Product description
Product Name: Certified Standard pH Buffer Calibration Solutions
Key Features and Specifications
| Specification | Description |
| Function | Calibration and Verification of pH meters and electrodes |
| Material Type | Aqueous Chemical Solution (Standardized Reference Material) |
| Accuracy/Tolerance | High Precision (e.g., ± 0.01 pH unit at 25°C) |
| Available pH Values | Standard values include pH 4.00, pH 7.00, and pH 10.00 (Others available upon request) |
| Temperature Compensation | pH value is clearly labeled for various temperatures (often 15°C, 20°C, and 25°C) |
| Traceability | NIST Traceable or equivalent International Standard for guaranteed accuracy |
| Shelf Life | Long-term stability, typically sealed in air-tight, single-use or high-grade storage bottles |
Product Summary
pH Buffer Solutions are essential, highly precise liquid standards used to ensure the accuracy of all laboratory pH measurements. Every pH electrode must be calibrated regularly using at least two, preferably three, standard buffer solutions that bracket the anticipated sample pH range.
Our Standard pH Calibration Solutions are manufactured under strict quality control conditions to an exact, certified pH value. This allows the user to accurately set the reference points for a pH meter, guaranteeing reliable and reproducible data across applications in chemistry, environmental science, and quality control.
Primary Applications
Analytical Chemistry & Quality Control:
Instrument Calibration: Routine, mandatory calibration of pH meters to ensure the accurate measurement of solution acidity or alkalinity.
Quality Assurance: Verification of process control points and final product quality in food, beverage, and chemical manufacturing.
Materials Chemistry & New Energy Research:
Electrolyte Preparation: Used to precisely control the pH of solvents and precursor solutions during the synthesis of nanoparticles, polymers, and battery materials, as pH strongly influences particle morphology and reaction kinetics.
Biochemical / Life Sciences:
Media Preparation: Calibrating instruments used to maintain the critical pH levels of cell culture media, fermentation broths, and buffer systems used for protein purification.
Usage and Ordering
Buffer Selection: Use a minimum of two buffer solutions that span the range of your expected sample pH (e.g., pH 4.00 and pH 7.00 for acidic samples).
Storage: Keep bottles tightly sealed and store at a consistent temperature to prevent contamination or changes in concentration due to CO2 absorption from the air.
Bulk Supply: Available in economic bulk volumes for laboratories with high-frequency calibration requirements. Contact us for custom pH value solutions.
