![]() ![]() These materials change the interface between the cup surface and the test material and therefore change the cup calibration. CAUTION: Silicone fluids should not be used to calibrate viscosity cups.Experience has shown, however, that in the absence of contamination, the standards do not materially deteriorate over an extended period of time. One of the requirements under such certification is the replacement of the viscosity standard on or before the termination date. The viscosity oils are used by the producer of Gardco viscosity cups not only to calibrate the cups but also to certify such calibration under ANSI/NCSL Z540 or ISO/IEC 17025, ISO 9001, as applicable, and in conformance with ISO 9000, which is available as an extra cost of service.If there is valid reason to question the original value of the viscosity standard, it should be replaced. Immediately following use, the standard should be returned to its labeled container and capped.Included in this care should be making sure that any container used to receive the viscosity oil, as well as the cup to be checked, the thermometer and any other stirring device, be absolutely free of contaminants. Therefore, there is no easy means of checking the viscosity to ensure that it remains at the value listed on the label except through very careful use of the standard to ensure its integrity. This is a much closer tolerance than viscosity measuring devices normally available to users of viscosity cups. They are accurate to within 0.25% of the label value at specified temperature.CANNON has been granted ISO 9002 registration for the manufacture and certification of viscosity standards.s (centipoise) for water at 20☌ (68☏).Viscosities for all standards sold by CANNON are based on the National Institute of Standards and Technology (NIST) value of 1.0016 mPa Gardner Company are produced in accordance with: ISO/IEC 17025, ISO 17025 and Guide 34 and ISO 9001. These viscosity oils prepared expressly by the Cannon Instrument Company for the Paul N.A Material Safety Data Sheet (M.S.D.S.) accompanies each bottle of viscosity oil. ![]() *With the exception of the Parlin Cups whose Viscosity in Centistokes is measured at 23C in accordance with ASTM specification. Gardner Co." by the Cannon Instrument Company and that data on the standard is traceable to the National Institute of Standards and Technology (NIST). A label on each bottle gives the Viscosity Oil Name, Lot No., Termination Date, Viscosity in Centistokes at 25.00C (77.00F)* and a statement that the standard "is prepared expressly for Paul N.Net content of each bottle is 0.47 Liter (1 Pint) All Cannon Viscosity Oils are packaged in sealed, dark glass bottles.Oils with Long Form Certification include data points.All oils come certified and traceable to NIST this document is the Certificate of Analysis, the Long Form certificate is an “Additional document” that supplements the traceability information that is described on the Certificate of Analysis. ![]()
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