pH test paper is used to determine the acidity or alkalinity of a solution. Using pH test paper provides a quick visual indication of the degree of acidity or alkalinity present in whatever solution is being tested. This is a vital tool for classroom projects, STEM activities, or field trips. They are supplied in a clear plastic vial containing 100 - 3mm x 12mm strips. Color guides included in vial. Made in America.

Available in Single Vials, or Packs of 10 Vials.