Ensure accurate and reliable pH calibration with this pH Buffer Solution 4.01, specially formulated for use at 25 °C. The red solution is traceable to NIST standards, guaranteeing precision and quality for laboratory, industrial, and educational applications. Available in 90 ml and 1-liter bottles, it is ideal for calibrating pH meters, electrodes, and sensors with confidence.

Features:

• pH 4.01 buffer solution at 25 °C

• Red color for easy identification

• Traceable to N.I.S.T. for accurate calibration

• Available in 90 ml and 1-liter bottles

• Ideal for lab, industrial, and educational use

• Ensures precise and reliable pH meter calibration