Product Overview

Our pH 7.00 Calibration Buffer is a high-precision, NIST-traceable solution designed for the accurate calibration of pH meters and electrodes. With a certified value of pH 7.00 ± 0.01 at 25 °C, this buffer provides the neutral midpoint essential for two- and three-point calibration routines, ensuring consistent and reliable pH measurements in laboratory and field settings.

Formulated with ultrapure water and high-grade reagents, it is free from contaminants that could affect accuracy or instrument response. It is ideal for use in analytical chemistry, clinical testing, environmental monitoring, food and beverage QA, and educational laboratories.

Key Features:

• Certified pH 7.00 ± 0.01 at 25 °C
• NIST-traceable for audit-ready documentation and compliance
• Yellow color for easy visual identification
• Stable, color-coded formulation extends usability and accuracy
• Available in 500 mL, 1 L, 3.8 L, and 20 L HDPE containers

Recommended Use:

• Use as the first point in any multi-point pH calibration
• Commonly used alongside pH 4.00 (red) and pH 10.00 (blue) buffers—also available—to complete three-point calibration
• Always rinse electrodes with deionized water between buffers to avoid cross-contamination

pH 7.00 Calibration Buffer delivers visual clarity, measurement accuracy, and traceable reliability, making it a trusted choice for routine and regulated pH calibration workflows.