All Oakton pH buffer solutions are freshness dated, and standardized against NIST-traceable references to ensure quality. ±0.01 pH at 25°C.|OAKTON pH buffer solution bottles are labeled with the name and CAS number for all ingredients (for“Right-to-Know” requirements), and are supplied with an MSDS (Material Safety Data Sheet).
- Buffer Value: 4.01
- Volume (mL): 4000
- Color: Red
- Description: Buffer Solution, pH 4.01; 1 gal.