![]() Silicone viscosity standards are not recommended for glass capillary viscometers (including vacuum viscometers), metal cup-type viscometers (such as ISO, Zahn, Ford and Shell cups), or any other viscometers providing kinematic viscosity-CANNON hydrocardon-based oil standards should be used for these types of viscometers.ĬANNON silicone viscosity standards are specifically formulated for use with rotational viscometers. CONTAINER SIZESĪll standards are shipped with an expiration date between 18 and 24 months from the date the order is processed.ĬANNON silicone viscosity standards are intended for use with rotational viscometers only. For additional details see Quality Certifications. CANNON performs calibrations using the master viscometer procedures detailed in ASTM D2162. ISO/IEC 17025 accreditation further demonstrates our technical competence in calibration including the determination of kinematic and dynamic viscosity of standards as well as viscosity certification of customer samples. CANNON Instrument Company holds ISO 17025 and Guide 34 accreditation (certificates 1262.02) from A2LA for competency in manufacture and certification of reference materials. national standards for certified liquid viscosity reference standards in 2003.Īll CANNON viscosity standards are traceable to a NIST calibration and prepared in our ISO 9001-registered, A2LA-accredited laboratory. This is why the National Institute of Standards and Technology (NIST) delegated responsibility to CANNON for U.S. Use of high quality standards and reference materials ensures test reliability and accuracy. Our standards calibrate and verify the performance of glass capillary viscometers, automated kinematic viscometers, rotational viscometers, falling ball viscometers, cup viscometers, tapered bearing simulator viscometers and flash point testers. Hungry for some science, but you don’t have time for a full-course research plate? Then check out USGS Science Snippets, our snack-sized science series that focuses on the fun, weird, and fascinating stories of USGS science.CANNON Instrument Company has been a leader in viscosity measurement since 1938, providing a broad range of viscosity standards and flash point reference materials to customers across various industries. Next EarthWord: Our next word sounds like what the British might call an outhouse. In determining what types of oil and gas are present, as well as how much is technically recoverable, viscosity of the petroleum is very important. Finally, viscosity is also a factor in our oil and gas research.Next, in our water studies, the viscosity of both surface water and groundwater can affect all manner of things, from how fast a river flows to how deep groundwater can percolate.First, when studying the flow of lava and its effects, the viscosity of the flow can affect the speed at which the lava travels. Viscosity factors into USGS science in a number of ways.It affects how these liquids behave, and can change depending on such factors as temperature and pressure. Viscosity is an important measurement in most studies of fluids, from water to oil.Use/Significance in the Earth Science Community: Speaking of molasses, viscosity comes from the Latin viscosus, which meant “sticky.”.Ever heard the phrase “slower than molasses?” Viscosity is what it’s referring to, since molasses has a fairly high viscosity and so doesn’t flow very quickly. Viscosity refers to a fluid’s resistance to flowing.As the lava cools on the surface, its viscosity increases and the flow slows down. A USGS geologist collects a molten lava sample during a December 2015 lava flow from Puʻu ʻŌʻō.
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