I'm cross posting the following from the Marine section. Not being anything approaching a tribologist myself but always interested in analsis I enjoyed it and hope you might to.....
Mobil's marine site has a very good "brochure" called Signum Technical Guide at the bottom of the page about their marine Signum oil analysis service. It's a .pdf file link from this page:
https://www.exxonmobil.com/en/marine/services/signum-oil-analysis-program
The last few pages contain a slew of understandable reference data including elemental analysis about the different variables tested for which goes way beyond anything Blackstone ever does. And that's fine but, like I said, the detail here is interesting to a layman like me and maybe worth the look for others. Hey, who knew a white blood cell was 25 microns? We always talk about filtering below that level. grin
Mobil's marine site has a very good "brochure" called Signum Technical Guide at the bottom of the page about their marine Signum oil analysis service. It's a .pdf file link from this page:
https://www.exxonmobil.com/en/marine/services/signum-oil-analysis-program
The last few pages contain a slew of understandable reference data including elemental analysis about the different variables tested for which goes way beyond anything Blackstone ever does. And that's fine but, like I said, the detail here is interesting to a layman like me and maybe worth the look for others. Hey, who knew a white blood cell was 25 microns? We always talk about filtering below that level. grin