Work Item
ASTM WK89109
Revision of D7317-07(2019) Standard Test Method for Coagulated Pentane Insolubles in Used Lubricating Oils by Paper Filtration (LMOA Method)
Rationale
In Sect 9.7, the procedure directs to ensure a minimum vacuum of 50.653 kPa (15 in. Hg). Without a maximum vacuum listed, there is potential for all filtration times to be less than 5 minutes. As such, nothing would ever rerun at reduced weight. Adding a maximum vacuum tolerance would reduce test variability caused by excessive vacuum.
Work Item Status
Date Initiated: 01-03-2024
Technical Contact: Mike Birke
Item: 038
Ballot: D02 (24-06)
Status: Ballot Item Approved