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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Promoting, selling, recruiting, coursework and thesis posting is forbidden. Seven charts are available as follows: For purposes of extrapolation, it is especially important that the two known kinematic viscosity-temperature points be far apart.
Kinematic viscosities or temperatures for other points can then be readily calculated.
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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard ast are not d31 as part of the standard. The charts here presented provide a significant improvement in linearity over the charts previously available under Method D — Plotting Viscosity Data and making the ASTM D Graph Logarithms actually if you look more carefully you will notice that the horizontal scale is a log scale in K, but usually values are asrm in degrees C and the vertical scale is a loglog scale.
I’m using the post above to refresh my memory. Students Click Here Join Us!
ASTM D / Viscosity-temperature extrapolation :: Anton Paar Wiki
Please help us to share our service with your friends. T, v, X, Y, X1, Y1. The improved charts given here utilize even different scale ratios for dimensional convenience and a different constant 0.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. You could build a table: This form can also be used to calculate the temperature associated with a desired kinematic viscosity. It should also xstm emphasized that fluids other than hydrocarbons will usually not plot as a straight line on these charts.
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Defense manufacturing is all about project manufacturing and project accounting. Extrapolations into such regions from lower temperatures will lack accuracy, however.
Originally approved in We need your help to maintenance this website. The ASTM Slope was originally obtained by physically measuring the slope of the kinematic viscositytemperature data plotted astmm the older charts given in Test Method D — It is provided for convenience in connection with reports and data evaluation.
Download Now Defense manufacturing is all about project manufacturing and project accounting. Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. It is xstm 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. Link to Active This link will always route to the c341 Active version of the standard. Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors.
I’m remembering now given two sets of T,v you can solve the constants and plot a curve in the T,v plane which is not a straight line and read off any value you want. The kinematic viscosity and temperature scales were not made to the same ratios in Test Method D — Experimental data taken below the cloud point or temperature of crystal growth will generally not be asttm reliable repeatability for interpolation or extrapolation on the charts.
The general relationship is: A point on this line, within the range defined in Section 3, shows the kinematic viscosity at the corresponding desired temperature and vice versa. I sure appreciate the help.
Please fill this form, we will try to respond as soon as possible. This abstract is a brief summary of the referenced standard.
You could take out all auto-generated gridlines and tickmarks and build your own vertical gridlines using extra series with constant values of T and your own horizontal gridlines with constant values of v. The suggested range is thus between the cloud point at low temperatures and the initial boiling point at higher temperatures. More convenient equations5 that agree closely with the chart scale are given astmm.
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