Description
Specifications Table
Product Name – Buffer solution, pH 5.00 (±0.01 @ 25°C), No Color, Specpure®, NIST Traceable
Quantity/Pack Size – 550 ML
Form – Liquid
Grade – Specpure®, NIST Traceable
Application – pH meter calibration, analytical testing, quality control
Product Overview
This pH 5.00 buffer solution is a high-precision, NIST-traceable reference standard designed for accurate pH meter calibration and laboratory applications requiring exact pH measurements. Formulated with Specpure® grade purity, it ensures minimal ionic interference and exceptional stability, delivering consistent results across repeated uses. The solution maintains a tightly controlled pH of 5.00 with a tolerance of ±0.01 at 25°C, making it reliable for critical calibration procedures in research, industrial, and educational settings. Its colorless composition eliminates optical interference, while the 550 ML pack size provides an optimal balance between usability and shelf life. The NIST traceability guarantees compliance with international metrological standards, ensuring traceability to primary reference materials. This buffer is compatible with most pH electrodes and meters, offering seamless integration into existing lab workflows. Store at room temperature in a tightly sealed container to preserve accuracy and prevent contamination.
FAQs
1. What is the shelf life of this pH 5.00 buffer solution when stored properly?
The solution remains stable for 12-18 months from the date of manufacture when stored in its original, tightly sealed container at room temperature (15-25°C), away from direct sunlight and moisture. Always check the expiration date on the label for precise guidance.
2. Can this buffer be used with semi-micro or micro pH electrodes?
Yes, this pH 5.00 buffer solution is compatible with standard, semi-micro, and micro pH electrodes, provided the electrode is properly calibrated and maintained. The liquid form ensures adequate contact with the sensor surface regardless of electrode size.
3. Is this buffer solution sterile or autoclavable?
This product is not supplied sterile and is not autoclavable, as high-temperature sterilization may alter the pH value. For applications requiring sterility, use aseptic techniques or filter sterilization with a 0.22 µm membrane under laminar flow.
4. How does NIST traceability benefit my calibration process?
NIST traceability ensures the buffer’s pH value is directly linked to primary standard reference materials, providing documented accuracy and reliability. This traceability is critical for compliance with ISO 17025, GLP, or GMP standards, where measurement uncertainty must be minimized and auditable.
5. What alternatives are available if I need a buffer with a different pH?
For broader pH range requirements, consider NIST-traceable buffers at pH 4.00, 7.00, or 10.00, also available in Specpure® grade. These alternatives maintain the same precision and traceability standards, allowing seamless integration into multi-point calibration protocols.
