Description
Viscosity standard N250 is a ROTI®Calipure reference liquid with a stated viscosity of 790 cSt at 20 °C for higher-range viscosity calibration and determination. Physical data include a density of 0,82 to 0,83 g/cm³, a flash point of 219 to 257 °C and a boiling point of 217 to 419 °C, supporting safe handling assessments and instrument setup. The product is packed as 500 ml in glass, suitable for repeated use in analytical, QC and physical-testing laboratories. This N250 standard from manufacturer Carl ROTH addresses applications that require a more viscous calibration medium than lower N-series grades. Defined viscosity at 20 °C enables consistent comparison between instruments, operators and sites. Typical uses include verification of viscometers, method development for viscous fluids and routine performance checks in industrial and research settings. The glass bottle format aids controlled sampling and storage during calibration campaigns, while the documented density, flash-point and boiling-point ranges help laboratories integrate the standard into existing safety and quality systems.
This article is part of Viscometers, in Density & viscosity measurement.
Key features
- Kinematic viscosity (20 °C): 710-870 cSt
- Dynamic viscosity (20 °C): 620-760 cP
- Density (20 °C): 0.756-0.924 g/ml
- Pack size: 500 ml glass
- Density: 0,82 to 0,83 g/cm³
- Flash point: 219 to 257 °C
- Boiling point: 217 to 419 °C
- Grade: ROTI®Calipure
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Viscosity standard N250, ROTI®Calipure, 790 cSt (20 °C), 500 ml, glass
What is this article?
Viscosity standard N250, ROTI®Calipure, 790 cSt (20 °C), 500 ml, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Viscometers, inside Density & viscosity measurement, in Lab instruments.
A capillary viscometer times the flow of a liquid through a tube. A rotational viscometer twists a spindle in the liquid. Both need a stated temperature. Kinematic and dynamic viscosity are different numbers. The capillary size has to put the flow time in the range the method allows.
Density is mass divided by volume. A hydrometer floats at a depth that depends on the density of the liquid. A pycnometer is a vessel of known volume that is weighed full. Viscosity is the resistance to flow. A capillary viscometer times how long a volume takes to fall through a tube. Both measurements need a stated temperature, because liquids change density and viscosity as they warm. The units trace to the BIPM and to NIST.
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Shelves beside this one are Hydrometers and Density meters & pycnometers.
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