From:	Jeff Clark
Sent:	Wednesday, October 26, 2005 12:20 PM
To:	Andrew Ritchie (E-mail); Andy Broff (E-mail); Bill Larch (E-mail); Bob Campbell (E-mail); Brad Carter (E-mail); Cathy Devlin (E-mail); Greg Shank (E-mail); Jeff Clark (E-mail); Jim Gutzwiller (E-mail); Jim Matasic (E-mail); Jim Moritz (E-mail); Jim Rutherford (E-mail); Joan Evans (E-mail); John Haegelin (E-mail); Jose Gutierrez (E-mail); Keith Selby (E-mail); Ken Goshorn (E-mail); Mark Cooper (E-mail); Michael Minotti (E-mail); Mr. Chris Castanien (E-mail); Pat Fetterman (E-mail); Riccardo Conti (E-mail); Ron Buck (E-mail); Scott Richards (E-mail); Steve Kennedy (E-mail); Wim Van Dam (E-mail)
Subject:	T-12 Meeting Minutes of October 26 2005
Attendance
Jim Gutzwiller, Elisa Santos, Joan Evans, Pat Fetterman, Jim Rutherford, Wim van Dam, Dave Stehouwer, Riccardo Conti, Ron Buck, Scott Richards, Greg Shank, Steve Kennedy, Mark Cooper, Jim Matasic, Ken Goshorn, Bob Campbell, Todd Dvorak, Phil Scinto, Jim Moritz, Jeff Clark, Martin Chadwick, Tony Barajas, Chris Castanien

Minutes
The minutes of October 11, 2005 were approved.

Data Analysis
Jim Rutherford reviewed the matrix data analysis (attached). After Jim's presentation, the TF decided to continue to collect both integrated and peak height IR measurements. The TMC will add the peak height IR measurements to the report packet. Joe Franklin will lead an IR round robin and possibly a work shop for the peak height measurements. Todd Dvorak presented an analysis (attached) of operational data and the effects on cylinder liner wear. Todd's analysis showed that intake manifold pressure is significant for cylinder liner wear and that this can explain some of the lab differences seen on liner wear. Todd used an equations to correct the data for boost pressure. The result is that the lab differences drop out and only oil effects remain. Debate occurred around whether this was really a boost issue or a soot issue. After examining some plots of soot, boost and liner wear, it appeared that boost showed the stronger relationship to liner wear. The action plan going forward: labs are to report dp across both the intake air system and the egr system (additional pressure taps will be needed and specified; Riccardo Conti will forward a proposal) and this item will be reviewed in the November meeting. Todd's analysis also showed a change in ring wear over time.

T-12 Merit Rating
Greg showed a merit system proposal (attached) that he will be giving to the HDEOCP. Greg moved that the T-12 test be recommended to the class panel as ready to move forward for use in the PC-10 category (Cooper second). After discussion, the motion carried 7-1-2.

Reference Oil
Greg moved that PC-10E be the T-12 reference oil (Scott Richards). This motion carried 10-0-0. 

Piston Crown Blistering
Bob has received only one set of blister ratings so far. Riccardo showed two results (attached). Riccardo also informed the TF that the blistering was present on pistons that ran tests with IMT of 80 deg C. The template for the rating is in CRC Manual 21. Labs pledged to complete the dataset.

Oil Ring Weight Measurements
The measurement does not specify whether or not the expander is included. Some labs include it, some do not. The cleaning and measuring procedure specifies that the expander is to be included and labs pledged to follow accordingly.

Operational Data
Labs are to get op data to the TMC by the 10/31

Next Meeting
Conference calls will likely be held each of the next two weeks (Nov 3 and 10). A meeting will be held Nov. 16th to review test operations.

Regards,

Jeff Clark
Staff Engineer
ASTM Test Monitoring Center
6555 Penn Avenue
Pittsburgh, PA 15206
412-365-1032
412-848-8843 (cell)
jac@astmtmc.cmu.edu