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The Company may revise and update these Terms of Use at any time without notice by posting the amended terms to the Web Site. If you do not wish to agree to these Terms of Use, do not access or use any part of the Web Site. By accessing or using the Web Site, you agree that you have read, understand and agree to be bound by these Terms of Use, as amended from time to time, as well as the Company Privacy Policy, which is hereby incorporated into these Terms of Use. Please read these Terms of Use carefully before accessing or using any part of the Web Site. All users of the Web Site are subject to the following website terms and conditions of use (these “Terms of Use”). If you are accessing the Web Site from outside the United States, Canada, or Puerto Rico, please see the appropriate international website, available at for applicable terms and conditions.

These terms and conditions of use are applicable to the United States, Canada and Puerto Rico websites (“collectively the Web Site”) operated by VWR (the “Company”). GARDCO is the only producer authorized to use the Zahn name and has added the S90 designation to identify the improved viscosity cups manufactured on new state-of-the-art equipment to ensure optimum quality and uniformity.Thank you for visiting our site. S90 Zahn cups as the most reliable viscosity cups to measure and control the consistency of ceramic shell slurries S90 Zahn cups, with the above advantages, cannot be confused with other, lesser defined cups as they are produced, calibrated and sold only by Paul N. S90 Zahn cups are an improved version of the time honored Zahn Signature viscosity cupsĬup flow characteristics are defined by a mathematical formula and standard “G” series oilsįurnished with each S90 Zahn cup is a conversion table relating cup efflux time to the nearest tenth of a second to viscosity in centistokes Instrumentation commonly used for measuring viscosity (viscosity is a quick and simple measurement that describes a fluid’s resistance to flow)Īll stainless steel calibrated viscosity cup
