Description
Specifications Table
Product Name – Density standard, 1.2486 g/ml at 20°C
Quantity/Pack Size – 100 ml
Form – Liquid
Grade – Analytical/Reference Standard
Application – Calibration of density-measuring instruments, quality control, and validation
Product Overview
The density standard with a certified value of 1.2486 g/ml at 20°C is a high-precision reference fluid designed for the calibration and verification of densitometers, digital density meters, pycnometers, and hydrometers. Manufactured under stringent quality controls, this standard ensures traceability to international metrological standards, providing consistent and reliable measurements for laboratory applications. Its formulation guarantees long-term stability, minimizing evaporation or compositional changes over time, which is critical for maintaining accuracy in repetitive testing environments. The fluid is packaged in a sealed, amber glass bottle to prevent photodegradation and contamination, preserving its integrity during storage and handling. Its viscosity and surface tension properties are optimized to mimic real-world sample behaviors, reducing systematic errors during instrument calibration. Compatible with most modern density-measuring devices, this standard eliminates the need for frequent recalibration, enhancing workflow efficiency in research, industrial, and educational laboratories. The included certificate of analysis documents the exact density value, uncertainty limits, and expiration date, ensuring compliance with ISO and GLP standards. Whether used for routine equipment maintenance or critical validation protocols, this density standard delivers unmatched precision for demanding analytical tasks.
FAQs
1. What is the shelf life of this density standard, and how should it be stored?
The shelf life is typically 24 months from the date of manufacture when stored unopened in its original packaging. Store it in a cool, dry place away from direct sunlight at temperatures between 15°C to 25°C. Avoid freezing or exposure to temperature fluctuations.
2. Is this density standard compatible with automatic densitometers?
Yes, it is fully compatible with most automatic and digital densitometers, including those from major brands like Anton Paar, Mettler Toledo, and Rudolph. Always verify instrument-specific requirements for sample volume and viscosity compatibility.
3. Can this standard be used for calibrating hydrometers used in petroleum testing?
While primarily designed for general lab use, its certified density value makes it suitable for hydrometer calibration in petroleum testing, provided the temperature correction factors align with ASTM or IP standards for your specific application.
4. What alternatives are available if I need a different density value?
Alternatives include density standards with values ranging from 0.690 g/ml to 2.000 g/ml, available in similar pack sizes. For custom densities, certified reference materials (CRMs) can be sourced with tailored specifications upon request.
5. Does this standard require temperature equilibration before use?
Yes, allow the bottle to equilibrate to the calibration temperature (20°C ± 0.1°C) for at least 2 hours before use. Temperature variations can significantly affect density measurements, so use a controlled water bath or dry block for precise thermal stabilization.
