1.0-12.0 Hydrion Double Roll pH Papers consist of two rolls of pH papers packaged in a protective plastic dispenser with stainless steel cutoff lips and two matching colour charts. pH colour changes are distinct and easily matched to the colour chart.
Hydrion Double Roll pH Wide Range Papers have a clear colour match at each full pH unit:[1.0][2.0][3.0][4.0][5.0][6.0][7.0][8.0][9.0][10.0][11.0][12.0].
Each carton contains 10 dispensers, each consisting of two(2) 15-foot rolls of test paper and matching colour charts. Provides for approximately 2000 tests.
Product Directions:
Simply tear off a small strip of pH paper, dip into the test solution, then instantly compare the resulting colour with the matching pH colour chart.
