Description
Specifications Table
Product Name – Buffer solution, pH 6.86 (±0.01 @ 25°C), No Color, Specpure®, NIST Traceable
Quantity/Pack Size – 500ml, 1L, 4L
Form – Liquid
Grade – Specpure®
Application – pH meter calibration, analytical testing
Product Overview
This pH 6.86 buffer solution is a high-precision, NIST-traceable reference standard designed for accurate pH meter calibration and analytical testing. Formulated with Specpure® grade purity, it ensures minimal impurities and consistent performance across laboratory applications. The solution maintains a stable pH of 6.86 (±0.01 at 25°C), making it ideal for routine calibration procedures where precision is critical. Its colorless composition eliminates interference in optical measurements, while the NIST traceability guarantees compliance with international standards. Available in convenient pack sizes (500ml, 1L, 4L), this buffer solution is compatible with most laboratory glassware and automated systems. The sealed packaging prevents contamination and extends shelf life, ensuring long-term reliability. Whether used in research, quality control, or educational settings, this buffer solution delivers repeatable results with minimal lot-to-lot variation. The Specpure® certification further assures users of its suitability for sensitive applications where reagent purity directly impacts data integrity.
FAQs
1. What is the shelf life of this pH 6.86 buffer solution?
The unopened solution remains stable for 24 months from the date of manufacture when stored at room temperature. Once opened, use within 3 months for optimal accuracy.
2. Can this buffer be used with semi-micro pH electrodes?
Yes, the solution is compatible with standard and semi-micro pH electrodes, provided the electrode is properly rinsed with deionized water between measurements.
3. Is this buffer solution autoclavable?
No, autoclaving is not recommended as it may alter the pH value. The solution is supplied sterile and ready for immediate use.
4. How does NIST traceability benefit my calibration process?
NIST traceability ensures the buffer’s pH value is verified against primary standards, reducing measurement uncertainty and improving compliance with ISO/IEC 17025 requirements.
5. What alternatives exist for pH 7.00 calibration?
For pH 7.00 calibration, consider our Specpure® pH 7.00 buffer solution (NIST traceable), which follows the same purity and packaging standards as this product.










