Can be used for the rapid determination of pH values has led to many applications in laboratories and industry

• Instant pH readings
• Accurate for a wide range of routine pH testing
• Inexpensive
• Convenient and portable for field use

Each test strip has a central segment of indicator dye and, printed alongside, eight or more different color segments marked with corresponding pH values for matching purposes. The pH test value can be read off by direct comparison of the test strip color and the color bars. Excellent for colored solutions, when any changes in color of the paper stock are automatically cancelled out.