Hanna Instruments pH 4 Buffer Solution

Reliable pH 4 calibration buffer for accurate meter standardization and lab use.

• NIST traceable pH 4.01 calibration buffer for consistent measurement accuracy
• Clearly labeled bottle with lot number and expiration date
• Tamper-proof seal preserves solution quality and integrity
• Ideal for calibrating meters used in slightly acidic testing environments
• Long shelf life when unopened, ensuring dependable classroom use

The pH 4 Buffer Solution (500 ml) provides a dependable standard for calibrating pH meters and electrodes in laboratories and classrooms. It is designed to deliver accurate results in solutions where the expected pH is slightly acidic, making it well-suited for general chemistry, environmental testing, and educational water quality studies.

Each bottle of buffer solution is traceable to NIST standards to ensure precise and consistent calibration performance. The packaging includes a clearly printed lot number and expiration date for traceability and quality assurance. A tamper-proof, airtight seal protects against contamination and evaporation, maintaining the stability of the solution throughout its shelf life.

This buffer is ideal for use in high school and college laboratories, providing reliable calibration for meters used in lessons on acidity, water testing, and solution chemistry. When combined with neutral (pH 7) and basic (pH 10) buffers, it helps students understand the full range of pH measurement and instrument calibration procedures.