Description
Specifications Table
Product Name – Refractive index standard at 20 °C, stabilized sucrose
Quantity/Pack Size – 15 ml
Form – Liquid
Grade – Analytical
Application – Refractometer calibration, optical instrument verification
Product Overview
This stabilized sucrose refractive index standard is specifically formulated to deliver precise calibration at 20°C, eliminating variability caused by temperature fluctuations or solution instability. The analytical-grade liquid undergoes rigorous quality control to ensure a uniform refractive index, making it ideal for verifying the accuracy of refractometers and other optical instruments. Unlike conventional sucrose solutions, this standard incorporates stabilizers that resist evaporation and microbial growth, extending its usable life. The 15 ml packaging balances practicality with efficiency, reducing exposure to contaminants while providing adequate volume for multiple calibrations. Its clarity and lack of particulate matter prevent scattering or absorption issues during optical measurements. The standard is compatible with a wide range of refractometer models, from portable field units to high-precision laboratory instruments. By using this solution, laboratories can achieve traceable, repeatable results that comply with ISO and ASTM standards for optical testing.
FAQs
1. Does this standard require temperature equilibration before use?
Yes, allow the bottle to reach 20°C in a temperature-controlled environment for at least 30 minutes before calibration to ensure accuracy.
2. Can I dilute this standard for lower refractive index measurements?
Dilution is not recommended, as it alters the stabilized formulation and compromises the certified refractive index value.
3. What materials are used in the bottle and cap?
The standard is packaged in an amber glass bottle with a PTFE-lined polypropylene cap to prevent chemical interactions and contamination.
4. How often should I recalibrate my refractometer with this standard?
Recalibration frequency depends on usage, but monthly verification is recommended for critical applications to detect instrument drift.
5. Is this standard suitable for food or pharmaceutical testing?
While the sucrose base is food-grade, this product is designed for laboratory calibration and not intended for direct contact with consumables.
