Description
Specifications Table
Product Name – Viscosity Standards (cSt) – 980 at 20°C, 710 at 25°C, 340 at 37.78°C, 310 at 40°C, 190 at 50°C
Quantity/Pack Size – 500 ml
Form – Liquid
Grade – Certified Reference Material
Application – Viscometer calibration, quality control, instrument validation
Product Overview
Our viscosity standards are meticulously formulated to provide precise reference values for viscometer calibration across a wide temperature range. Each standard is certified to deliver consistent kinematic viscosity measurements at critical temperatures: 980 cSt at 20°C, 710 cSt at 25°C, 340 cSt at 37.78°C, 310 cSt at 40°C, and 190 cSt at 50°C. These standards are manufactured under stringent quality controls to ensure traceability to international measurement systems, making them ideal for laboratories requiring NIST-traceable or ISO-compliant calibration fluids. The high-purity composition minimizes batch-to-batch variation, while the stable formulation resists degradation over time, maintaining accuracy throughout its shelf life. Packaged in 500 ml amber glass bottles to prevent photodegradation, these standards are compatible with capillary, rotational, and other viscometer types. Whether for routine instrument verification or high-precision research applications, these viscosity standards eliminate measurement uncertainty, ensuring your equipment performs at peak accuracy. The comprehensive certification documentation provided with each bottle includes viscosity values, uncertainty statements, and expiration dates for complete quality assurance.
FAQs
1. What is the shelf life of these viscosity standards?
The shelf life is typically 24 months from the date of manufacture when stored unopened in original packaging at controlled room temperature. Always check the expiration date on the certificate of analysis.
2. Can these standards be used with digital viscometers?
Yes, these viscosity standards are compatible with all viscometer types, including digital rotational and capillary viscometers, provided the instrument’s measurement range covers the standard’s viscosity value.
3. How should these standards be stored to maintain accuracy?
Store the unopened bottles upright in a cool, dry place away from direct sunlight and heat sources. Once opened, reseal tightly and use within 6 months for optimal accuracy.
4. Are these standards traceable to international measurement systems?
Each batch is traceable to NIST (National Institute of Standards and Technology) reference materials, with full documentation provided in the certificate of analysis included with your order.
5. What’s the difference between kinematic and dynamic viscosity?
Kinematic viscosity (measured in cSt) is the ratio of dynamic viscosity to fluid density, while dynamic viscosity (measured in cP) represents the fluid’s internal resistance to flow. These standards provide kinematic viscosity values.
