Work Item
ASTM WK95939
Revision of D7670-10(2021) Standard Practice for Processing In-service Fluid Samples for Particulate Contamination Analysis Using Membrane Filters
Rationale
Add a section to the procedure for heat treating the filter during particulate contamination analysis. The reasoning for this addition is that the heat treatment of filters in particulate contamination analysis improves the ability to determine ferrous from nonferrous material which can provide more insight and solutions for equipment problems.
Work Item Status
Date Initiated: 08-06-2025
Technical Contact: Sara Johnson