pH 5-9 Test Strips [Bag of 50 Strips]

Description

The pH 5-9 test strip is a narrow range strip and is ideal for weak solutions, such as alkaline or rain water, measuring in steps of 1.0 pH units.

Instructions:

1. Remove one pH 5-9 test strip from the bag, holding one end of the strip between your index finger and thumb. Do not touch the test pad with your fingers.
2. Dip the test strip about 1/2″ into the solution to be tested for 1-2 seconds.
3. Remove and shake off any excess liquid.
4. Compare immediately to the color chart. Do not allow the test strip to dry before reading against the color chart.