Comparator, Wide Range, Ph 1-11, 1.0 Ph Units, Each

Details:

In transparent plastic dispensers, for determination of ph values of colorless liquidstests are made by dipping a strip of the paper in the liquid to be tested and comparing the color with a chart in the comparatordispensers contain two 15’ rolls of 1/4” wide test paperreplacement test papers are packed in heat sealed aluminum foil and tightly secured in a plastic case. Refills include five 15’ rolls of paper and two color charts. Fit single and dual roll dispensers.