The pH value can be determined safely and easily with the pH-Fix indicator sticks. In contrast to conventional indicator papers, the indicator dyes in pH test strips are chemically bound to the cellulose fibre. This reliably prevents the dyes from bleeding even in strongly alkaline solutions. The sample is not contaminated. The pH-Fix indicator sticks offered here cover the pH range from 2 to 9. The colour scale differentiates in steps of 0.5 so that, for example, the pH value of 5.5, which is important for preservation, can also be detected.
 
One pack contains 100 test strips.