Test strips Pehanon 2.8-4.6

Test strips Pehanon from MN - pH range 2.8 - 4.6. An easy way to measure the pH of a liquid is to use these test strips. These consist of paper strips with a few colored squares on them. Before use, dip the entire strip in the liquid to be tested. The square in the middle (with no number in it) will discolour. Compare these with the other squares: the colour that most closely matches the colour in the center indicates the approximate pH. For measuring very small quantities, only the square without a value imprint can be dipped in the liquid. Because the other squares do not get wet, it is a less accurate method. pH steps: pH 0.2 or 0.3 We sell these strips especially for use with preservatives based on organic acids: a low pH is required for this, but not too low, which can be bad for the skin.