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pH Buffer Capsule Kit

pH Buffer Capsule Kit

pH Buffer Capsule Kit


The pH Buffer Capsules Kit is a convenient set of three vials containing capsules to make pH 4, pH 7, and pH 10 buffer standards for calibrating pH sensors. Included with the set is one vial of Hydrion Color Key Buffer Preservative.


Each vial contains 10 capsules, each of which produces 100 mL of solution when mixed with DI water. Add three drops of the buffer preservative to 100 mL of your buffer solution to prolong the shelf life. Hydrion Color Key Buffer Preservative is a combination mold inhibitor and universal indicator for color coding the buffer solutions: orange for pH 4, green for pH 7, and blue for pH 10.

What's Included

  • (10) pH 4 – Orange
  • (10) pH 7 – Green
  • (10) pH 10 – Blue
  • Color Key Buffer Preservative
  • Solution preparation instructions
  • Safety Data Sheets


User Manual

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Consumable. Warranted on arrival only.
See our warranty policy

Safety Data Sheet (SDS)

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Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications.