Description
Specifications Table
Product Name – Buffer solution, pH 4.01 (±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
Product Overview
This high-precision pH 4.01 (±0.01 @ 25°C) buffer solution is a NIST-traceable reference standard designed for accurate pH meter calibration and analytical applications. The colorless, Specpure® grade formulation ensures consistency and reliability in laboratory environments, meeting stringent quality control requirements. Engineered for stability, this buffer solution maintains its specified pH value under standard conditions, providing a dependable benchmark for routine and critical measurements. The 550 ML pack size offers ample volume for frequent use while minimizing waste. Ideal for environments where precision is non-negotiable, this buffer solution adheres to international standards, ensuring compatibility with a wide range of laboratory instruments. Its non-reactive composition prevents interference with sensitive assays, making it a versatile choice for diverse calibration needs. The solution is packaged to preserve integrity, with tamper-evident seals and clear labeling for easy identification and traceability.
FAQs
1. How stable is this pH 4.01 buffer solution over time?
The solution remains stable for up to 12 months when stored unopened at room temperature, as per NIST guidelines. Exposure to extreme temperatures or contamination may reduce shelf life.
2. Can this buffer be used with all pH meters?
Yes, it is compatible with most standard pH meters, including benchtop and portable models. Always verify electrode compatibility with the manufacturer’s recommendations.
3. What alternatives exist for pH 4.00 calibration?
Alternatives include pH 4.00 buffer solutions from other certified brands, though NIST traceability ensures higher accuracy. Non-NIST buffers may vary slightly in precision.
4. How should this buffer be stored after opening?
After opening, recap tightly and store at 15–25°C, away from direct sunlight. Use within 3 months to maintain accuracy, as prolonged exposure to air may alter pH.
5. Is this buffer suitable for food or pharmaceutical testing?
While it meets general lab standards, verify compliance with specific industry regulations (e.g., USP, EP) for food/pharma applications, as additional certifications may be required.
