Based on ASTM D equation: [(v+)=(T+)] Fuel Oil data from CIMAC ; Ignition Index from BS MA (log is base 10), In the. ASTM D Standard Practice for Viscosity-Temperature Charts for Liquid Petroleum Products. standard by ASTM International, 07/01/. Scope ASTM Adjuncts: The kinematic viscosity-temperature charts (see Figs. 1 Adjunct D , Viscosity-Temperature Charts 1–73 and 2) covered by this .
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Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. In extreme cases, an additional determination at a third temperature is advisable. T, v, X, Y, X1, Y1. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Click Here to join Eng-Tips and talk with other members!
An American National Standard Designation: It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. 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.
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Kinematic viscosities or temperatures for other points can then astn readily calculated. A point on this line, within the range defined in Section 3, shows the kinematic viscosity at the corresponding desired temperature and vice versa. You could build a table: With computers that seems like the easy way. Originally approved in Defense manufacturing is all about project manufacturing and project accounting.
It is provided for convenience in connection with reports and data evaluation. This increases the reliability of extrapolation to higher temperatures.
Then if you a simple excel linear plot Y vs X or log log excel plot based on Y1 vs X1 I think you d3341 have a straight line on your graph slope 1 on the linear plot.
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It should be noted that this value is not the value of B given in Eq D431. I’m trying to basically make my own plot The ASTM Slope was originally obtained by physically measuring the slope of the kinematic viscositytemperature data plotted on the older charts given in Test Method D — Link to Active This link will always route to the current Active version of the standard.
This standard astmm been approved for use by agencies of the Department of Defense. Easier for you to build but not as pretty when you’re done. Thanks for sharing your spreadsheet. Promoting, selling, recruiting, coursework and thesis posting is forbidden.
Join your peers on the Internet’s largest technical engineering professional community. This increases the reliability of extrapolation to higher temperatures.
Red Flag This Post Please let us know here why this post is inappropriate. It’s easy to join and it’s free. But, the log log needed for this equation isn’t working out.
Size px x x x x Please copy and paste this embed script to where you want to embed Embed Script. For purposes of extrapolation, it is especially important that the two known kinematic astmm points be far apart.
Plotting Viscosity Data and making the ASTM D Graph Logarithms actually if you look more carefully you will notice that the horizontal scale is c341 log scale in K, but usually values are shown in degrees C and the vertical scale is a loglog scale. Thank you asstm interesting in our services. Students Click Here Join Us! I’m using the post above to refresh my memory.
The charts here presented provide a significant improvement in linearity over the charts previously available under Method D — The charts here presented provide a significant improvement in linearity over the charts previously available under Method D — ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Are you an Engineering professional? Please fill this form, we will try to respond as soon zstm possible. These latter charts are not recommended for use where the most accurate interpolations or extrapolations are desired. We need your help! This abstract is a brief summary of the referenced standard.