Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Calculation of Petroleum Oil Molecular Weight from 2 Viscosities, Models ASTM D2502 Chart

Calculation of Petroleum Oil Molecular Weight from 2 Viscosities, Models ASTM D2502 Chart

Calculation of Petroleum Oil Molecular Weight from 2 Viscosities, Models ASTM D2502 Chart

I have posted a calculation for the molecular weight of a petroleum oil based on 2 viscosities developed in the mid 1980's that models the chart in ASTM D2502 at https://jawchemist.blogspot.com/p/mw-calc-full.htm... Link. It eliminates the tedium of reading the chart. An Excel spread sheet is available that converts the viscosity from cSt at 40C and 100C to 100F and 210F, checks and alerts if the viscosities are outside the chart area and reports the calculated MW.

The attached document was converted from Microsoft Word and only quickly reviewed for conversion errors. The Word document is available upon request.

thread483-33838: Fed up with the charts for Molecular weight in ASTM D2502? had asked if one was available.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close