Description
Specifications Table
Product Name – Viscosity Standard (cSt)
Quantity/Pack Size – 500 ml
Form – Liquid
Grade – Analytical/Calibration Grade
Application – Viscometer calibration, rheology testing, instrument validation
Viscosity Values – 6.7 cSt (20°C), 5.8 cSt (25°C), 4.2 cSt (37.78°C), 4 cSt (40°C), 3.2 cSt (50°C)
Certification – Traceable to NIST/ISO standards
Shelf Life – 24 months (unopened)
Storage Conditions – 15–25°C, away from direct sunlight
Compatibility – Glass, stainless steel, PTFE-coated viscometers
Product Overview
This high-precision viscosity standard is engineered for laboratories requiring exact viscosity measurements across a temperature range of 20°C to 50°C. The fluid delivers certified kinematic viscosity values—6.7 cSt at 20°C, 5.8 cSt at 25°C, 4.2 cSt at 37.78°C, 4 cSt at 40°C, and 3.2 cSt at 50°C—ensuring traceability to NIST and ISO standards for uncompromised accuracy. Formulated with analytical-grade purity, it eliminates batch-to-batch variability, making it indispensable for calibrating rotational, capillary, and process viscometers. The liquid’s stability is maintained through rigorous quality control, with a shelf life of 24 months when stored under recommended conditions (15–25°C, sealed). Its compatibility with glass, stainless steel, and PTFE-coated viscometers minimizes cross-contamination risks, while the 500 ml pack size balances cost-efficiency with sufficient volume for repeated calibrations. The standard’s low evaporation rate and resistance to thermal degradation further enhance its reliability in long-term lab applications, reducing recalibration frequency and operational downtime.
FAQs
1. What is the temperature range for accurate viscosity measurements with this standard?
The standard provides certified viscosity values between 20°C and 50°C, with specific cSt readings at 20°C, 25°C, 37.78°C, 40°C, and 50°C. Measurements outside this range may require temperature correction.
2. Can this viscosity standard be used with digital and analog viscometers?
Yes, it is compatible with both digital and analog viscometers, including rotational, capillary, and process types, provided the instrument’s material (e.g., glass, stainless steel) is chemically inert to the fluid.
3. How does this standard compare to silicone-based viscosity standards?
Unlike silicone-based standards, this fluid offers superior thermal stability and lower evaporation rates, reducing the need for frequent recalibration. It is also less prone to shear thinning, ensuring consistent readings across repeated tests.
4. What precautions should be taken during storage to maintain accuracy?
Store the unopened bottle at 15–25°C, away from direct sunlight and moisture. Once opened, reseal tightly and use within 6 months to prevent contamination or viscosity drift due to solvent loss.
5. Is this standard traceable to international metrology institutes?
The viscosity values are traceable to NIST (National Institute of Standards and Technology) and ISO guidelines, with certification documentation provided for audit compliance.
