Description
Specifications Table
Product Name – Viscosity Standards (cSt) – 320 at 20°C, 230 at 25°C, 110 at 37.78°C, 98 at 40°C, 61 at 50°C
Quantity/Pack Size – 500 ml
Form – Liquid
Grade – Analytical/Reference Standard
Application – Viscometer calibration, quality control, research, and industrial process validation
Product Overview
Viscosity standards (cSt) are meticulously formulated reference fluids designed to deliver precise and repeatable viscosity measurements across a range of temperatures. Calibrated to exact centistoke (cSt) values—320 at 20°C, 230 at 25°C, 110 at 37.78°C, 98 at 40°C, and 61 at 50°C—these standards ensure the accuracy of rotational, capillary, and other viscometers in laboratory and industrial settings. Manufactured under stringent quality controls, they adhere to international traceability protocols, providing confidence in instrumentation performance. The high-purity composition minimizes batch-to-batch variability, while the stable shelf life guarantees long-term reliability. Each batch is accompanied by a Certificate of Analysis (CoA) detailing viscosity values, uncertainty margins, and traceability to NIST or equivalent standards. Ideal for routine calibration, method validation, or troubleshooting viscosity-related discrepancies, these standards eliminate guesswork in fluid dynamics testing. The 500 ml pack size offers an optimal balance between cost-efficiency and usage volume, reducing the need for frequent replenishment. Compatible with most viscometer models, they serve as an indispensable tool for laboratories prioritizing precision in rheological measurements.
FAQs
1. What is the shelf life of these viscosity standards, and how should they be stored?
When stored in a tightly sealed container at room temperature (15–25°C) and protected from direct sunlight or moisture, these standards retain their certified viscosity values for up to 24 months from the date of manufacture. Avoid exposure to extreme temperatures or contaminants to prevent degradation.
2. Are these standards traceable to national or international reference materials?
Yes, each batch is traceable to primary viscosity standards such as NIST (National Institute of Standards and Technology) or equivalent international bodies. The Certificate of Analysis provided with the product includes traceability details and measurement uncertainties.
3. Can these viscosity standards be used with both capillary and rotational viscometers?
The standards are compatible with most viscometer types, including capillary (Ubbelohde, Cannon-Fenske), rotational (Brookfield, DV series), and other viscosity measurement systems. Always verify the viscometer’s operating range matches the standard’s certified viscosity values.
4. What is the typical uncertainty range for these viscosity standards?
The uncertainty for these standards is typically within ±0.5% of the certified value, as documented in the Certificate of Analysis. This margin accounts for measurement precision, temperature control, and traceability to reference materials.
5. Do these standards require any special handling precautions during use?
While non-hazardous, these standards should be handled with standard laboratory precautions. Avoid skin or eye contact, and use in a well-ventilated area. Clean spills immediately with an absorbent material, and dispose of waste according to local regulations for non-hazardous liquids.
