The Certipur buffer solution (pH 2.00) is a high-precision reference standard designed for the calibration of pH meters and ensuring the metrological traceability of measurement results in analytical laboratories.
This buffer solution (composition: citric acid / sodium hydroxide / hydrogen chloride) belongs to the Certipur® product line, which guarantees compliance with the strictest quality standards. The solution is analyzed in an accredited laboratory (ISO/IEC 17025) and is characterized by high stability. The pH value of 2.00 (at 20°C) is precisely determined and confirmed by a Certificate of Analysis. Its primary feature is direct traceability to primary reference materials (SRM) from leading metrological institutes such as NIST (USA) and PTB (Germany).
Advantages
- High Precision: Guaranteed pH value with a narrow tolerance (± 0.02 pH).
- International Traceability: Direct link to NIST and PTB standards to ensure global consistency in measurements.
- Reliability: The Certipur® line is recognized as a gold standard in analytical chemistry and pharmaceuticals.
- Ready-to-use: Prepared solution that requires no additional mixing or dilution.
- Temperature Stability: A detailed temperature dependence table is provided on the label for accurate compensation during measurements.
Technical specifications
| Catalogue number | 1.09433 |
| Product line | Certipur® |
| pH Value | 2.00 ± 0.02 (20 °C) |
| Composition | Citric acid / Sodium hydroxide / Hydrogen chloride |
| Traceability | NIST (SRM), PTB |
| Accuracy | ± 0.02 pH units |
| Storage temperature | 15 – 25 °C |
| Certification | ISO/IEC 17025 (Accredited Lab) |
| Brand | Merck |
