Description
Specifications Table
Product Name – BUFFER STANDARD SOLUTION pH 4.0 at 20°C Quantity/Pack Size – 500 ml, 1000 ml Form – Liquid Grade – Analytical Application – pH meter calibration, lab standardization
Product Overview
This pH 4.0 buffer solution is a high-precision calibration standard designed for laboratory applications where accurate pH measurements are critical. Formulated to maintain a stable pH of 4.0 at 20°C, it ensures reliable performance for routine calibration of pH meters, electrodes, and other analytical instruments. The solution is prepared using high-purity reagents and deionized water, adhering to strict quality control standards to minimize contamination and ensure consistency. Its analytical-grade purity makes it suitable for research, quality control, and educational settings where precision is non-negotiable. The ready-to-use liquid form eliminates the need for dilution or preparation, saving time and reducing the risk of errors. With a long shelf life when stored properly, this buffer solution provides a cost-effective and dependable reference for maintaining instrument accuracy. Whether used in academic labs, industrial testing, or environmental monitoring, this pH 4.0 buffer delivers the stability and reproducibility required for confident measurements.
FAQs
1. What is the shelf life of this pH 4.0 buffer solution?
The solution remains stable for up to 24 months from the date of manufacture when stored in a tightly sealed container at room temperature, away from direct sunlight.
2. Can this buffer be used for calibrating all types of pH meters?
Yes, this pH 4.0 buffer is compatible with most standard pH meters and electrodes, provided they are designed for aqueous solutions and operate within the typical pH range of 0-14.
3. How should I store the buffer solution to maintain its accuracy?
Store the solution in its original container at temperatures between 15°C and 25°C. Avoid exposure to extreme temperatures, moisture, or contaminants to preserve its calibration properties.
4. Is this buffer solution traceable to NIST or other standards?
The solution is manufactured under controlled conditions to meet analytical-grade specifications, though direct NIST traceability may vary by batch. Check the certificate of analysis for specific traceability details.
5. What precautions should I take while handling this buffer?
While non-hazardous, it is recommended to wear standard lab protective gear, such as gloves and goggles, to prevent contamination. Avoid skin or eye contact, and rinse thoroughly with water if accidental exposure occurs.
