pH indicator strips pH 7.0 - 14.0
PH Indicator Strips PH 7.0 - 14.0, 100 strips per pack
Johnson Test Papers pH indicator strips pH 7.0 - 14.0 available in 100 strips per pack. For use in solutions to give a pH reading.
Dip the strip into the solution you are testing for around 1-2 seconds and remove. The strip will then change colour, you should compare this colour against the pack's colour chart in order to give a pH reading.
100 strips per pack