Review on Litmus paper (indicator) for testing water quality 80 pcs, test strips for measuring soil acidity, pH tester 1-14, for water analysis by Ewa Grska ᠌

It is quite difficult to assess the acidity of a particular medium by the color of the strip, because it is undesirable to apply wet paper to the color scheme - it will get wet, the colors will be distorted and then you will not be able to use it. And even with the closest location of the strip to the scheme, it is very difficult to unequivocally determine which color your result belongs to more. In general, the water managed to determine only the approximate range of acidity from 5 to 9. Decide how much this result suits you. It does not suit me.