enough to not use a lot of solution.
salsalady said:1/2 teaspoon? Hmmm...That must of been a re-wine typo. . It more than likely requires a teaspoon of buffer...
What I was getting at and did not clarify, was that the shape of the spoon does affect the amount of solution needed. Some spoons are shallow and would require a tablespoon to get the probe immersed. Some spoons I have are a deep bowl, so I can immerse the probe, swirl it around and set calibration.