> Dear all;
> I'm looking for help in my search to establish a quality monitoring
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> Thanks allot.
> Tony
You find (too) much material with google--->"industrial mineral tests",
"silica sand lab tests", "silica sand standards", etc.
There are different specs for diatomite, perlite, sandstone, etc.
You have specific entries in: http://minerals.usgs.gov/minerals, and from
there, you should find current standards.
See also with google--->"industrial minerals review"
J.J.