Oakton WD-05942-24 Calibration Buffer, pH 4.01, 4 Liter

Ideal for laboratory and field analysis. Oakton pH Buffer Solutions have pH/temperature tables printed on the labels for accurate calibrations. Manufactured under ISO 9000 quality guidelines and traceable to NIST standards. Buffer is colored for quick-glance recognition and does not effect accuracy or stability. Standardized against NIST-traceable pH references for meters with 0.01 resolution. Store buffers away from direct sunlight.

Features:

• All Oakton pH buffers are traceable to NIST standard reference materials
• Buffer solution lets you calibrate pH instruments to ensure accuracy
• NIST/USA buffer value of pH 4.01