PH Test Paper Laboratory Supplies Ph Paper

pH test paper is a kind of test paper for detecting acid and alkaline substances mixed with more than indicator. There are 14 medium color cards to judge the content of pH value. Different pH content has different color changing ranges, and the smaller the number, the stronger the acidity, the larger the value, the stronger the alkalinity
storage: test paper should be stored in a dark and dry place, and cannot be re-stored with acid and alkaline air.