Oakton 35653-02 pH Calibration Buffer Pouch, pH 7.0 - 20 pcs.

Buffers are traceable and offer ±0.01 accuracy at 77 °F (25 °C). Pack of 20 pouches. All Oakton pH buffer solutions are manufactured under ISO 9000 quality guidelines and traceable to NIST standard (for meters with 0.01 resolution). A pH/temperature table is printed on the label for accurate calibrations.

Features:

• Single-use pouch-just tear, dip, calibrate
• pH value 7
• Standardized to NIST-traceable pH references
• Pack contains 20 pouches