Litmus Test Strip Booklets
pH Indicator Papers and Test Strips
No Color Chart Necessary.
- 25 sheets per booklet (8 booklets total)
- Strips measure 1.875″ L x 0.25″ W
Red litmus paper tests pH to determine if something is basic by turning blue if the pH is greater than 7. Alternately, blue litmus paper tests pH to determine if something is acidic by turning red if the pH is less than 7.