Neutral Litmus pH test paper tests for Neutrality of a solution, or its acidity or alkalinity, does not come with a color chart, test strip will turn red if dipped into an acidic solution (pH <7) or blue if dipped into an alkaline solution (pH >7), Size: 100 test strips
Dual Range QAC Test Strip, Low Range: 0, 10, 20, 40, 80, High Range: 0, 100, 200, 400, 800, Applications: Food and Beverage, Laundry and Sanitation, Industrial Water Boiling and Cooling, Water and Wastewater, Chem