How is lubricant particle count measured in the lab?
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- เผยแพร่เมื่อ 31 พ.ค. 2024
- Particle counting is an important used oil analysis test for establishing oil cleanliness, which makes it an essential part of improving mechanical reliability - particularly in hydraulic, gear, pump and turbine systems. In this video we examine particle count by ISO 4407 (particle count by optical microscopy) and ISO 11500 (automated particle count by light extinction). Understanding the differences in these two standard laboratory techniques is critical to understanding why particle counts may vary between labs, or even between reports.
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I’ve been doing this analysis for almost 2 years. Finally a proper explanation!! Thank you very much
Great to hear!
Very informative. Thank you.
Glad it was helpful!
do you have an info the ASTM D7647 test? currently i run an LNF spectro system and would love to learn more
Hello. I've been getting a 4 code difference between ISO 11500 and ISO 4407 for hydraulic oils. Which method would you consider more reliable?
Very informative and great explanation.
Is there any guideline describing selection criteria between ISO 4407 and ISO 11500 ?
It's mainly time. ISO 11500 being completely automated makes it more appropriate for large scale lab analysis.
My lab said they cannot do particle count analysis on used engine oils. They said it is more designed for "clearer" hydraulic oils. Is this normal? I wanted to see how effective my reusable stainless steel mesh oil filter was working. I was very disappointed to hear this. I am assuming they use the laser test method, then correct?
useful
Glad you think so!