Hand held viscosity meter for oil11/7/2023 Measures necessary to ensure that the Subscriber's IP addresses are not used toĪccess the journals other than by authorized Users.ĪSTM International grants to the Subscriber and Authorized The Subscriber will be responsible for all access control and security This ASTM Document may not otherwise be sold or resold, rented, leased, lent or The single hard copy print may only be distributed to otherĮmployees for their internal use within your organization it may not be copied. That is, the electronic file cannot be e mailed, downloaded to disk, copied to another hardĭrive, or otherwise shared. ![]() In addition, the electronic file may not be distributed elsewhere over computer networks or Neither the electronic file nor the single hard copy print may be reproduced in any way. The right to download an electronic file of this ASTM Document for temporary storage on oneĬomputer for purposes of viewing, and/or printing one copy of the ASTM document You may not remove or obscure the copyright notice or other notices contained in the ASTMĪSTM grants you a limited, non-transferable license as follows: This is not a sale all right, title and interest in the ASTM Document (in both electronic file You (Licensee) have no ownership or other rights in the ASTM Document. This document is copyrighted by the ASTM International (ASTM), 100īarr Harbor Drive, West Conshohocken, PA 19428-2959 USA.Īll rights reserved. Please click here to view License Agreement for Educational Institutions. If you do not agree to the terms of this License Agreement, promptly exit this page This License Agreement, that you understand it and that you agree to be bound by its IMPORTANT-READ THESE TERMS CAREFULLY BEFORE DOWNLOADING THIS DOCUMENT.īy downloading the ASTM Document you are entering into a contract, and acknowledge that These portable field viscosity measurements not only extend the engine life and usage time of diesel engine oils but also allow for further elucidation of diesel contamination to engine oils. ![]() The viscosity measurements with an automatic and inexpensive manual portable field FNV (PFV) are better than 0.75% and 1.29% accuracy, respectively. Because of the simplicity of the FNV principle, automatic or manual portable field FNV (PFV) is made available for lubricants and greases even under in-service or field conditions without any instrument calibration by using the constant gravity. The field viscosity measurements were made using the portable field falling needle viscometer (FNV) while changing both the diesel concentration from 2% to 10% and the temperature from 15 to 40 ☌. This report assesses the accuracy and usability of a portable technique to determine viscosity changes of engine oil by diesel contamination in internal combustion engines under in-service or field conditions. Current practice requires samples to be sent to the laboratory with added reporting time and analysis cost. Although increased engine protection and extended lifetime can be achieved with viscosity measurement of engine oil, inexpensive and accurate field measurements with a small sample amount have been proven to be difficult. It can also determine the extent of contamination of one liquid by another such as oil contamination by fuel for the diesel engines of heavy equipment or industrial engines. Among other applications, this phenomenon has been used to detect composition changes in anti/deicing fluids for preventing the icing of airplane surfaces in cold or snowy-weather environments, or both. ![]() Dynamic viscosity changes are most sensitive to changes in liquid composition. A simple and accurate way of avoiding costly engine damage due to diesel fuel contamination is a necessity for owners and operators of heavy-duty diesel engines or industrial engines, or both.
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