pH Buffer Capsules, Oakton® Instruments

Fresh pH calibration solution anytime and anywhere.

• One capsule to 100 ml of deionized or distilled water
• Dry and compact—easily take them anywhere
• Unused capsules have a five-year shelf life
• Each vial contains 10 capsules

Buffer salts inside capsules require 100 mL of deionized or distilled water to produce a clear pH calibration solution accurate to ±0.02 pH (at 25°C) with traceability to NIST standards. Capsules are easier to store and transport than prepared aqueous buffer solutions. Capsules are color-coded for easy identification.

Once dissolved, store buffer solution in an airtight container at room temperature for up to three weeks.