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The Apera Instruments AI1121 pH 1.68 Calibration Buffer Solution is color-coded and standardized against NIST certified pH references within 0.01 pH at 25°C (77°F). It's ideal for the calibration of pH meters/testers that can automatically recognize pH 1.68 standard e.g. Apera PH60, PH700, PH800, PC400S. Since pH level is affected by temperature, a temperature/pH reference chart is provided on the bottle label for reference.

All the solutions are double-sealed, not subject to the DOT shipping restrictions, and have a 2-year shelf life. The expiration date is printed on the bottle. 

MSDS documents are downloadable. Certificate of analysis can be achieved by request.

Note: Store at room temperature and away from direct sunlight. Keep the bottle tightly closed when not in use. Keep out of reach of children.

pH 1.68 Standard pH Calibration Buffer Solution

    • High Accuracy (±0.01 pH): standardized against NIST certified pH references within 0.01 pH at 25°C (77°F).
    • For the calibration of pH meters/testers that can recognize pH 1.68 solution
    • Double-sealed, 2-Year shelf life
    • Expiration date and Temperature/pH reference chart provided for reference
    • Non-hazardous product (MSDS is downloadable)
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