pH Calibration Buffer Solutions

Oakton calibration solutions are standardized against NIST-certified pH references within 0.01 pH at 77°F (25°C). Each solution is freshness dated, labeled with a pH vs. temperature table for accurate calibration (500ml bottles), and supplied with an MSDS (Material Safety Data Sheet).

20 ml "Singles" Assortment Pack

Oakton "Singles" buffer pouches offer a convenient option for quick calibration and spot checks. Pouches are air-tight and are high precision calibration standards. Each assortment pack includes five pouches each of pH 4, 7, and 10 buffers and a rinse solution. Include an assortment pack in all of your pH kits.

500 ml Bottles and Assortment Pack

For routine pH calibrations, a convenient 500ml bottle is available in pH 4.01, 7.00, and 10.00 NIST-certified buffer solutions. With a solution pack, you can order everything you need to calibrate, clean, and store your pH electrodes. Each assortment pack includes one 500-ml bottle each of pH 4.01, 7.00, and 10.00 NIST-certified buffers; one 500-ml bottle of cleaning solution for grease, oil, and protein removal; and one 500-ml bottle of storage solution to properly store your electrodes while not in use.