Check the acidity / alkalinity of your presoak and your clear waste-water. Scotch tape like dispenser. Tear off a strip and dip into any liquid and know the pH by matching the color to the color guide on the dispenser. Works in colored dye baths as well.
Ph Test Paper Range is 1-14 Level
15 ft. roll; Use approx. 2 in. per test (approx. 90 tests per roll)
Shelf life is approx. 1 year after opening. Store in a dry, air-tight container.
Made in: UNITED STATES (USA)