The pH test strips and papers are based on acidobasic indicators, which change their colors in a particular pH range. Acidobasic indicators are generally very stable compounds, and we have chosen the best indicators based [...]
We have several different packaging options, including: Clear resealable bags Amber resealable bags (light protection) Foil bags (light and humidity protection) Clear vials White flip-top vials (light and moisture protection) Amber bottles (light protection) [...]
Test strips should be stored in closed vials/bags,in a cool, dry place out of direct sunlight. The ideal condition is 25C (77F). A range of 20C (68F) - 30C (86F) is acceptable. Test strips should not [...]
Unless otherwise stated, Precision Laboratories test strips have a shelf-life of two years from the date of purchase when stored properly.