Oakton WD-05942-24 pH 4.01 Calibration Buffer Solution, 4 Liter Bottle (each)

Oakton buffers for meters with 0.01 resolution are standardized against NIST-traceable pH references within 0.01 pH at 77°F (25°C).
All Oakton pH buffer solutions are freshness dated and labeled with pH vs temperature tables for accurate calibration.

Store buffers away from direct sunlight. Sold in individual bottles; 500-mL bottles are also available in cases of 12, 4-L(1-gal) bottles in cases of four.

• Standardized against NIST traceable materials

Oakton pH buffer solution bottles are labeled with the name and CAS number for all ingredients (for 'Right-to-Know' requirements).