slide1
Download
Skip this Video
Download Presentation
Phosphorus Volatility Summary and Recommendations (5-4-06)

Loading in 2 Seconds...

play fullscreen
1 / 6

Phosphorus Volatility Summary and Recommendations (5-4-06) - PowerPoint PPT Presentation


  • 100 Views
  • Uploaded on

Determination of Phosphorus Volatility from Lubricant Sequence Tests Presentation for ASTM ESCIT August 8, 2006. Phosphorus Volatility Summary and Recommendations (5-4-06). Can be determined using conventional UOA [ neglecting P consumed in anti-wear films and deposits ]

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Phosphorus Volatility Summary and Recommendations (5-4-06)' - uzuri


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Determination of Phosphorus Volatility from Lubricant Sequence TestsPresentation for ASTM ESCITAugust 8, 2006

phosphorus volatility summary and recommendations 5 4 06
Phosphorus VolatilitySummary and Recommendations (5-4-06)
  • Can be determined using conventional UOA

[ neglecting P consumed in anti-wear films and deposits ]

  • Sequence VIB appears to show “reasonable” scale
  • Possibilities for “multitasking” of a GF5 engine test to also yield measures of P volatility should be investigated
    • Analogous to IIIGA and T10A
    • Not as an extra P/F criterion
    • Goal is efficient utilization of data
multitasking of a sequence test issues
“Multitasking” of a sequence testIssues
  • Discrimination
    • Ability to distinguish finished oils with “good” versus “poor” performance
    • Industry reference oils needed
  • Precision
  • Calibration and Limits
    • Relative to 120,000 miles EPA durability schedule?
    • For which engine?
  • Rules for BOI and VGRA
    • Handle as “Technology Approval” rather than qualification of all products and grades
zddp structure performance
ZDDP Structure-Performance
  • Factors which reduce P volatility tend to compromise anti-wear performance
  • P retention is a finished oil issue. Any new specification could lead to new formulation approaches
    • Chemistry and dosage of the ZDDP system
    • Detergent system
    • Dispersant system
    • Friction modifier system
    • Antioxidant system
next steps
Next Steps
  • Sequence test data are needed for reference oils
    • IIIG/IIIH
    • VIB/VID
ad