Description
Specifications Table
Product Name – Buffer solution, pH 10 AVS TITRINORM® buffers in 30 ml sachets
Quantity/Pack Size – 30 × 30 ml
Form – Liquid (pre-measured sachets)
Grade – Analytical (NIST-traceable)
Application – pH meter calibration, electrochemistry, quality control
Product Overview
This AVS TITRINORM® pH 10 buffer solution delivers laboratory-grade precision for critical pH measurements, packaged in convenient 30 ml single-use sachets to eliminate contamination risks. Formulated with ultra-pure reagents and certified against NIST standards, it ensures ±0.01 pH accuracy at 25°C, making it the preferred choice for research labs, educational institutions, and industrial QC applications where reproducibility is non-negotiable. The sachet format preserves buffer integrity by preventing atmospheric CO₂ absorption that can alter pH values in opened bottles, while the color-coded labeling system enables quick identification during multi-point calibration procedures. Each batch undergoes rigorous testing for ionic strength consistency (0.1 mol/L) and microbial contamination, with stability guaranteed for 24 months when stored unopened at room temperature. The solution’s low temperature coefficient (ΔpH/°C = -0.028) minimizes thermal drift during extended calibration sessions, and its chloride-free composition prevents electrode poisoning in sensitive applications. Compatible with all major pH electrode types including glass, ISFET, and combination electrodes, this buffer solution meets ISO 17025, USP, and EP pharmacopeia requirements for analytical laboratories.
FAQs
1. What is the exact pH value at different temperatures for this buffer solution?
The pH 10 buffer has a temperature coefficient of -0.028 pH/°C. At 20°C it measures 10.012, at 25°C it’s 10.000 (nominal), and at 30°C it reads 9.988. Always allow the solution to equilibrate to your working temperature before calibration.
2. Can this buffer be used with older pH meters that require high-ion buffers?
Yes, the solution maintains an ionic strength of 0.1 mol/L, making it compatible with both modern and legacy pH measurement systems that require stable ionic environments for accurate readings.
3. How does the sachet packaging affect the buffer’s shelf life compared to bottles?
The individual sachets extend usable shelf life by preventing repeated exposure to atmospheric CO₂ that gradually lowers pH in opened bottles. Unopened sachets maintain specification for 24 months, while opened bottles typically degrade within 3-6 months.
4. What’s the recommended procedure for disposing of used buffer sachets?
Rinse the empty sachets with deionized water to neutralize residual buffer, then dispose of as non-hazardous laboratory waste according to your institution’s chemical waste protocols. The diluted rinse water can be safely discharged to drain.
5. Does this buffer contain any preservatives that might interfere with sensitive analyses?
The formulation uses trace amounts of sodium azide (≤0.05%) as a microbiostatic agent, which doesn’t interfere with most electrochemical measurements but may require consideration in microbial culture applications or azide-sensitive assays.
