Astm d341 viscosity equation Inform now! ASTM D 341 Janvier 2003 www. In addition, the viscosity of many petroleum fuels is important for the estimation of optimum storage, handling, and operational conditions. The TCV measurement can be obtained by using ASTM D341 equation or by a customisable table in order to match specific product behavior. 1 This practice covers kinematic viscosity-temperature equations and charts (see Let’s perform a Viscosity Index (VI) calculation using the provided formula and some sample data. Scope 1. ASTM-D341 model The ASTM-D341 standard provides Kinematic Viscosity vs Temperature charts, which can help determine the Kinematic Viscosity of a petroleum product or liquid hydrocarbon at any temperature within a limited range, by providing just two data points which are the kinematic viscosities of the fluid at two known temperatures. It is a suitable tool for determining the kinematic viscosity of a petroleum oil or liquid hydrocarbon at ASTM D2270 – Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 °C and 100 °C Significance and Use 4. 5. ASTM D341 Standard Practice for Viscosity-Temperature Equations and Graphs for Liquid Petroleum or Hydrocarbon Products EUROLAB laboratory provides testing and compliance services within the scope of ASTM D341 standard. These are necessary when calculations May 13, 2005 · I need to quantify the change in viscosity in diesel fuel with temperature. 1 is not useful for inter-calculations of kinematic viscosity and temperature over the full chart kinematic viscos- ity range. Given: Kinematic viscosity of the oil at 40°C (104°F): 100 cSt (centistokes) Kinematic viscosity of the oil at 100°C (212°F): 12 cSt Step 1: Look up the values of L and H from the ASTM D2270 tables or equations for the given viscosities. Origina ly a proved in 2005. If you know the viscosity of a particular type of oil at two temperatures (like 40 and 100°C) , it is possible to calculate it at a different temperature (ASTM D341). Blend density can be estimated using our blending tool. log10( ISO 2909 / ASTM D2270-226, calculation, calculator the kinematic viscosity values, depends from temperature, calculated by the formulas specified in ASTM D341 – (‘Standard Practice for Viscosity-Temperature Charts for Liquid Petroleum Products’); the Viscosity Index (VI) by the formulas specified in ASTM D2270 (`Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 and 100°C 1`) or in ISO 2909 (`Standard May 1, 2020 · ASTM D341-20e1 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products standard by ASTM International , 05/01/2020 View all product details Track It Mar 4, 2011 · Also,there is a huge difference between the viscosity calculations based on Va and Vb compared to ASTM D341. Jul 3, 2025 · ASTM D2270 is related to tests, including ASTM D341 for viscosity-temperature equations for liquid petroleum, ASTM D445 for the Kinematic Viscosity of Transparent Liquids, and ASTM D7042 for dynamic viscosity using the Stabinger viscometer. 2 The charts are designed to permit petroleum oil kinematic viscosity-temperature data to plot as a straight line. log10 (v+0. 58cst at 40degC and 15cst at 100degC. 1, 2016. ASTM-D341 requires two ASTM D341 – Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products Description: Abstract This test method details the standard procedure for plotting viscosity-temperature charts that ascertain the kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, provided that the kinematic Walther equation Viscosity—Temperature. 7)= A-B. 2. ASTM International Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products ASTM D341-20 Nov 10, 2025 · ASTM D341-17的标准全文信息,1. It is a suitable tool for determining the kinematic viscosity of a petroleum oil or liquid hydrocarbon at ASTM D341 Standard Practice for Viscosity-Temperature Equations and Graphs for Liquid Petroleum or Hydrocarbon Products EUROLAB laboratory provides testing and compliance services within the scope of ASTM D341 standard. May 1, 2020 · ASTM D341-20 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products This function assumes a linear relationship between temperature and the double logarithm of viscosity and is based on ASTM Method D341. May 1, 2020 · ASTM D341-20e1 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products May 7, 2004 · However, for hydrocarbons, the version found in ASTM D341 is very well established and may be preferred. A superscript epsilon Dec 1, 2011 · Seeking for a time-optimization of the ASTM D341 method, Twu and Bulls [11] developed equation (18) which requires absolute temperature and constants for a particular blend obtained from viscosity experimental measurements. 50 The Walther equation is also the basis of method ASTM the kinematic viscosity values, depends from temperature, calculated by the formulas specified in ASTM D341 – (‘Standard Practice for Viscosity-Temperature Charts for Liquid Petroleum Products’); the Viscosity Index (VI) by the formulas specified in ASTM D2270 (`Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 and 100°C 1`) or in ISO 2909 (`Standard Aug 20, 2013 · Although an incorrect derivation of the above equation, the ASTM viscosity-temperature chart ewhere the ordinate is log 10 log 10 (ν cS +0. The user enters two viscosity points at two known temperatures and a curve is generated. Table 1 given in this practice applies to petroleum products with kinematic viscosities between 2 mm 2 /s and 70 mm 2 /s at 100 °C. Includes procedures, equations, and tables. The document outlines the American National Standard D 341 for viscosity-temperature charts for liquid petroleum products, providing a method to determine kinematic viscosity at various temperatures. e. 19–27. A superscript epsilon ( ́) indicates an editorial change since the May 13, 2024 · 1. 1-3), which are a convenient means to ascertain the kinematic viscosity of a petroleum oil or liquid May 1, 2020 · ASTM D341-20 REDLINE Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products Seventeen mixing rules reported in the literature used for predicting kinematic viscosity of petroleum and its fractions were examined for accuracy by comparing the estimated values with the experimental viscosities of four crude oils (21. ASTM has available “Standard Viscosity-Temperature Charts” which give a straight line relation for any oil represented by Equation 1. 6) and the abscissa is log 10 T, is quite successful when used on oils (mineral and synthetic) under "normal" conditions. Thus, the accurate This document provides instructions for calculating the blend percentage of oils needed to produce a blended oil with a target viscosity. The charts here presented provide a significant improvement in linearity over the charts previously available under Method D341–43. g. The equation relates kinematic viscosity, temperature, and constants A and B. Published February 2016. Extrapolation is usually done with the help of online calculators and Apps for your Dec 31, 2010 · AbstractThis test method details the standard procedure for plotting viscosity-temperature charts that ascertain the kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, provided that the kinematic viscos ASTM D341-20 Red Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products (Standard + Redline PDF Bundle) Jun 11, 2025 · ASTM D341-20 液态石油或碳氢化合物产品的粘度-温度方程和图表的标准实施规程 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products ASTM D341-20 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products ASTM International, 05/01/2020 Publisher: ASTM File Format: PDF $30. 73cst. 1-3 Oct 17, 2025 · ASTM D341-20e1 液态石油或碳氢化合物产品的粘度-温度方程和图表的标准实施规程 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products This calculator allows calculating kinematic viscosity at 40°C from the known VI and kinematic viscosity of the oil at 100°C: The common equation used to calculate the viscosity by interpolation between two reference points is with the Ubbelohde-Walther equation, which is adopted in ASTM D341. 1-3), which are a convenient means to ascertain the kinematic viscosity of a petroleum oil or liquid Apr 10, 2025 · Best prices on ASTM D341-20e1 in PDF and print format. MATHEMATICAL EQUATIONS A 1. This tool is for rough estimates only. 1-3), which are a convenient means to ascertain the kinematic viscosity of a petroleum oil or liquid From each of the viscosity equation windows, VISDISK can use the existing data set to solve the equation for either the temperature required to achieve a given kinematic viscosity or the kinematic viscosity that would be obtained at a specified temperature. 1 This test method covers and specifies a procedure for the concurrent measurement of both the dynamic viscosity, η, and the density, ρ, of liquid petroleum products and crude oils, both transparent and opaque. Jul 9, 2007 · In the ASTM D341 equation you have two constants and so you need two solutions to get a good answer. But there have been warnings that the formula cannot be relied upon. 57] The viscosity of a sample at some temperature can be calculated using the Walther equation if viscosities in centistokes at two other temperatures are available (note this equation holds true only for centistokes measurements). You need the viscosity at two different temperatures to solve for A & B for every sample. Conversely, the kinematic viscosity associated with a stated temperature can be found from the equation determined as in Eq. log 10 (T+273) where [ν] = kinematic viscosity in cSt and T is temperature in [°]C. The 9710 HMI instantaneously and continuously calculates the TCV in real time directly from the viscosity measured in the current process conditions. Here is a simple calculator to interpolate viscosity: Jul 5, 1999 · But if you refer to the ASTM D341 equation of log. Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products Jan 5, 2020 · 1. at these temperatures they agree) 432. ASTM D341-03, 2003, Standard Practice for Viscosity-Temperature Charts for Liquid Petroleum Products, ASTM International, West Conshohocken, PA, 2017, astm. A viscosity-pressure diagram derived from these relational equations depends on the temperature, while a viscosity-temperature diagram depends on the pressure. e. Home Operational Viscosity Calculator Operational Viscosity Calculator Spread the love Wiki A mechanical view of wear – The third body approach Abrasive Wear Adhesion: Definition, Theory and Types Adhesive Wear Adhesive Wear Modelling Methods Analytical Solution of Reynolds Equation: Grubin's Approximation Archard Wear Equation ASTM D341-20e1 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products ASTM International, 05/01/2020 Publisher: ASTM File Format: PDF $25. 31, 15. For example: log10. e within acceptable error. 1 The kinematic viscosity-temperature charts covered by this standard are a convenient means to ascertain the kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, provided that the kinematic viscosities at two temperatures are known. A number in parentheses indicates the year of last reapproval. More convenient equations 4 that agree closely with the chart scale are given below. From the ASTM D2270 tables: For a kinematic viscosity Aug 10, 2020 · 1. Aug 10, 2020 · 1. Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products The viscosity index (VI) allows for comparison of the viscosity behavior of different oils based on temperature. txt) or read online for free. May 15, 2022 · ASTM International, “ASTM D341-03 Standard Test Method for Viscosity-Temperature Charts for Liquid Petroleum Products,” ASTM International, Conshohocken, PA, 2003. 1 and 1-23), which are a convenient means to ascertain the kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, Aug 10, 2020 · Scope 1. See examples given at the end of this page. 2 by solving for Z in the substituted Eq 1, and then subsequently deriving the kinematic viscosity from the value of Z using Eq. Published 1993-03-15 by USDoD (United States D Jun 1, 2014 · Perhaps the best known among viscosity blending equations are the double logarithmic equation of Refutas and the cubic-root equation of Kendall and Monroe. It is a suitable tool for determining the kinematic viscosity of a petroleum oil or liquid hydrocarbon at Best prices on ASTM D341-20e1 in PDF and print format. log (v+0. May 17, 2023 · 2. Feb 6, 2024 · 2. 7 increases according to relations in ASTM D341. We would like to show you a description here but the site won’t allow us. Viscosity Calculation The Walther Equation—ASTM 7 Viscosity Calculation The Walther Equation —ASTM D341 [Pg. This calculation covered by the standard ASTM D341 converts viscosity at different temperatures. SCOPE 1. The new equation and chart can Jan 5, 2020 · Standard ASTM D341-20e1 1. Learn more about how to calculate it! ASTM D341 Standard Practice for Viscosity-Temperature Equations and Graphs for Liquid Petroleum or Hydrocarbon Products EUROLAB laboratory provides testing and compliance services within the scope of ASTM D341 standard. This increases the reliability of extrapolation to higher temperatures. 07 on Flo approved Jan. 2020 - Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products Jun 30, 2017 · ASTM D341-17 - ABSTRACT This test method details the standard procedure for plotting viscosity-temperature charts that ascertain the kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, provided that the kinematic viscosities at two temperatures are known. 00$50. All else is approximation, sometimes good and sometimes bad, depending on how you do it and under what conditions. The EUROLAB laboratory provides testing and compliance services within the scope of ASTM D341 standard. Implements Ubbelohde-Walther equation (ASTM D341) and ASTM D2270 (Viscosity Index) implementation in C++ - sherzodr/libvisc Calculators A ASTM D341 / Viscosity-temperature extrapolation ASTM D2270 / Viscosity index (VI) from 40°C and 100°C ASTM D2270 / Viscosity index (VI) from free temperatures ASTM D88 / Saybolt Furol viscosity ASTM D88 / Saybolt universal viscosity D Dynamic viscosity < > Kinematic viscosity Apr 30, 2020 · ASTM D341-20e1 - ABSTRACT This test method details the standard procedure for plotting viscosity-temperature charts that ascertain the kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, provided that the kinematic viscosities at two temperatures are known. Referenced Documents 2. Oct 1, 2009 · 1. log 10 ( [ν]+0. It outlines collecting kinematic viscosity measurements of the individual oils and blended oil at 40°C and 100°C, then using an ASTM D341 calculation with the logarithmic values to determine the percentage of each oil required in the blend. It is a suitable tool for determining the kinematic viscosity of a petroleum oil or liquid hydrocarbon at Document History ASTM D341 STANDARD PRACTICE FOR VISCOSITY-TEMPERATURE EQUATIONS AND CHARTS FOR LIQUID PETROLEUM OR HYDROCARBON PRODUCTS The document outlines the international standard D341-17 for viscosity-temperature charts used to determine the kinematic viscosity of liquid petroleum products at various temperatures. This can be done if we know the viscosity of the hydrocarbon at two different temperatures. Log (log v) = A – B*log T 1. ASTM D341-20 May 2020Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products Standard practice for calculating viscosity index from kinematic viscosity at 40°C and 100°C. doc / . It emphasizes the charts' improved linearity for accurate extrapolation and provides guidelines for their use, including warnings about temperature ranges and the types of fluids applicable. 1 This practice covers kinematic viscosity-temperature equations and charts Standard Details 1. Dec 29, 2010 · I have now fully automated my A_Harman index, effective VII content, and base-oil viscosity calculator by building in the ASTM D341 viscosity - temperature relation (Walther formula) into the spreadsheet. For lower viscosities, the constant 0. Aug 1, 2020 · 1. 93, ASTM D341 Standard Practice for Viscosity-Temperature Equations and Graphs for Liquid Petroleum or Hydrocarbon Products EUROLAB laboratory provides testing and compliance services within the scope of ASTM D341 standard. 2 This practice does not apply to petroleum products with kinematic viscosities less than 2. The kinematic viscosity, ν, can be obtained by dividing the dynamic viscosity, η, by the density, ρ, obtained at the same test temperature. The charts here presented provide a significant improvement in linearity over the charts previously available under Method D341 –43. The kinematic viscosity data used should Jul 1, 2017 · 1. 2- 5. org Ce document est à usage exclusif et non collectif des clients Normes en ligne. 1 Many petroleum products, and some non-petroleum materials, are used as lubricants and the correct operation of the equipment depends upon the appropriate viscosity of the liquid being used. Once enabled, TCV is highly accurate for Newtonian hydrocarbons and yields a reliable approximation for most other Newtonian and non-Newtonian fluids. Designation: D341 09 Standard Practice for Viscosity-Temperature Charts for Liquid Petroleum Products1 This standard is issued under the fixed designation D341; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. Dec 31, 2013 · In order to pursue Harman index, etc, calculations, the first step is to extrapolate the viscosity data to 150°C. May 17, 2023 · Viscosity-Temperature Charts for Liquid Petroleum Products1 This standard is issued under the fixed designation D341; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. 1 In certain cases, it is of interest to obtain the VI of an oil when conditions prevent the use of the standard tempera-tures of 40 °C and 100 °C. Dec 10, 2010 · By utlizing the ASTM D341 equation, this calculator will extrapolate a visocity curve based on the recommended method. ASTM D2270. The 9710 HMI is particularly user-friendly. D341 - ANNEX 17 (Mandatory Information) Al. 2020 - Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products Liquid Petroleum or Hydrocarbon Products, Viscosity-Temperature Equations and Charts for. In addition to this, one can calculate the oil viscosity at the operating temperature of the equipment. 1-3), which are a convenient means to ascertain the kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, provided that the kinematic viscosities at two temperatures are known. ASTM D341 ASTM equation for the kinematic viscosity of hydrocarbons May 1, 2020 · ASTM International - ASTM D341-20 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products Apr 30, 2020 · ASTM D341-20 - ABSTRACT This test method details the standard procedure for plotting viscosity-temperature charts that ascertain the kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, provided that the kinematic viscosities at two temperatures are known. The app also plots the kinematic viscosity as a function of temperature in the range from 40°C to 100°C. [17] compared three different methods to predict viscosity (ASTM D341 [18], Refutas index method [19] and a four-parameter model based on the Ratcliff and Khan [12] equation) finding better representation of the experimental data with the four-parameter model and the highest deviations with the Refutas index method. Further, a viscosity-temperature-pressure diagram derived from Yasutomi, Bair & Winer equation is expressed as a curve, and it depends on the base-oil composition of the lubricant. Such a straight Abstract This test method details the standard procedure for plotting viscosity-temperature charts that ascertain the kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, provided that the kinematic viscosities at two temperatures are known. 1 The complete design equation for the chart as given in Appendix X 1. Equations are provided for calculating viscosity index for petroleum products having kinematic viscosities above 70 mm 2 /s at 100 °C. Dec 1, 2011 · Al-Besharah et al. This document is intended for the exclusive and non collective use of AFNOR Webshop (Standards on line) customers. Standard practice for viscosity-temperature charts for liquid petroleum products Calculator for kinematic viscosity extrapolation according to ASTM D341. Toute mise en réseau, reproduction et rediffusion, sous quelque forme que ce soit, même partielle, sont strictement interdites. 1 The viscosity index is a widely used and accepted measure of the variation in kinematic viscosity due to changes in the temperature of a petroleum product between 40 °C and 100 °C. Reference should be made to Test Method D341 for the suitable equations. It is a suitable tool for determining the kinematic viscosity of a petroleum oil or liquid hydrocarbon at Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products. Kinematics at two temperatures Jan 5, 2020 · WITHDRAWN ASTM D341-20 1. Mar 20, 2007 · I have seen this can be done graphically using ASTM D2270 to determine the 100C viscosity from 40C viscosity grade and viscosity index, and then using special graph paper per ASTM D341 which allows a straight line connecting the two points. The basis of the viscosity vs temp equation is based on the ASTM standard Walther equation which is from ASTM D341. The document provides kinematic viscosity data points at 40C and 100C, and constants A and B that were solved from the data points using an equation from ASTM D341. It includes details on the charts' design, application, and limitations, emphasizing 1. Last 10. 00$60. Jun 1, 2015 · 1. Dec 11, 2022 · 1. All network exploitation 'Astm d341 PDF baseofdownloads net April 14th, 2018 - Astm d341 PDF 16 8 smart pickoff for turbine flowmeters flow technology latency two process variables kinematic viscosity cst standard practice for viscosity temperature charts for liquid petroleum products linear therefore we know that the fluid viscosity significantly affects the torque converter efficiency and this is' 'Calculators Anton I was advised to hide the math page. Kinematics at two temperatures ASTM D 341 - 2020 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products. The document then uses the equation to calculate the kinematic viscosity at 80C given the known values of A, B, and temperature. MEGAT Kinematic Viscosity Calculator This Streamlit application calculates the kinematic viscosity at a given temperature based on the ASTM-D341 standard equation. Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products 1. 1 This practice covers kinematic viscosity-temperature equations and charts (see Figs. read more X1. n the spreadsheet i often link to I use log base 10 and it seems to correspond with the real world very well. 3 cSt) at one one temperature (40 Degrees C). 00 Add to Cart Description Jun 7, 2006 · A new viscosity–temperature equation and corresponding chart have been developed to extend the range of the current ASTM viscosity–temperature charts. 00 Add to Cart Description Jun 27, 2001 · So to use the ASTM D341 expression to find the viscosity at any temperature we need to solve the equation to find the relevant values of A and B. The common equation used to calculate the viscosity by interpolation between two reference points is with the Ubbelohde-Walther equation, which is adopted in ASTM D341. ASTM D341 can be used to estimate viscosity if the required input or output temperatures are not available. Ubbelohde-Walther equation, Calculator, Operational Temperature Aug 10, 2020 · 1. Log10. A higher viscosity index indicates a smaller decrease in kinematic viscosity with increasing temperature of the lubricant. It is a suitable tool for determining the kinematic viscosity of a petroleum oil or liquid hydrocarbon at Dec 31, 2010 · The viscosity index is a widely used and accepted measure of the variation in kinematic viscosity due to changes in the temperature of a petroleum product between 40 and 100 ° C. An estimate may be made by calculating the kinematic viscosity at 40 °C and 100 °C from data obtained at other temperatures. It is a suitable tool for determining the kinematic viscosity of a petroleum oil or liquid hydrocarbon at Aug 16, 2017 · 1. , 1969, An Improved Viscosity-Temperature Chart for Hydrocarbons, Journal of Materials, 4 (1), pp. Users enter the EUROLAB laboratory provides testing and compliance services within the scope of ASTM D341 standard. Liability Statement This calculator has been provided as a tool, and should be used solely for informational Jun 27, 2001 · I have come up against a problem in another thread where there is serious disagreement between two calculation methods for viscosity. pdf), Text File (. The standard has ASTM D341 Standard Practice for Viscosity-Temperature Equations and Graphs for Liquid Petroleum or Hydrocarbon Products EUROLAB laboratory provides testing and compliance services within the scope of ASTM D341 standard. logT where v is kinematic viscosity at T degrees kelvin, I haven't done the calculations in both. at 60 [°]F this gives 283cSt and ASTM D341, (using the 120 [°]F and 220 [°]F viscosities from the lubricants spreadsheet as the two values in the ASTM D341 spreadsheet i. In the process environment this seems to work i. org Wright, A. Dec 11, 2022 · Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products1 This standard is issued under the fixed designation D341; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. It is a suitable tool for determining the kinematic viscosity of a petroleum oil or liquid hydrocarbon at Oct 31, 2021 · ASTM D7042-21a - SIGNIFICANCE AND USE 5. ASTM D341 ASTM equation for the kinematic viscosity of hydrocarbons Converts viscosity to different temperatures using ASTM D341 Enter the viscosity at two reference temperatures below Standard practice for viscosity-temperature charts for liquid petroleum products Calculator for kinematic viscosity extrapolation according to ASTM D341. 128. 1 本实践涵盖了运动粘度-温度图表（见图 1 和图 2），这是确定石油或液态烃在有限范围内的任何温度下的运动粘度的便捷方法，前提是两个温度下的运动粘度是已知的。 Jul 27, 2004 · The ASTM D341 equation seems to cover a lot of hydrocarbons: log 10. Document History ASTM D341 + REDLINE STANDARD PRACTICE FOR VISCOSITY-TEMPERATURE EQUATIONS AND CHARTS FOR LIQUID PETROLEUM OR HYDROCARBON PRODUCTS - INCLUDES STANDARD + REDLINE (PDF) ASTM D341-20e1 液态石油或碳氢化合物产品的粘度-温度方程和图表的标准实施规程 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products Providing Kinematic & Dynamic Viscosity for Oil Conditioning This application note utilizes well-established calculations specified in ASTM D341, which correlates to the equation for kinematic viscosity with temperature:. 7) = A-B. 7)= A-Blog10 (T+273) where v is the kinematic viscosity at temperature T deg C (for 2 cSt and above; below 2cst additional terms are required). 0 centistokes. The viscosity index is used in practice as a single number indicating temperature dependence ASTM D341 Standard Practice for Viscosity-Temperature Equations and Graphs for Liquid Petroleum or Hydrocarbon Products EUROLAB laboratory provides testing and compliance services within the scope of ASTM D341 standard. 1 ASTM Standards: D 445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (the Calculation of Dynamic Viscos- ity)2 2. 1520/D7152-11R16. May 1, 2020 · 1. 2 ASTM Adjuncts: Adjunct D 341, Viscosity-Temperature Charts 1–73 3. First some background. 1. afnor. 1 ASTM Standards:2 D341 Practice for Viscosity-Temperature Charts for Liquid Petroleum Products D445 Test Method for Kinematic Viscosity of Transparent and is the direct responsibility of Su com-mittee D02. The scope of the standard gives means to ascertain kinematic viscosity of a petroleum oil or liquid hydrocarbon at any temperature within a limited range, provided that the kinematic viscosities at two temperatures are known. 0 mm 2 /s at 100 °C. This new chart and equation extends the temperature and viscosity range for hydrocarbons and, for the first time, has the ability to extend to the low viscosity regime of halocarbons and low temperature fluids. This app covers kinematic viscosity-temperature equations and charts. It is a suitable tool for determining the kinematic viscosity of a petroleum oil or liquid hydrocarbon at ASTM D394} 93 MM 0759530 0522863 28T i qi Designation: D 341 - 93 ‘oie Race Se Pasta, Perea opted yomthe Aa book ct Tht Saranae, Copa ASTM ‘a Aran Nas! Stand Standard Viscosity-Temperature Charts for Liquid Petroleum Products’ “Toi standard sued under the fined designation D 34; the number immediacy foloing the designation indicates the yea of ngial adoption o nthe eve of revision the Full Description 1. docx), PDF File (. Viscosity measurements are highly sensitive and affected by numerous factors. A superscript epsilon ( ́) indicates an The ASTM D341 method uses the Walther equation (see Figure 1 and equation below), which requires only two parameters and two temperature data points. Best prices on ASTM D341-20e1 in PDF and print format. Incidentaly, i am shortly going to put a spreadsheet for the ASTM calculations (2cst and above) onto my website (if i D341 - Free download as Word Doc (. Oil viscosity decreases with increa sing temperature in the general pattern shown in Eigure 8, an example of ASTM charts which are available in pad form (ASTM D341). Powered by STGnet. Apr 1, 2006 · Once the temperature rise had been calculated, the Walther equation could be used to calculate the kinematic viscosity at that temperature. 2 The charts are designed to permit petroleum oil kine-matic viscosity-temperature data to plot as a straight line. I have always believed that a lubricant's viscosity temperature relationship can be described by the ASTM D341 equation. To use this equa-tion, the kinematic viscosity should be larger than 2. A straight line drawn through viscosities of an oil at any two temperatures permits estimation of viscosity at any other temperature, down to just above the cloud point. How can I calculate the change in viscosity using ASTM-D341 formula when the only diesel fuel data I can find is a viscosity range (2. ykymuq rltj due gjbfe jnfto hxye vbpqra fxxz msxa umpck dxneb rfla ljaoq zfhmi tggr