Amtra Test pH, to control the acidity values in freshwater and marine
The pH is certainly the most famous chemical value and indicates the degree of acidity of the water (H + ion concentration). The pH is measured in degrees and its conventional scale ranges from 0 ° to 14 °: the values between 0 ° and 7 ° are called acids; those from 7 ° to 14 ° alkaline (or basic). Grade 7 indicates neutrality. The pH test has a measuring range of 5 ° to 10 ° divided into 9 intervals.