Buffer capsule set, pH4, pH7, pH10
Each capsule is sufficient to make 100 mL clear buffer solution.
Buffer set comes with one vial preservative solution.
Prepared solutions keep 3 weeks (or 3 months with preservative added).
Preservative contains a pH indicator and colours each buffer solution for easy identification.
QTY: One vial each of pH4, pH7, pH10 capsules plus preservative fluid. Each vial contains 10 capsules
