4.3 to 6.8pH Range - Blue Litmus Acid Test Paper - 100 Strips
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 or field trips. Supplied in a clear plastic vial containing 100 3mm x 12mm strips. All include color guides in vial.