Wide range, general purpose, universal pH Indicator paper book with 80 strips that can easily be detached from the book on a perforated line.
All you have to do is just dip in and read off by comparing the color of the strip with the color chart! Use these pH indicator strips
for rapid measurement of pH in a liquid sample.
pH papers are available for wholesale and retail.
Color will not change if the solution is neutral. It will turn red in acidic liquids and it will turn green and blue in alkaline liquids.